import os, logging |
import os |
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import logging |
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from pylons import tmpl_context as c |
from ckan.authz import Authorizer |
from ckan.authz import Authorizer |
import ckan.logic.action.create as create |
from ckan.logic.converters import convert_to_extras,\ |
import ckan.logic.action.update as update |
convert_from_extras, convert_to_tags, convert_from_tags, free_tags_only |
import ckan.logic.action.get as get |
from ckan.logic import get_action, NotFound |
from ckan.logic.converters import date_to_db, date_to_form, convert_to_extras, convert_from_extras |
from ckan.logic.schema import package_form_schema, group_form_schema |
from ckan.logic import NotFound, NotAuthorized, ValidationError |
from ckan.lib.base import c, model |
from ckan.logic import tuplize_dict, clean_dict, parse_params |
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import ckan.logic.schema as default_schema |
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from ckan.logic.schema import group_form_schema |
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from ckan.logic.schema import package_form_schema |
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import ckan.logic.validators as val |
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from ckan.lib.base import BaseController, render, c, model, abort, request |
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from ckan.lib.base import redirect, _, config, h |
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from ckan.lib.package_saver import PackageSaver |
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from ckan.lib.field_types import DateType, DateConvertError |
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from ckan.lib.navl.dictization_functions import Invalid |
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from ckan.lib.navl.dictization_functions import validate, missing |
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from ckan.lib.navl.dictization_functions import DataError, flatten_dict, unflatten |
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from ckan.plugins import IDatasetForm, IGroupForm, IConfigurer |
from ckan.plugins import IDatasetForm, IGroupForm, IConfigurer |
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from ckan.plugins import IGenshiStreamFilter |
from ckan.plugins import implements, SingletonPlugin |
from ckan.plugins import implements, SingletonPlugin |
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from ckan.lib.navl.validators import ignore_missing, keep_extras |
from ckan.lib.navl.validators import (ignore_missing, |
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not_empty, |
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empty, |
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ignore, |
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keep_extras, |
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) |
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log = logging.getLogger(__name__) |
log = logging.getLogger(__name__) |
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GENRE_VOCAB = u'genre_vocab' |
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COMPOSER_VOCAB = u'composer_vocab' |
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class ExampleGroupForm(SingletonPlugin): |
class ExampleGroupForm(SingletonPlugin): |
"""This plugin demonstrates how a class packaged as a CKAN |
"""This plugin demonstrates how a class packaged as a CKAN |
extension might extend CKAN behaviour by providing custom forms |
extension might extend CKAN behaviour by providing custom forms |
based on the type of a Group. |
based on the type of a Group. |
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In this case, we implement two extension interfaces to provide custom |
In this case, we implement two extension interfaces to provide custom |
forms for specific types of group. |
forms for specific types of group. |
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- ``IConfigurer`` allows us to override configuration normally |
- ``IConfigurer`` allows us to override configuration normally |
found in the ``ini``-file. Here we use it to specify where the |
found in the ``ini``-file. Here we use it to specify where the |
form templates can be found. |
form templates can be found. |
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- ``IGroupForm`` allows us to provide a custom form for a dataset |
- ``IGroupForm`` allows us to provide a custom form for a dataset |
based on the 'type' that may be set for a group. Where the |
based on the 'type' that may be set for a group. Where the |
'type' matches one of the values in group_types then this |
'type' matches one of the values in group_types then this |
class will be used. |
class will be used. |
""" |
""" |
implements(IGroupForm, inherit=True) |
implements(IGroupForm, inherit=True) |
implements(IConfigurer, inherit=True) |
implements(IConfigurer, inherit=True) |
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def update_config(self, config): |
def update_config(self, config): |
""" |
""" |
This IConfigurer implementation causes CKAN to look in the |
This IConfigurer implementation causes CKAN to look in the |
```templates``` directory when looking for the group_form() |
```templates``` directory when looking for the group_form() |
""" |
""" |
here = os.path.dirname(__file__) |
here = os.path.dirname(__file__) |
rootdir = os.path.dirname(os.path.dirname(here)) |
rootdir = os.path.dirname(os.path.dirname(here)) |
template_dir = os.path.join(rootdir, 'ckanext', |
template_dir = os.path.join(rootdir, 'ckanext', |
'example', 'theme', 'templates') |
'example', 'theme', 'templates') |
config['extra_template_paths'] = ','.join([template_dir, |
config['extra_template_paths'] = ','.join([template_dir, |
config.get('extra_template_paths', '')]) |
config.get('extra_template_paths', '')]) |
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def group_form(self): |
def group_form(self): |
""" |
""" |
Returns a string representing the location of the template to be |
Returns a string representing the location of the template to be |
rendered. e.g. "forms/group_form.html". |
rendered. e.g. "forms/group_form.html". |
""" |
""" |
return 'forms/group_form.html' |
return 'forms/group_form.html' |
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def group_types(self): |
def group_types(self): |
