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JSL 0.2.4 documentation
JSL
Welcome to JSL’s documentation!
JSL is a DSL for describing JSON schemas.
Its code is open source and available at GitHub .
Tutorial
For an overview of JSL’s basic functionality, please see the Overview and Tutorial .
Overview and Tutorial
Welcome to JSL!
This document is a brief tour of JSL’s features and a quick guide to its
use. Additional documentation can be found in the API documentation .
Introduction
JSON Schema is a JSON-based format to define the structure of JSON data
for validation and documentation.
JSL is a Python library that provides a DSL for describing JSON schemas.
Why invent a DSL?
A JSON schema in terms of the Python language is a dictionary. A JSON schema
of a more or less complex data structure is a dictionary which most likely
contains a lot of nested dictionaries of dictionaries of dictionaries.
Writing and maintaining the readability of such a dictionary are not very
rewarding tasks. They require typing a lot of quotes, braces, colons and commas
and carefully indenting everything.
The JSON schema standard is not always intuitive. It takes a little bit of practice
to remember where to use the maxItems
keyword and where the maxLength
,
or not to forget to set additionalProperties
to false, and so on.
The syntax is not very concise. The signal-to-noise ratio increases rapidly
with the complexity of the schema, which makes large schemas difficult to read.
JSL is created to address these issues.
It allows you to define JSON schemas as if they were ORM models –
using classes and fields and relying on the deep metaclass magic under the hood.
Such an approach makes writing and reading schemas easier.
It encourages the decomposition of large schemas into smaller readable pieces
and makes schemas extendable using class inheritance. It enables the autocomplete
feature or IDEs and makes any mistype in a JSON schema keyword cause a RuntimeError.
Since every JSON schema object is itself valid JSON, the json
module in
the Python standard library can be used for printing and serialization of
a generated schema.
Quick Example
import jsl
class Entry ( jsl . Document ):
name = jsl . StringField ( required = True )
class File ( Entry ):
content = jsl . StringField ( required = True )
class Directory ( Entry ):
content = jsl . ArrayField ( jsl . OneOfField ([
jsl . DocumentField ( File , as_ref = True ),
jsl . DocumentField ( jsl . RECURSIVE_REFERENCE_CONSTANT )
]), required = True )
Directory.get_schema(ordered=True)
returns the following schema:
{
"$schema" : "http://json-schema.org/draft-04/schema#" ,
"definitions" : {
"directory" : {
"type" : "object" ,
"properties" : {
"name" : { "type" : "string" },
"content" : {
"type" : "array" ,
"items" : {
"oneOf" : [
{ "$ref" : "#/definitions/file" },
{ "$ref" : "#/definitions/directory" }
]
}
}
},
"required" : [ "name" , "content" ],
"additionalProperties" : false
},
"file" : {
"type" : "object" ,
"properties" : {
"name" : { "type" : "string" },
"content" : { "type" : "string" }
},
"required" : [ "name" , "content" ],
"additionalProperties" : false
}
},
"$ref" : "#/definitions/directory"
}
Main Features
JSL introduces the notion of a document and provides a set of fields .
The schema of a document is always {"type": "object"}
, whose properties
contain the
schemas of the fields of the document. A document may be thought of as a DictField
with some special abilities. A document is a class, thus it has a name, by which it can be
referenced from another document and either inlined or included using the
{"$ref": "..."}
syntax (see DocumentField
and its as_ref
parameter).
Also documents can be recursive.
The most useful method of Document
and the fields is Document.get_schema()
.
Fields and their parameters are named correspondingly to the keywords described in the
JSON Schema standard. So getting started with JSL will be easy for those familiar with
the standard .
Variables and Scopes
Suppose there is an application that provides a JSON RESTful API backed by MongoDB.
Let’s describe a User
data model:
class User ( jsl . Document ):
id = jsl . StringField ( required = True )
login = jsl . StringField ( required = True , min_length = 3 , max_length = 20 )
User.get_schema(ordered=True)
produces the following schema:
{
"$schema" : "http://json-schema.org/draft-04/schema#" ,
"type" : "object" ,
"additionalProperties" : false ,
"properties" : {
"id" : { "type" : "string" },
"login" : {
"type" : "string" ,
"minLength" : 3 ,
"maxLength" : 20
}
},
"required" : [ "id" , "login" ]
}
It describes a response of the imaginary /users/<login>/
endpoint and
perhaps a database document structure (if the application stores users “as is”).
Let’s now describe a structure of the data required to create a new user
(i.e., a JSON-payload of POST
-requests to the imaginary /users/
endpoint).
The data may and may not contain id
; if id
is not present, it will
be generated by the application:
class UserCreationRequest ( jsl . Document ):
id = jsl . StringField ()
login = jsl . StringField ( required = True , min_length = 3 , max_length = 20 )
The only difference between User
and UserCreationRequest
is whether
the "id"
field is required or not.
JSL provides means not to repeat ourselves.
Using Variables
Variables
. are objects which value depends on a given role.
Which value must be used for which role is determined by a list of rules.
A rule is a pair of a matcher and a value. A matcher is a callable that returns
True
or False
(or a string or an iterable that will be converted to a lambda).
Here’s what it may look like:
>>> var = jsl . Var ([
... # the same as (lambda r: r == 'role_1', 'A')
... ( 'role_1' , 'A' ),
... # the same as (lambda r: r in ('role_2', 'role_3'), 'A')
... (( 'role_2' , 'role_3' ), 'B' ),
... ( lambda r : r . startswith ( 'bad_role_' ), 'C' ),
... ], default = 'D' )
>>> var . resolve ( 'role_1' )
Resolution(value='A', role='role_1')
>>> var . resolve ( 'role_2' )
Resolution(value='B', role='role_2')
>>> var . resolve ( 'bad_role_1' )
Resolution(value='C', role='bad_role_1')
>>> var . resolve ( 'qwerty' )
Resolution(value='D', role='qwerty')
Variables can be used instead of regular values almost everywhere in JSL –
e.g., they can be added to documents, passed as arguments to fields
or even used as properties of a DictField
.
Let’s introduce a couple of roles for our User
document:
# to describe structures of POST requests
REQUEST_ROLE = 'request'
# to describe structures of responses
RESPONSE_ROLE = 'response'
# to describe structures of database documents
DB_ROLE = 'db'
Create a variable true_if_not_requests
which is only True
when the role is
REQUEST_ROLE
:
true_if_not_request = jsl . Var ({
jsl . not_ ( REQUEST_ROLE ): True
})
And describe User
and UserCreationRequest
in a single document
using true_if_not_requests
for the required
argument of the id
field:
class User ( jsl . Document ):
id = jsl . StringField ( required = true_if_not_request )
login = jsl . StringField ( required = True , min_length = 3 , max_length = 20 )
The role
argument can be specified for the Document.get_schema()
method:
User . get_schema ( ordered = True , role = REQUEST_ROLE )
That call will return the following schema. Note that "id"
is not listed as required:
{
"$schema" : "http://json-schema.org/draft-04/schema#" ,
"type" : "object" ,
"additionalProperties" : false ,
"properties" : {
"id" : { "type" : "string" },
"login" : {
"type" : "string" ,
"minLength" : 3 ,
"maxLength" : 20
}
},
"required" : [ "login" ]
}
Using Scopes
Let’s add a version
field to the User
document with the following
requirements in mind: it is stored in the database, but must not appear
neither in the request nor the response (a reason for this can be that HTTP
headers such as ETag
and If-Match
are used for concurrency control).
