我想在我的插件中覆蓋ckan的URL驗證器。我按照教程(https://github.com/ckan/ckan/tree/master/ckanext/example_idatasetform)和我的插件是這樣的:覆蓋CKAN中的URL驗證器
import logging
import ckan.plugins as plugins
import ckan.plugins.toolkit as toolkit
def custom_url_validator(key, data, errors, context):
''' Checks that the provided value is a valid URL '''
import urlparse
import string
model = context['model']
session = context['session']
url = data.get(key, None)
if not url:
return
pieces = urlparse.urlparse(url)
if all([pieces.scheme, pieces.netloc]) and \
set(pieces.netloc) <= set(string.letters + string.digits + '-.:') and \
pieces.scheme in ['http', 'https']:
return
errors[key].append(_('Custom: Please provide a valid URL'))
class MyPlugin(plugins.SingletonPlugin, toolkit.DefaultDatasetForm):
plugins.implements(plugins.IConfigurer)
plugins.implements(plugins.IDatasetForm)
# IConfigurer
def update_config(self, config_):
toolkit.add_template_directory(config_, 'templates')
toolkit.add_public_directory(config_, 'public')
""" Redefine if this plugin is a default fallback"""
def is_fallback(self):
# Return True to register this plugin as the default handler for
# package types not handled by any other IDatasetForm plugin.
return True
""" Define package types this plugin should be used for has to overwritten because of TODO"""
def package_types(self):
# This plugin doesn't handle any special package types, it just
# registers itself as the default (above).
return []
def _modify_package_schema(self, schema):
schema.update({
# Custom extras
'image_url':[toolkit.get_validator('ignore_missing'), unicode, custom_url_validator]
})
schema.update({
# Custom extras
'url':[toolkit.get_validator('ignore_missing'), unicode, custom_url_validator]
})
return schema
def create_package_schema(self):
schema = super(MyPlugin, self).create_package_schema()
schema = self._modify_package_schema(schema)
return schema
def update_package_schema(self):
schema = super(MyPlugin, self).update_package_schema()
schema = self._modify_package_schema(schema)
return schema
def show_package_schema(self):
schema = super(MyPlugin, self).show_package_schema()
schema.update({
# Custom extras
# Yes, we really do need validators on show, or CKAN crashes
'image_url':[toolkit.get_validator('ignore_missing'), unicode, custom_url_validator]
})
schema.update({
# Custom extras
# Yes, we really do need validators on show, or CKAN crashes
'url':[toolkit.get_validator('ignore_missing'), unicode, custom_url_validator]
})
return schema
我沒有得到這個工作。我還需要做點別的嗎?
另外,你認爲造成這種變化CKAN,每個人的利益? –
如果你調試它,它有多遠?您的插件是否啓用?修改後的模式是否註冊?驗證器是否被調用?你如何創建一個數據集? API或表單? –
我試圖通過CKAN API 3(related_create)創建一個相關的。插件已啓用,因爲其他事情正在工作。驗證程序未被調用(我打印日誌但未顯示)。 – intropedro