""" |
""" |
Returns an iterable of group type strings. |
Returns an iterable of group type strings. |
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If a request involving a group of one of those types is made, then |
If a request involving a group of one of those types is made, then |
this plugin instance will be delegated to. |
this plugin instance will be delegated to. |
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There must only be one plugin registered to each group type. Any |
There must only be one plugin registered to each group type. Any |
attempts to register more than one plugin instance to a given group |
attempts to register more than one plugin instance to a given group |
type will raise an exception at startup. |
type will raise an exception at startup. |
""" |
""" |
return ["testgroup"] |
return ["testgroup"] |
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def is_fallback(self): |
def is_fallback(self): |
""" |
""" |
Returns true iff this provides the fallback behaviour, when no other |
Returns true iff this provides the fallback behaviour, when no other |
plugin instance matches a group's type. |
plugin instance matches a group's type. |
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As this is not the fallback controller we should return False. If |
As this is not the fallback controller we should return False. If |
we were wanting to act as the fallback, we'd return True |
we were wanting to act as the fallback, we'd return True |
""" |
""" |
return False |
return False |
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def form_to_db_schema(self): |
def form_to_db_schema(self): |
""" |
""" |
Returns the schema for mapping group data from a form to a format |
Returns the schema for mapping group data from a form to a format |
suitable for the database. |
suitable for the database. |
""" |
""" |
return group_form_schema() |
return group_form_schema() |
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def db_to_form_schema(self): |
def db_to_form_schema(self): |
""" |
""" |
Returns the schema for mapping group data from the database into a |
Returns the schema for mapping group data from the database into a |
format suitable for the form (optional) |
format suitable for the form (optional) |
""" |
""" |
return {} |
return {} |
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def check_data_dict(self, data_dict): |
def check_data_dict(self, data_dict): |
""" |
""" |
Check if the return data is correct. |
Check if the return data is correct. |
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raise a DataError if not. |
raise a DataError if not. |
""" |
""" |
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def setup_template_variables(self, context, data_dict): |
def setup_template_variables(self, context, data_dict): |
""" |
""" |
Add variables to c just prior to the template being rendered. |
Add variables to c just prior to the template being rendered. |
""" |
""" |
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class ExampleDatasetForm(SingletonPlugin): |
class ExampleDatasetForm(SingletonPlugin): |
"""This plugin demonstrates how a theme packaged as a CKAN |
"""This plugin demonstrates how a theme packaged as a CKAN |
extension might extend CKAN behaviour. |
extension might extend CKAN behaviour. |
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In this case, we implement three extension interfaces: |
In this case, we implement three extension interfaces: |
|
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- ``IConfigurer`` allows us to override configuration normally |
- ``IConfigurer`` allows us to override configuration normally |
found in the ``ini``-file. Here we use it to specify where the |
found in the ``ini``-file. Here we use it to specify where the |
form templates can be found. |
form templates can be found. |
- ``IDatasetForm`` allows us to provide a custom form for a dataset |
- ``IDatasetForm`` allows us to provide a custom form for a dataset |
based on the type_name that may be set for a package. Where the |
based on the type_name that may be set for a package. Where the |
type_name matches one of the values in package_types then this |
type_name matches one of the values in package_types then this |
class will be used. |
class will be used. |
""" |
""" |
implements(IDatasetForm, inherit=True) |
implements(IDatasetForm, inherit=True) |
implements(IConfigurer, inherit=True) |
implements(IConfigurer, inherit=True) |
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implements(IGenshiStreamFilter, inherit=True) |
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def update_config(self, config): |
def update_config(self, config): |
""" |
""" |
This IConfigurer implementation causes CKAN to look in the |
This IConfigurer implementation causes CKAN to look in the |
```templates``` directory when looking for the package_form() |
```templates``` directory when looking for the package_form() |
""" |
""" |
here = os.path.dirname(__file__) |
here = os.path.dirname(__file__) |
rootdir = os.path.dirname(os.path.dirname(here)) |
rootdir = os.path.dirname(os.path.dirname(here)) |
template_dir = os.path.join(rootdir, 'ckanext', |
template_dir = os.path.join(rootdir, 'ckanext', |
'example', 'theme', 'templates') |
'example', 'theme', 'templates') |
config['extra_template_paths'] = ','.join([template_dir, |
config['extra_template_paths'] = ','.join([template_dir, |
config.get('extra_template_paths', '')]) |
config.get('extra_template_paths', '')]) |
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def package_form(self): |
def package_form(self): |
""" |
""" |
Returns a string representing the location of the template to be |
Returns a string representing the location of the template to be |
rendered. e.g. "package/new_package_form.html". |
rendered. e.g. "package/new_package_form.html". |
""" |
""" |
return 'forms/dataset_form.html' |
return 'forms/dataset_form.html' |
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def is_fallback(self): |
def is_fallback(self): |
""" |
""" |
Returns true iff this provides the fallback behaviour, when no other |
Returns true iff this provides the fallback behaviour, when no other |
plugin instance matches a package's type. |
plugin instance matches a package's type. |
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As this is not the fallback controller we should return False. If |
As this is not the fallback controller we should return False. If |