One way is to turn the version
field into a variable that only resolves
to the field when the current role is DB_ROLE
and resolves to
None
otherwise:
class User ( jsl . Document ):
id = jsl . StringField ( required = true_if_not_request )
login = jsl . StringField ( required = True , min_length = 3 , max_length = 20 )
version = jsl . Var ({
DB_ROLE : jsl . StringField ( required = True )
})
Another (and more preferable) way is to use scopes
:
class User ( jsl . Document ):
id = jsl . StringField ( required = true_if_not_request )
login = jsl . StringField ( required = True , min_length = 3 , max_length = 20 )
with jsl . Scope ( DB_ROLE ) as db_scope :
db_scope . version = jsl . StringField ( required = True )
A scope is a set of fields
and a matcher.
A scope can be added to a document, and if the matcher of a scope returns True
,
its fields will be present in the resulting schema.
A document may contain arbitrary number of scopes:
class Message ( jsl . Document ):
created_at = jsl . IntField ( required = True )
content = jsl . StringField ( required = True )
class User ( jsl . Document ):
id = jsl . StringField ( required = true_if_not_request )
login = jsl . StringField ( required = True , min_length = 3 , max_length = 20 )
with jsl . Scope ( jsl . not_ ( REQUEST_ROLE )) as full_scope :
# a new user can not have messages
full_scope . messages = jsl . ArrayField (
jsl . DocumentField ( Message ), required = True )
with jsl . Scope ( DB_ROLE ) as db_scope :
db_scope . version = jsl . StringField ( required = True )
Now User.get_schema(ordered=True, role=DB_ROLE)
returns the following schema:
{
"$schema" : "http://json-schema.org/draft-04/schema#" ,
"type" : "object" ,
"additionalProperties" : false ,
"properties" : {
"id" : { "type" : "string" },
"login" : {
"type" : "string" ,
"minLength" : 3 ,
"maxLength" : 20
},
"messages" : {
"type" : "array" ,
"items" : {
"type" : "object" ,
"additionalProperties" : false ,
"properties" : {
"created_at" : {
"type" : "integer"
},
"content" : {
"type" : "string"
}
},
"required" : [ "created_at" , "content" ]
}
},
"version" : { "type" : "string" }
},
"required" : [ "id" , "login" , "messages" , "version" ]
}
Document Inheritance
There are four inheritance modes available in JSL: inline , all-of , any-of , and one-of .
In the inline mode (used by default), a schema of the child document contains a copy
of its parent’s fields.
In the the other three modes a schema of the child document is a validator of the type allOf, anyOf,
or oneOf that contains references to all parent schemas along with the schema that defines the
child’s fields.
The inheritance mode can be set using the inheritance_mode
document option
.
Example
Suppose we have a Shape document:
class Shape ( Base ):
class Options ( object ):
definition_id = 'shape'
color = StringField ()
The table below shows the difference between inline and all-of modes:
Inline
All-of
class Circle ( Shape ):
class Options ( object ):
definition_id = 'circle'
# inheritance_mode = INLINE
radius = NumberField ()
class Circle ( Shape ):
class Options ( object ):
definition_id = 'circle'
inheritance_mode = ALL_OF
radius = NumberField ()
Resulting schema:
{
"type" : "object" ,
"properties" : {
"color" : {
"type" : "string"
},
"radius" : {
"type" : "number"
}
}
}
Resulting schema:
{
"definitions" : {
"shape" : {
"type" : "object" ,
"properties" : {
"color" : {
"type" : "string"
}
}
}
},
"allOf" : [
{
"$ref" : "#/definitions/shape"
},
{
"type" : "object" ,
"properties" : {
"radius" : {
"type" : "number"
}
}
}
]
}
More Examples
A JSON schema from the official documentation defined using JSL:
class DiskDevice ( jsl . Document ):
type = jsl . StringField ( enum = [ 'disk' ], required = True )
device = jsl . StringField ( pattern = '^/dev/[^/]+(/[^/]+)*$' , required = True )
class DiskUUID ( jsl . Document ):
type = jsl . StringField ( enum = [ 'disk' ], required = True )
label = jsl . StringField ( pattern = '^[a-fA-F0-9]{8}-[a-fA-F0-9]{4}-[a-fA-F0-9]{4}-'
'[a-fA-F0-9]{4}-[a-fA-F0-9]{12}$' ,
required = True )
class NFS ( jsl . Document ):
type = jsl . StringField ( enum = [ 'nfs' ], required = True )
remotePath = jsl . StringField ( pattern = '^(/[^/]+)+$' , required = True )
server = jsl . OneOfField ([
jsl . StringField ( format = 'ipv4' ),
jsl . StringField ( format = 'ipv6' ),
jsl . StringField ( format = 'host-name' ),
], required = True )
class TmpFS ( jsl . Document ):
type = jsl . StringField ( enum = [ 'tmpfs' ], required = True )
sizeInMb = jsl . IntField ( minimum = 16 , maximum = 512 , required = True )
class FSTabEntry ( jsl . Document ):
class Options ( object ):
description = 'schema for an fstab entry'
storage = jsl . OneOfField ([
jsl . DocumentField ( DiskDevice , as_ref = True ),
jsl . DocumentField ( DiskUUID , as_ref = True ),
jsl . DocumentField ( NFS , as_ref = True ),
jsl . DocumentField ( TmpFS , as_ref = True ),
], required = True )
fstype = jsl . StringField ( enum = [ 'ext3' , 'ext4' , 'btrfs' ])
options = jsl . ArrayField ( jsl . StringField (), min_items = 1 , unique_items = True )
readonly = jsl . BooleanField ()
API Documentation
Document
jsl.document.
ALL_OF
= 'all_of'
str(object=’‘) -> string
Return a nice string representation of the object.
If the argument is a string, the return value is the same object.
jsl.document.
ANY_OF
= 'any_of'
str(object=’‘) -> string
Return a nice string representation of the object.
If the argument is a string, the return value is the same object.
jsl.document.
ONE_OF
= 'one_of'
str(object=’‘) -> string
Return a nice string representation of the object.
If the argument is a string, the return value is the same object.
jsl.document.
INLINE
= 'inline'
str(object=’‘) -> string
Return a nice string representation of the object.
If the argument is a string, the return value is the same object.
class jsl.document.
Options
( additional_properties=False , pattern_properties=None , min_properties=None , max_properties=None , title=None , description=None , default=None , enum=None , id='' , schema_uri='http://json-schema.org/draft-04/schema#' , definition_id=None , roles_to_propagate=None , inheritance_mode='inline' ) [source]
A container for options.
