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model_save.py
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model_save.py
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# encoding: utf-8
import datetime
import uuid
import logging
from sqlalchemy.orm import class_mapper
from six import string_types
import ckan.lib.dictization as d
import ckan.lib.helpers as h
import ckan.authz as authz
log = logging.getLogger(__name__)
def resource_dict_save(res_dict, context):
model = context["model"]
session = context["session"]
id = res_dict.get("id")
obj = None
if id:
obj = session.query(model.Resource).get(id)
if not obj:
new = True
obj = model.Resource()
else:
new = False
table = class_mapper(model.Resource).mapped_table
fields = [field.name for field in table.c]
# Strip the full url for resources of type 'upload'
if res_dict.get('url') and res_dict.get('url_type') == u'upload':
res_dict['url'] = res_dict['url'].rsplit('/')[-1]
# Resource extras not submitted will be removed from the existing extras
# dict
new_extras = {}
for key, value in res_dict.iteritems():
if isinstance(value, list):
continue
if key in ('extras', 'revision_timestamp', 'tracking_summary'):
continue
if key in fields:
if isinstance(getattr(obj, key), datetime.datetime):
if getattr(obj, key).isoformat() == value:
continue
if key == 'last_modified' and not new:
obj.url_changed = True
if key == 'url' and not new and obj.url != value:
obj.url_changed = True
setattr(obj, key, value)
else:
# resources save extras directly onto the object, instead
# of in a separate extras field like packages and groups
new_extras[key] = value
obj.state = u'active'
obj.extras = new_extras
session.add(obj)
return obj
def package_resource_list_save(res_dicts, package, context):
allow_partial_update = context.get("allow_partial_update", False)
if res_dicts is None and allow_partial_update:
return
resource_list = package.resources_all
old_list = package.resources_all[:]
obj_list = []
for res_dict in res_dicts or []:
if not u'package_id' in res_dict or not res_dict[u'package_id']:
res_dict[u'package_id'] = package.id
obj = resource_dict_save(res_dict, context)
obj_list.append(obj)
# Set the package's resources. resource_list is an ORM relation - the
# package's resources. If we didn't have the slice operator "[:]" then it
# would reassign the variable "resource_list" to be the obj_list. But with
# the slice operator it changes the contents of the relation, setting the
# package's resources.
# At the table level, for each resource in the obj_list, its
# resource.package_id is changed to this package (which is needed for new
# resources), and every resource.position is set to ascending integers,
# according to their ordering in the obj_list.
resource_list[:] = obj_list
# Mark any left-over resources as deleted
for resource in set(old_list) - set(obj_list):
resource.state = 'deleted'
resource_list.append(resource)
def package_extras_save(extra_dicts, obj, context):
allow_partial_update = context.get("allow_partial_update", False)
if extra_dicts is None and allow_partial_update:
return
model = context["model"]
session = context["session"]
extras_list = obj.extras_list
old_extras = dict((extra.key, extra) for extra in extras_list)
new_extras = {}
for extra_dict in extra_dicts or []:
if extra_dict.get("deleted"):
continue
if extra_dict['value'] is None:
pass
else:
new_extras[extra_dict["key"]] = extra_dict["value"]
#new
for key in set(new_extras.keys()) - set(old_extras.keys()):
state = 'active'
extra = model.PackageExtra(state=state, key=key, value=new_extras[key])
session.add(extra)
extras_list.append(extra)
#changed
for key in set(new_extras.keys()) & set(old_extras.keys()):
extra = old_extras[key]
if new_extras[key] == extra.value and extra.state != 'deleted':
continue
state = 'active'
extra.value = new_extras[key]
extra.state = state
session.add(extra)
#deleted
for key in set(old_extras.keys()) - set(new_extras.keys()):
extra = old_extras[key]
if extra.state == 'deleted':
continue
state = 'deleted'
extra.state = state
def package_tag_list_save(tag_dicts, package, context):
allow_partial_update = context.get("allow_partial_update", False)