All the arguments are the same and work exactly as for fields.DictField
except properties
(since it is automatically populated with the document fields)
and these:
class jsl.document.
Document
[source]
A document. Can be thought as a kind of fields.DictField
, which
properties are defined by the fields and scopes added to the document class.
It can be tuned using special Options
attribute (see Options
for available settings):
class User ( Document ):
class Options ( object ):
title = 'User'
description = 'A person who uses a computer or network service.'
login = StringField ( required = True )
Note
A subclass inherits options of its parent documents.
classmethod is_recursive
( role='default' ) [source]
Returns True
if there is a DocumentField
-references cycle
that contains cls
.
Parameters: role (str ) – A current role.
classmethod get_definition_id
( role='default' ) [source]
Returns a unique string to be used as a key for this document
in the "definitions"
schema section.
classmethod resolve_field
( field , role='default' ) [source]
Resolves a field with the name field
using role
.
classmethod resolve_and_iter_fields
( role='default' ) [source]
Resolves each resolvable attribute of a document using the specified role
and yields a tuple of (attribute name, field) in case the result is a JSL field.
Changed in version 0.2: The method has been changed to iterate only over fields that attached as attributes,
and yield tuples instead of plain BaseField
.
classmethod resolve_and_walk
( role='default' , through_document_fields=False , visited_documents=frozenset([]) ) [source]
The same as walk()
, but resolvables
are
resolved using role
.
classmethod iter_fields
( ) [source]
Iterates over the fields of the document, resolving its
resolvables
to all possible values.
classmethod walk
( through_document_fields=False , visited_documents=frozenset([]) ) [source]
Iterates recursively over the fields of the document, resolving
occurring resolvables
to their all possible values.
Visits fields in a DFS order.
Parameters:
through_document_fields (bool ) – If True
, walks through nested DocumentField
fields.
visited_documents (set ) – Keeps track of visited documents
to avoid infinite
recursion when through_document_field
is True
.
Returns: iterable of BaseField
classmethod get_schema
( role='default' , ordered=False ) [source]
Returns a JSON schema (draft v4) of the document.
Parameters:
role (str ) – A role.
ordered (bool ) – If True
, the resulting schema dictionary is ordered. Fields are
listed in the order they are added to the class. Schema properties are
also ordered in a sensible and consistent way, making the schema more
human-readable.
Raises: SchemaGenerationException
Return type: dict or OrderedDict
classmethod get_definitions_and_schema
( role='default' , res_scope=ResolutionScope( base= , current= , output= ) , ordered=False , ref_documents=None ) [source]
Returns a tuple of two elements.
The second element is a JSON schema of the document, and the first is
a dictionary that contains definitions that are referenced from the schema.
Parameters:
role (str ) – A role.
ordered (bool ) – If True
, the resulting schema dictionary is ordered. Fields are
listed in the order they are added to the class. Schema properties are
also ordered in a sensible and consistent way, making the schema more
human-readable.
res_scope (ResolutionScope
) – The current resolution scope.
ref_documents (set ) – If subclass of Document
is in this set, all DocumentField
s
pointing to it will be resolved as a reference: {"$ref": "#/definitions/..."}
.
Note: resulting definitions will not contain schema for this document.
Raises: SchemaGenerationException
Return type: (dict or OrderedDict)
class jsl.document.
DocumentMeta
[source]
A metaclass for Document
. It’s responsible for collecting
options, fields and scopes registering the document in the registry, making
it the owner of nested document fields
s and so on.
options_container
A class to be used by create_options()
.
Must be a subclass of Options
.
alias of Options
classmethod collect_fields
( mcs , bases , attrs ) [source]
Collects fields from the current class and its parent classes.
Return type: a dictionary mapping field names to fields
classmethod collect_options
( mcs , bases , attrs ) [source]
Collects options from the current class and its parent classes.
Returns: a dictionary of options
classmethod create_options
( options ) [source]
Wraps options
into a container class
(see options_container
).
Parameters: options – a dictionary of options
Returns: an instance of options_container
Fields
Primitive Fields
class jsl.fields.
NullField
( id='' , default=None , enum=None , title=None , description=None , **kwargs ) [source]
A null field.
class jsl.fields.
BooleanField
( id='' , default=None , enum=None , title=None , description=None , **kwargs ) [source]
A boolean field.
class jsl.fields.
NumberField
( multiple_of=None , minimum=None , maximum=None , exclusive_minimum=None , exclusive_maximum=None , **kwargs ) [source]
A number field.
Parameters:
multiple_of (number or Resolvable
) – A value must be a multiple of this factor.
minimum (number or Resolvable
) – A minimum allowed value.
exclusive_minimum (bool or Resolvable
) – Whether a value is allowed to exactly equal the minimum.
maximum (number or Resolvable
) – A maximum allowed value.
exclusive_maximum (bool or Resolvable
) – Whether a value is allowed to exactly equal the maximum.
multiple_of
= None
minimum
= None
exclusive_minimum
= None
maximum
= None
exclusive_maximum
= None
class jsl.fields.
IntField
( multiple_of=None , minimum=None , maximum=None , exclusive_minimum=None , exclusive_maximum=None , **kwargs ) [source]
Bases: jsl.fields.primitive.NumberField
An integer field.
class jsl.fields.
StringField
( pattern=None , format=None , min_length=None , max_length=None , **kwargs ) [source]
A string field.
Parameters:
pattern (string or Resolvable
) – A regular expression (ECMA 262) that a string value must match.
format (string or Resolvable
) – A semantic format of the string (for example, "date-time"
,
"email"
, or "uri"
).
min_length (int or Resolvable
) – A minimum length.
max_length (int or Resolvable
) – A maximum length.
pattern
= None
format
= None
min_length
= None
max_length
= None
class jsl.fields.
EmailField
( pattern=None , format=None , min_length=None , max_length=None , **kwargs ) [source]
Bases: jsl.fields.primitive.StringField
An email field.
class jsl.fields.
IPv4Field
( pattern=None , format=None , min_length=None , max_length=None , **kwargs ) [source]
Bases: jsl.fields.primitive.StringField
An IPv4 field.
class jsl.fields.
DateTimeField
( pattern=None , format=None , min_length=None , max_length=None , **kwargs ) [source]
Bases: jsl.fields.primitive.StringField
An ISO 8601 formatted date-time field.
class jsl.fields.
UriField
( pattern=None , format=None , min_length=None , max_length=None , **kwargs ) [source]
Bases: jsl.fields.primitive.StringField
A URI field.
Compound Fields
jsl.fields.
RECURSIVE_REFERENCE_CONSTANT
A special value to be used as an argument to create
a recursive DocumentField
.
class jsl.fields.
DocumentField
( document_cls , as_ref=False , **kwargs ) [source]
A reference to a nested document.
Parameters:
document_cls – A string (dot-separated path to document class, i.e. "app.resources.User"
),
RECURSIVE_REFERENCE_CONSTANT
or a Document
subclass.
as_ref (bool ) – If True
, the schema of document_cls`
is placed into the definitions
dictionary, and the field schema just references to it:
{"$ref": "#/definitions/..."}
.
It may make a resulting schema more readable.
owner_cls
= None
A Document
this field is attached to.
as_ref
= None
document_cls
A Document
this field points to.
class jsl.fields.
RefField
( pointer , **kwargs ) [source]
A reference.
pointer
= None
class jsl.fields.
ArrayField
( items=None , additional_items=None , min_items=None , max_items=None , unique_items=None , **kwargs ) [source]
An array field.
Parameters:
items – Either of the following:
BaseField
– all items of the array must match the field schema;
a list or a tuple of fields
– all items of the array must be
valid according to the field schema at the corresponding index (tuple typing);
a Resolvable
resolving to either of the first two options.
min_items (int or Resolvable
) – A minimum length of an array.
max_items (int or Resolvable
) – A maximum length of an array.
unique_items (bool or Resolvable
) – Whether all the values in the array must be distinct.
additional_items (bool or BaseField
or Resolvable
) – If the value of items
is a list or a tuple, and the array length is larger than
the number of fields in items
, then the additional items are described
by the BaseField
passed using this argument.
items
= None
min_items
= None
max_items
= None
unique_items
= None
additional_items
= None
class jsl.fields.
DictField
( properties=None , pattern_properties=None , additional_properties=None , min_properties=None , max_properties=None , **kwargs ) [source]
A dictionary field.
Parameters:
properties (dict[str -> BaseField
or Resolvable
]) – A dictionary containing fields.
pattern_properties (dict[str -> BaseField
or Resolvable
]) – A dictionary whose keys are regular expressions (ECMA 262).
Properties match against these regular expressions, and for any that match,
the property is described by the corresponding field schema.
additional_properties (bool or BaseField
or Resolvable
) – Describes properties that are not described by the properties
or pattern_properties
.
min_properties (int or Resolvable
) – A minimum number of properties.
max_properties (int or Resolvable
) – A maximum number of properties
properties
= None
pattern_properties
= None
additional_properties
= None
min_properties
= None
max_properties
= None
class jsl.fields.
NotField
( field , **kwargs ) [source]
field
= None
class jsl.fields.
OneOfField
( fields , **kwargs ) [source]
Parameters: fields (list[BaseField
or Resolvable
]) – A list of fields, exactly one of which describes the data.
fields
= None
class jsl.fields.
AnyOfField
( fields , **kwargs ) [source]
Parameters: fields (list[BaseField
or Resolvable
]) – A list of fields, at least one of which describes the data.
fields
= None
class jsl.fields.
AllOfField
( fields , **kwargs ) [source]
Parameters: fields (list[BaseField
or Resolvable
]) – A list of fields, all of which describe the data.
fields
= None
Base Classes
jsl.fields.
Null
= <jsl.fields.base.NullSentinel object>
A special value that can be used to set the default value
of a field to null.
class jsl.fields.
BaseField
( name=None , required=False , **kwargs ) [source]
A base class for fields of documents
.
Instances of this class may be added to a document to define its properties.
Implements the Resolvable
interface.
name
= None
Name
required
= None
Whether the field is required.
resolve
( role ) [source]
Implements the Resolvable
interface.
Always returns a Resolution(self, role)
.
iter_possible_values
( ) [source]
Implements the Resolvable
interface.
Yields a single value – self
.
get_definitions_and_schema
( role='default' , res_scope=ResolutionScope( base= , current= , output= ) , ordered=False , ref_documents=None ) [source]
Returns a tuple of two elements.
The second element is a JSON schema of the data described by this field,
and the first is a dictionary that contains definitions that are referenced
from the schema.
Parameters:
role (str ) – A role.
ordered (bool ) – If True
, the resulting schema dictionary is ordered. Fields are
listed in the order they are added to the class. Schema properties are
also ordered in a sensible and consistent way, making the schema more
human-readable.
res_scope (ResolutionScope
) – The current resolution scope.
ref_documents (set ) – If subclass of Document
is in this set, all DocumentField
s
pointing to it will be resolved to a reference: {"$ref": "#/definitions/..."}
.
Note: resulting definitions will not contain schema for this document.
Raises: SchemaGenerationException
Return type: (dict, dict or OrderedDict)
iter_fields
( ) [source]
Iterates over the nested fields of the document examining all
possible values of the occuring resolvables
.
walk
( through_document_fields=False , visited_documents=frozenset([]) ) [source]
Iterates recursively over the nested fields, examining all
possible values of the occuring resolvables
.
Visits fields in a DFS order.
Parameters:
through_document_fields (bool ) – If True
, walks through nested DocumentField
fields.
visited_documents (set ) – Keeps track of visited documents
to avoid infinite
recursion when through_document_field
is True
.
Returns: iterable of BaseField
resolve_and_iter_fields
( role='default' ) [source]
The same as iter_fields()
, but resolvables
are resolved using role
.
resolve_and_walk
( role='default' , through_document_fields=False , visited_documents=frozenset([]) ) [source]
The same as walk()
, but resolvables
are
resolved using role
.
get_schema
( ordered=False , role='default' ) [source]
Returns a JSON schema (draft v4) of the field.
Parameters:
role (str ) – A role.
ordered (bool ) – If True
, the resulting schema dictionary is ordered. Fields are
listed in the order they are added to the class. Schema properties are
also ordered in a sensible and consistent way, making the schema more
human-readable.
Raises: SchemaGenerationException
Return type: dict or OrderedDict
resolve_attr
( attr , role='default' ) [source]
Resolves an attribure with the name field
using role
.
If the value of attr
is resolvable
,
it resolves it using a given role
and returns the result.
Otherwise it returns the raw value and role
unchanged.
class jsl.fields.
BaseSchemaField
( id='' , default=None , enum=None , title=None , description=None , **kwargs ) [source]
A base class for fields that directly map to JSON Schema validator.
Parameters:
required (bool or Resolvable
) – If the field is required. Defaults to False
.
id (str ) – A string to be used as a value of the “id” keyword of the resulting schema.
default (any JSON-representable object, a callable or a Resolvable
) – The default value for this field. May be Null
(a special value
to set the default value to null) or a callable.
enum (list, tuple, set, callable or Resolvable
) – A list of valid choices. May be a callable.
title (str or Resolvable
) – A short explanation about the purpose of the data described by this field.
description (str or Resolvable
) – A detailed explanation about the purpose of the data described by this field.
id
= None
A string to be used as a value of the “id” keyword of the resulting schema.
title
= None
A short explanation about the purpose of the data.
description
= None
A detailed explanation about the purpose of the data.
get_enum
( role='default' ) [source]
Returns a list to be used as a value of the "enum"
schema keyword.
get_default
( role='default' ) [source]
Returns a value of the "default"
schema keyword.
Roles
jsl.roles.
DEFAULT_ROLE
A default role.
class jsl.roles.
Resolution
( value , role )
A resolution result, a namedtuple
.
value
A resolved value (the first element).
role
A role to be used for visiting nested objects (the second element).
class jsl.roles.
Resolvable
[source]
An interface that represents an object which value varies
depending on a role.
resolve
( role ) [source]
Returns a value for a given role
.
Parameters: role (str ) – A role.
Returns: A resolution
.
iter_possible_values
( ) [source]
Iterates over all possible values except None
ones.
class jsl.roles.
Var
( values=None , default=None , propagate=<function all_> ) [source]
A Resolvable
implementation.
Parameters:
values (dict or list of pairs ) – A dictionary or a list of key-value pairs, where keys are matchers
and values are corresponding values.
Matchers are callables returning boolean values. Strings and
iterables are also accepted and processed as follows:
A string s
will be replaced with a lambda lambda r: r == s
;
An iterable i
will be replaced with a lambda lambda r: r in i
.
default – A value to return if all matchers returned False
.
propagate (callable, string or iterable ) – A matcher that determines which roles are to be propagated down
to the nested objects. Default is all_
that matches
all roles.
values
A list of pairs (matcher, value).
propagate
A matcher that determines which roles are to be propagated down
to the nested objects.
iter_possible_values
( ) [source]
Implements the Resolvable
interface.
Yields non-None
values from values
.
resolve
( role ) [source]
Implements the Resolvable
interface.
Parameters: role (str ) – A role.
Returns: A resolution
,which value is the first value which matcher returns True
and
the role is either a given role
(if propagate`
matcher
returns True
) or DEFAULT_ROLE
(otherwise).
class jsl.roles.
Scope
( matcher ) [source]
A scope consists of a set of fields and a matcher.
Fields can be added to a scope as attributes:
scope = Scope ( 'response' )
scope . name = StringField ()
scope . age = IntField ()
A scope can then be added to a Document
.
During a document class construction process, fields of each of its scopes
are added to the resulting class as variables
which only
resolve to fields when the matcher of the scope returns True
.
If two fields with the same name are assigned to different document scopes,
the matchers of the corresponding Var
will be the matchers of the
scopes in order they were added to the class.
Scope
can also be used as a context manager. At the moment it
does not do anything and only useful as a syntactic sugar – to introduce
an extra indentation level for the fields defined within the same scope.
For example:
class User ( Document ):
with Scope ( 'db_role' ) as db :
db . _id = StringField ( required = True )
db . version = StringField ( required = True )
with Scope ( 'response_role' ) as db :
db . version = IntField ( required = True )
Is an equivalent of:
class User ( Document ):
db . _id = Var ([
( 'db_role' , StringField ( required = True ))
])
db . version = Var ([
( 'db_role' , StringField ( required = True ))
( 'response_role' , IntField ( required = True ))
])
Parameters: matcher (callable, string or iterable ) – A matcher.
__field__
An ordered dictionary of fields
.
__matcher__
A matcher.
Helpers
jsl.roles.
all_
( role ) [source]
A matcher that always returns True
.
jsl.roles.
not_
( *roles ) [source]
Returns a matcher that returns True
for all roles
except those are listed as arguments.
Exceptions
class jsl.exceptions.
SchemaGenerationException
( message ) [source]
Raised when a valid JSON schema can not be generated from a JSL object.
Examples of such situation are the following:
Note: this error can only happen if variables are used in a document or field
description.
Parameters: message (str ) – A message.
message
= None
A message.
steps
= None
A deque of steps
, ordered from the first (the least specific)
to the last (the most specific).
Steps
Steps attached to a SchemaGenerationException
serve as a traceback
and help a user to debug the error in the document or field description.
class jsl.exceptions.
Step
( entity , role='default' ) [source]
A step of the schema generation process that caused the error.
Parameters:
entity – An entity being processed.
role (str ) – A current role.
entity
= None
An entity being processed.
role
= None
A current role.
class jsl.exceptions.
DocumentStep
( entity , role='default' ) [source]
Bases: jsl.exceptions.Step
A step of processing a document
.
Parameters:
entity (subclass of Document
) – An entity being processed.
role (str ) – A current role.
class jsl.exceptions.
FieldStep
( entity , role='default' ) [source]
Bases: jsl.exceptions.Step
A step of processing a field
.
Parameters:
entity (instance of BaseField
) – An entity being processed.
role (str ) – A current role.
class jsl.exceptions.
AttributeStep
( entity , role='default' ) [source]
Bases: jsl.exceptions.Step
A step of processing an attribute of a field.
entity
is the name of an attribute
(e.g., "properties"
, "additional_properties"
, etc.)
Parameters:
entity (str ) – An entity being processed.
role (str ) – A current role.
class jsl.exceptions.
ItemStep
( entity , role='default' ) [source]
Bases: jsl.exceptions.Step
A step of processing an item of an attribute.
entity
is either a key or an index (e.g., it can be "created_at"
if the current attribute is properties
of a DictField
or
0
if the current attribute is items
of a ArrayField
).
Parameters:
entity (str or int ) – An entity being processed.
role (str ) – A current role.
Resolution Scope
class jsl.resolutionscope.
ResolutionScope
( base='' , current='' , output='' ) [source]
An utility class to help with translating id
attributes of
fields
into JSON schema "id"
properties.
Parameters:
base (str ) – A URI, a resolution scope of the outermost schema.
current (str ) – A URI, a resolution scope of the current schema.
output (str ) – A URI, an output part (expressed by parent schema id properties) scope of
the current schema.
base
A resolution scope of the outermost schema.
current
A resolution scope of the current schema.
output
An output part (expressed by parent schema id properties) scope of
the current schema.
replace
( current=None , output=None ) [source]
Returns a copy of the scope with the current
and output
scopes replaced.
alter
( field_id ) [source]
Returns a pair, where the first element is the identifier to be used
as a value for the "id"
JSON schema field and the second is
a new ResolutionScope
to be used when visiting the nested fields
of the field with id field_id
.
create_ref
( definition_id ) [source]
Returns a reference ({"$ref": ...}
) relative to the base scope.
jsl.resolutionscope.
EMPTY_SCOPE
An empty ResolutionScope
.
Changelog
0.2.4 2016-05-11
Subschema definitions are now sorted when ordered=True
(issue #24 ).
0.2.1 2015-11-23
Fix a bug when referencing a recursive document using DocumentField
with as_ref=True
produced circular references (issue #16 ).
0.2.0 2015-11-08
Minor breaking change for the issue #15 : Document.resolve_and_iter_fields()
now iterates only over fields that are attached as attributes
(fields specified in document Options
as pattern_properties
or
additional_properties
won’t be processed), and yields tuples of (field name, field).
0.1.5: 2015-10-22
Fix a bug when using RECURSIVE_REFERENCE_CONSTANT under a scope caused
infinite recursion (issue #14 ).
0.1.3: 2015-08-12
Add a name
parameter to BaseField
which makes it possible to create documents
with fields whose names contain symbols that are not allowed in Python variable
names (such as hyphen);
Introduce RefField
.
0.1.2: 2015-06-12
Allow specifying a null default value for fields (see Null
value) by Nathan Hoad.
0.0.10: 2015-04-28
Fix spelling of exclusiveMinimum
by Keith T. Star.
0.0.9: 2015-04-10
Introduce the ordered
argument for get_schema()
that
adds the ability to create more readable JSON schemas with ordered parameters.
0.0.8: 2015-03-21
Add the ability to specify an id for documents and fields.
0.0.7: 2015-03-11
More subclassing-friendly DocumentMeta
which allows to
override methods for collecting document fields and options and
choose a container class for storing options;
Various minor bugfixes.
0.0.5: 2015-03-01
Python 3 support by Igor Davydenko.
Contributing
The project is hosted on GitHub .
Please feel free to send a pull request or open an issue.
Running the Tests
$ pip install -r ./requirements-dev.txt
$ ./test.sh
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* doctools.js
* ~~~~~~~~~~~
*
* Sphinx JavaScript utilities for all documentation.
*
* :copyright: Copyright 2007-2016 by the Sphinx team, see AUTHORS.
* :license: BSD, see LICENSE for details.
*
*/
/**
* select a different prefix for underscore
*/
$u = _.noConflict();
/**
* make the code below compatible with browsers without
* an installed firebug like debugger
if (!window.console || !console.firebug) {
var names = ["log", "debug", "info", "warn", "error", "assert", "dir",
"dirxml", "group", "groupEnd", "time", "timeEnd", "count", "trace",
"profile", "profileEnd"];
window.console = {};
for (var i = 0; i < names.length; ++i)
window.console[names[i]] = function() {};
}
*/
/**
* small helper function to urldecode strings
*/
jQuery.urldecode = function(x) {
return decodeURIComponent(x).replace(/\+/g, ' ');
};
/**
* small helper function to urlencode strings
*/
jQuery.urlencode = encodeURIComponent;
/**
* This function returns the parsed url parameters of the
* current request. Multiple values per key are supported,
* it will always return arrays of strings for the value parts.
*/
jQuery.getQueryParameters = function(s) {
if (typeof s == 'undefined')
s = document.location.search;
var parts = s.substr(s.indexOf('?') + 1).split('&');
var result = {};
for (var i = 0; i < parts.length; i++) {
var tmp = parts[i].split('=', 2);
var key = jQuery.urldecode(tmp[0]);
var value = jQuery.urldecode(tmp[1]);
if (key in result)
result[key].push(value);
else
result[key] = [value];
}
return result;
};
/**
* highlight a given string on a jquery object by wrapping it in
* span elements with the given class name.
*/
jQuery.fn.highlightText = function(text, className) {
function highlight(node) {
if (node.nodeType == 3) {
var val = node.nodeValue;
var pos = val.toLowerCase().indexOf(text);
if (pos >= 0 && !jQuery(node.parentNode).hasClass(className)) {
var span = document.createElement("span");
span.className = className;
span.appendChild(document.createTextNode(val.substr(pos, text.length)));
node.parentNode.insertBefore(span, node.parentNode.insertBefore(
document.createTextNode(val.substr(pos + text.length)),
node.nextSibling));
node.nodeValue = val.substr(0, pos);
}
}
else if (!jQuery(node).is("button, select, textarea")) {
jQuery.each(node.childNodes, function() {
highlight(this);
});
}
}
return this.each(function() {
highlight(this);
});
};
/*
* backward compatibility for jQuery.browser
* This will be supported until firefox bug is fixed.
*/
if (!jQuery.browser) {
jQuery.uaMatch = function(ua) {
ua = ua.toLowerCase();
var match = /(chrome)[ \/]([\w.]+)/.exec(ua) ||
/(webkit)[ \/]([\w.]+)/.exec(ua) ||
/(opera)(?:.*version|)[ \/]([\w.]+)/.exec(ua) ||
/(msie) ([\w.]+)/.exec(ua) ||
ua.indexOf("compatible") < 0 && /(mozilla)(?:.*? rv:([\w.]+)|)/.exec(ua) ||
[];
return {
browser: match[ 1 ] || "",
version: match[ 2 ] || "0"
};
};
jQuery.browser = {};
jQuery.browser[jQuery.uaMatch(navigator.userAgent).browser] = true;
}
/**
* Small JavaScript module for the documentation.
*/
var Documentation = {
init : function() {
this.fixFirefoxAnchorBug();
this.highlightSearchWords();
this.initIndexTable();
},
/**
* i18n support
*/
TRANSLATIONS : {},
PLURAL_EXPR : function(n) { return n == 1 ? 0 : 1; },
LOCALE : 'unknown',
// gettext and ngettext don't access this so that the functions
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gettext : function(string) {
var translated = Documentation.TRANSLATIONS[string];
if (typeof translated == 'undefined')
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return (typeof translated == 'string') ? translated : translated[0];
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ngettext : function(singular, plural, n) {
var translated = Documentation.TRANSLATIONS[singular];
if (typeof translated == 'undefined')
return (n == 1) ? singular : plural;
return translated[Documentation.PLURALEXPR(n)];
},
addTranslations : function(catalog) {
for (var key in catalog.messages)
this.TRANSLATIONS[key] = catalog.messages[key];
this.PLURAL_EXPR = new Function('n', 'return +(' + catalog.plural_expr + ')');
this.LOCALE = catalog.locale;
},
/**
* add context elements like header anchor links
*/
addContextElements : function() {
$('div[id] > :header:first').each(function() {
$('').
attr('href', '#' + this.id).
attr('title', _('Permalink to this headline')).
appendTo(this);
});
$('dt[id]').each(function() {
$('').
attr('href', '#' + this.id).
attr('title', _('Permalink to this definition')).
appendTo(this);
});
},
/**
* workaround a firefox stupidity
* see: https://bugzilla.mozilla.org/show_bug.cgi?id=645075
*/
fixFirefoxAnchorBug : function() {
if (document.location.hash)
window.setTimeout(function() {
document.location.href += '';
}, 10);
},
/**
* highlight the search words provided in the url in the text
*/
highlightSearchWords : function() {
var params = $.getQueryParameters();
var terms = (params.highlight) ? params.highlight[0].split(/\s+/) : [];
if (terms.length) {
var body = $('div.body');
if (!body.length) {
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window.setTimeout(function() {
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$('
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}
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*/
initIndexTable : function() {
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var idnum = $(this).attr('id').substr(7);
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if (DOCUMENTATION_OPTIONS.COLLAPSE_INDEX) {
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}
},
/**
* helper function to hide the search marks again
*/
hideSearchWords : function() {
$('#searchbox .highlight-link').fadeOut(300);
$('span.highlighted').removeClass('highlighted');
},
/**
* make the url absolute
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makeURL : function(relativeURL) {
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},
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* get the current relative url
*/
getCurrentURL : function() {
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};
// quick alias for translations
_ = Documentation.gettext;
$(document).ready(function() {
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PK jH8c c jsl-stable/_static/websupport.js/*
* websupport.js
* ~~~~~~~~~~~~~
*
* sphinx.websupport utilties for all documentation.
*
* :copyright: Copyright 2007-2016 by the Sphinx team, see AUTHORS.
* :license: BSD, see LICENSE for details.
*
*/
(function($) {
$.fn.autogrow = function() {
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(function($) {
var comp, by;
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function initEvents() {
$(document).on("click", 'a.comment-close', function(event) {
event.preventDefault();
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$(document).on("click", 'a.vote', function(event) {
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handleVote($(this));
});
$(document).on("click", 'a.reply', function(event) {
event.preventDefault();
openReply($(this).attr('id').substring(2));
});
$(document).on("click", 'a.close-reply', function(event) {
event.preventDefault();
closeReply($(this).attr('id').substring(2));
});
$(document).on("click", 'a.sort-option', function(event) {
event.preventDefault();
handleReSort($(this));
});
$(document).on("click", 'a.show-proposal', function(event) {
event.preventDefault();
showProposal($(this).attr('id').substring(2));
});
$(document).on("click", 'a.hide-proposal', function(event) {
event.preventDefault();
hideProposal($(this).attr('id').substring(2));
});
$(document).on("click", 'a.show-propose-change', function(event) {
event.preventDefault();
showProposeChange($(this).attr('id').substring(2));
});
$(document).on("click", 'a.hide-propose-change', function(event) {
event.preventDefault();
hideProposeChange($(this).attr('id').substring(2));
});
$(document).on("click", 'a.accept-comment', function(event) {
event.preventDefault();
acceptComment($(this).attr('id').substring(2));
});
$(document).on("click", 'a.delete-comment', function(event) {
event.preventDefault();
deleteComment($(this).attr('id').substring(2));
});
$(document).on("click", 'a.comment-markup', function(event) {
event.preventDefault();
toggleCommentMarkupBox($(this).attr('id').substring(2));
});
}
/**
* Set comp, which is a comparator function used for sorting and
* inserting comments into the list.
*/
function setComparator() {
// If the first three letters are "asc", sort in ascending order
// and remove the prefix.
if (by.substring(0,3) == 'asc') {
var i = by.substring(3);
comp = function(a, b) { return a[i] - b[i]; };
} else {
// Otherwise sort in descending order.
comp = function(a, b) { return b[by] - a[by]; };
}
// Reset link styles and format the selected sort option.
$('a.sel').attr('href', '#').removeClass('sel');
$('a.by' + by).removeAttr('href').addClass('sel');
}
/**
* Create a comp function. If the user has preferences stored in
* the sortBy cookie, use those, otherwise use the default.
*/
function initComparator() {
by = 'rating'; // Default to sort by rating.
// If the sortBy cookie is set, use that instead.
if (document.cookie.length > 0) {
var start = document.cookie.indexOf('sortBy=');
if (start != -1) {
start = start + 7;
var end = document.cookie.indexOf(";", start);
if (end == -1) {
end = document.cookie.length;
by = unescape(document.cookie.substring(start, end));
}
}
}
setComparator();
}
/**
* Show a comment div.
*/
function show(id) {
$('#ao' + id).hide();
$('#ah' + id).show();
var context = $.extend({id: id}, opts);
var popup = $(renderTemplate(popupTemplate, context)).hide();
popup.find('textarea[name="proposal"]').hide();
popup.find('a.by' + by).addClass('sel');
var form = popup.find('#cf' + id);
form.submit(function(event) {
event.preventDefault();
addComment(form);
});
$('#s' + id).after(popup);
popup.slideDown('fast', function() {
getComments(id);
});
}
/**
* Hide a comment div.
*/
function hide(id) {
$('#ah' + id).hide();
$('#ao' + id).show();
var div = $('#sc' + id);
div.slideUp('fast', function() {
div.remove();
});
}
/**
* Perform an ajax request to get comments for a node
* and insert the comments into the comments tree.
*/
function getComments(id) {
$.ajax({
type: 'GET',
url: opts.getCommentsURL,
data: {node: id},
success: function(data, textStatus, request) {
var ul = $('#cl' + id);
var speed = 100;
$('#cf' + id)
.find('textarea[name="proposal"]')
.data('source', data.source);
if (data.comments.length === 0) {
ul.html('No comments yet. ');
ul.data('empty', true);
} else {
// If there are comments, sort them and put them in the list.
var comments = sortComments(data.comments);
speed = data.comments.length * 100;
appendComments(comments, ul);
ul.data('empty', false);
}
$('#cn' + id).slideUp(speed + 200);
ul.slideDown(speed);
},
error: function(request, textStatus, error) {
showError('Oops, there was a problem retrieving the comments.');
},
dataType: 'json'
});
}
/**
* Add a comment via ajax and insert the comment into the comment tree.
*/
function addComment(form) {
var node_id = form.find('input[name="node"]').val();
var parent_id = form.find('input[name="parent"]').val();
var text = form.find('textarea[name="comment"]').val();
var proposal = form.find('textarea[name="proposal"]').val();
if (text == '') {
showError('Please enter a comment.');
return;
}
// Disable the form that is being submitted.
form.find('textarea,input').attr('disabled', 'disabled');
// Send the comment to the server.
$.ajax({
type: "POST",
url: opts.addCommentURL,
dataType: 'json',
data: {
node: node_id,
parent: parent_id,
text: text,
proposal: proposal
},
success: function(data, textStatus, error) {
// Reset the form.
if (node_id) {
hideProposeChange(node_id);
}
form.find('textarea')
.val('')
.add(form.find('input'))
.removeAttr('disabled');
var ul = $('#cl' + (node_id || parent_id));
if (ul.data('empty')) {
$(ul).empty();
ul.data('empty', false);
}
insertComment(data.comment);
var ao = $('#ao' + node_id);
ao.find('img').attr({'src': opts.commentBrightImage});
if (node_id) {
// if this was a "root" comment, remove the commenting box
// (the user can get it back by reopening the comment popup)
$('#ca' + node_id).slideUp();
}
},
error: function(request, textStatus, error) {
form.find('textarea,input').removeAttr('disabled');
showError('Oops, there was a problem adding the comment.');
}
});
}
/**
* Recursively append comments to the main comment list and children
* lists, creating the comment tree.
*/
function appendComments(comments, ul) {
$.each(comments, function() {
var div = createCommentDiv(this);
ul.append($(document.createElement('li')).html(div));
appendComments(this.children, div.find('ul.comment-children'));
// To avoid stagnating data, don't store the comments children in data.
this.children = null;
div.data('comment', this);
});
}
/**
* After adding a new comment, it must be inserted in the correct
* location in the comment tree.
*/
function insertComment(comment) {
var div = createCommentDiv(comment);
// To avoid stagnating data, don't store the comments children in data.
comment.children = null;
div.data('comment', comment);
var ul = $('#cl' + (comment.node || comment.parent));
var siblings = getChildren(ul);
var li = $(document.createElement('li'));
li.hide();
// Determine where in the parents children list to insert this comment.
for(i=0; i < siblings.length; i++) {
if (comp(comment, siblings[i]) <= 0) {
$('#cd' + siblings[i].id)
.parent()
.before(li.html(div));
li.slideDown('fast');
return;
}
}
// If we get here, this comment rates lower than all the others,
// or it is the only comment in the list.
ul.append(li.html(div));
li.slideDown('fast');
}
function acceptComment(id) {
$.ajax({
type: 'POST',
url: opts.acceptCommentURL,
data: {id: id},
success: function(data, textStatus, request) {
$('#cm' + id).fadeOut('fast');
$('#cd' + id).removeClass('moderate');
},
error: function(request, textStatus, error) {
showError('Oops, there was a problem accepting the comment.');
}
});
}
function deleteComment(id) {
$.ajax({
type: 'POST',
url: opts.deleteCommentURL,
data: {id: id},
success: function(data, textStatus, request) {
var div = $('#cd' + id);
if (data == 'delete') {
// Moderator mode: remove the comment and all children immediately
div.slideUp('fast', function() {
div.remove();
});
return;
}
// User mode: only mark the comment as deleted
div
.find('span.user-id:first')
.text('[deleted]').end()
.find('div.comment-text:first')
.text('[deleted]').end()
.find('#cm' + id + ', #dc' + id + ', #ac' + id + ', #rc' + id +
', #sp' + id + ', #hp' + id + ', #cr' + id + ', #rl' + id)
.remove();
var comment = div.data('comment');
comment.username = '[deleted]';
comment.text = '[deleted]';
div.data('comment', comment);
},
error: function(request, textStatus, error) {
showError('Oops, there was a problem deleting the comment.');
}
});
}
function showProposal(id) {
$('#sp' + id).hide();
$('#hp' + id).show();
$('#pr' + id).slideDown('fast');
}
function hideProposal(id) {
$('#hp' + id).hide();
$('#sp' + id).show();
$('#pr' + id).slideUp('fast');
}
function showProposeChange(id) {
$('#pc' + id).hide();
$('#hc' + id).show();
var textarea = $('#pt' + id);
textarea.val(textarea.data('source'));
$.fn.autogrow.resize(textarea[0]);
textarea.slideDown('fast');
}
function hideProposeChange(id) {
$('#hc' + id).hide();
$('#pc' + id).show();
var textarea = $('#pt' + id);
textarea.val('').removeAttr('disabled');
textarea.slideUp('fast');
}
function toggleCommentMarkupBox(id) {
$('#mb' + id).toggle();
}
/** Handle when the user clicks on a sort by link. */
function handleReSort(link) {
var classes = link.attr('class').split(/\s+/);
for (var i=0; iThank you! Your comment will show up '
+ 'once it is has been approved by a moderator.');
}
// Prettify the comment rating.
comment.pretty_rating = comment.rating + ' point' +
(comment.rating == 1 ? '' : 's');
// Make a class (for displaying not yet moderated comments differently)
comment.css_class = comment.displayed ? '' : ' moderate';
// Create a div for this comment.
var context = $.extend({}, opts, comment);
var div = $(renderTemplate(commentTemplate, context));
// If the user has voted on this comment, highlight the correct arrow.
if (comment.vote) {
var direction = (comment.vote == 1) ? 'u' : 'd';
div.find('#' + direction + 'v' + comment.id).hide();
div.find('#' + direction + 'u' + comment.id).show();
}
if (opts.moderator || comment.text != '[deleted]') {
div.find('a.reply').show();
if (comment.proposal_diff)
div.find('#sp' + comment.id).show();
if (opts.moderator && !comment.displayed)
div.find('#cm' + comment.id).show();
if (opts.moderator || (opts.username == comment.username))
div.find('#dc' + comment.id).show();
}
return div;
}
/**
* A simple template renderer. Placeholders such as <%id%> are replaced
* by context['id'] with items being escaped. Placeholders such as <#id#>
* are not escaped.
*/
function renderTemplate(template, context) {
var esc = $(document.createElement('div'));
function handle(ph, escape) {
var cur = context;
$.each(ph.split('.'), function() {
cur = cur[this];
});
return escape ? esc.text(cur || "").html() : cur;
}
return template.replace(/<([%#])([\w\.]*)\1>/g, function() {
return handle(arguments[2], arguments[1] == '%' ? true : false);
});
}
/** Flash an error message briefly. */
function showError(message) {
$(document.createElement('div')).attr({'class': 'popup-error'})
.append($(document.createElement('div'))
.attr({'class': 'error-message'}).text(message))
.appendTo('body')
.fadeIn("slow")
.delay(2000)
.fadeOut("slow");
}
/** Add a link the user uses to open the comments popup. */
$.fn.comment = function() {
return this.each(function() {
var id = $(this).attr('id').substring(1);
var count = COMMENT_METADATA[id];
var title = count + ' comment' + (count == 1 ? '' : 's');
var image = count > 0 ? opts.commentBrightImage : opts.commentImage;
var addcls = count == 0 ? ' nocomment' : '';
$(this)
.append(
$(document.createElement('a')).attr({
href: '#',
'class': 'sphinx-comment-open' + addcls,
id: 'ao' + id
})
.append($(document.createElement('img')).attr({
src: image,
alt: 'comment',
title: title
}))
.click(function(event) {
event.preventDefault();
show($(this).attr('id').substring(2));
})
)
.append(
$(document.createElement('a')).attr({
href: '#',
'class': 'sphinx-comment-close hidden',
id: 'ah' + id
})
.append($(document.createElement('img')).attr({
src: opts.closeCommentImage,
alt: 'close',
title: 'close'
}))
.click(function(event) {
event.preventDefault();
hide($(this).attr('id').substring(2));
})
);
});
};
var opts = {
processVoteURL: '/_process_vote',
addCommentURL: '/_add_comment',
getCommentsURL: '/_get_comments',
acceptCommentURL: '/_accept_comment',
deleteCommentURL: '/_delete_comment',
commentImage: '/static/_static/comment.png',
closeCommentImage: '/static/_static/comment-close.png',
loadingImage: '/static/_static/ajax-loader.gif',
commentBrightImage: '/static/_static/comment-bright.png',
upArrow: '/static/_static/up.png',
downArrow: '/static/_static/down.png',
upArrowPressed: '/static/_static/up-pressed.png',
downArrowPressed: '/static/_static/down-pressed.png',
voting: false,
moderator: false
};
if (typeof COMMENT_OPTIONS != "undefined") {
opts = jQuery.extend(opts, COMMENT_OPTIONS);
}
var popupTemplate = '\
';
var commentTemplate = '\
\
';
var replyTemplate = '\
\
\
\
\
';
$(document).ready(function() {
init();
});
})(jQuery);
$(document).ready(function() {
// add comment anchors for all paragraphs that are commentable
$('.sphinx-has-comment').comment();
// highlight search words in search results
$("div.context").each(function() {
var params = $.getQueryParameters();
var terms = (params.q) ? params.q[0].split(/\s+/) : [];
var result = $(this);
$.each(terms, function() {
result.highlightText(this.toLowerCase(), 'highlighted');
});
});
// directly open comment window if requested
var anchor = document.location.hash;
if (anchor.substring(0, 9) == '#comment-') {
$('#ao' + anchor.substring(9)).click();
document.location.hash = '#s' + anchor.substring(9);
}
});
PK jHO*v *v jsl-stable/_static/jquery.js/*! jQuery v1.11.1 | (c) 2005, 2014 jQuery Foundation, Inc. | jquery.org/license */
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