if tag_dicts is None and allow_partial_update:
return
model = context["model"]
session = context["session"]
tag_package_tag = dict((package_tag.tag, package_tag)
for package_tag in
package.package_tag_all)
tag_package_tag_inactive = {tag: pt for tag,pt in tag_package_tag.items() if
pt.state in ['deleted']}
tag_name_vocab = set()
tags = set()
for tag_dict in tag_dicts or []:
if (tag_dict.get('name'), tag_dict.get('vocabulary_id')) not in tag_name_vocab:
tag_obj = d.table_dict_save(tag_dict, model.Tag, context)
tags.add(tag_obj)
tag_name_vocab.add((tag_obj.name, tag_obj.vocabulary_id))
# 3 cases
# case 1: currently active but not in new list
for tag in set(tag_package_tag.keys()) - tags:
package_tag = tag_package_tag[tag]
package_tag.state = 'deleted'
# case 2: in new list but never used before
for tag in tags - set(tag_package_tag.keys()):
state = 'active'
package_tag_obj = model.PackageTag(package, tag, state)
session.add(package_tag_obj)
tag_package_tag[tag] = package_tag_obj
# case 3: in new list and already used but in deleted state
for tag in tags.intersection(set(tag_package_tag_inactive.keys())):
state = 'active'
package_tag = tag_package_tag[tag]
package_tag.state = state
package.package_tag_all[:] = tag_package_tag.values()
def package_membership_list_save(group_dicts, package, context):
allow_partial_update = context.get("allow_partial_update", False)
if group_dicts is None and allow_partial_update:
return
capacity = 'public'
model = context["model"]
session = context["session"]
user = context.get('user')
members = session.query(model.Member) \
.filter(model.Member.table_id == package.id) \
.filter(model.Member.capacity != 'organization')
group_member = dict((member.group, member)
for member in
members)
groups = set()
for group_dict in group_dicts or []:
id = group_dict.get("id")
name = group_dict.get("name")
capacity = group_dict.get("capacity", "public")
if capacity == 'organization':
continue
if id:
group = session.query(model.Group).get(id)
else:
group = session.query(model.Group).filter_by(name=name).first()
if group:
groups.add(group)
## need to flush so we can get out the package id
model.Session.flush()
# Remove any groups we are no longer in
for group in set(group_member.keys()) - groups:
member_obj = group_member[group]
if member_obj and member_obj.state == 'deleted':
continue
if authz.has_user_permission_for_group_or_org(
member_obj.group_id, user, 'read'):
member_obj.capacity = capacity
member_obj.state = 'deleted'
session.add(member_obj)
# Add any new groups
for group in groups:
member_obj = group_member.get(group)
if member_obj and member_obj.state == 'active':
continue
if authz.has_user_permission_for_group_or_org(
group.id, user, 'read'):
member_obj = group_member.get(group)
if member_obj:
member_obj.capacity = capacity
member_obj.state = 'active'
else:
member_obj = model.Member(table_id=package.id,
table_name='package',
group=group,
capacity=capacity,
group_id=group.id,
state = 'active')
session.add(member_obj)
def relationship_list_save(relationship_dicts, package, attr, context):
allow_partial_update = context.get("allow_partial_update", False)
if relationship_dicts is None and allow_partial_update:
return
model = context["model"]
session = context["session"]
relationship_list = getattr(package, attr)
old_list = relationship_list[:]
relationships = []
for relationship_dict in relationship_dicts or []:
obj = d.table_dict_save(relationship_dict,
model.PackageRelationship, context)
relationships.append(obj)
relationship_list[:] = relationships
for relationship in set(old_list) - set(relationship_list):
relationship.state = 'deleted'
relationship_list.append(relationship)
def package_dict_save(pkg_dict, context):
model = context["model"]
package = context.get("package")
allow_partial_update = context.get("allow_partial_update", False)
if package:
pkg_dict["id"] = package.id
Package = model.Package
if 'metadata_created' in pkg_dict:
del pkg_dict['metadata_created']
if 'metadata_modified' in pkg_dict:
del pkg_dict['metadata_modified']
pkg = d.table_dict_save(pkg_dict, Package, context)
if not pkg.id:
pkg.id = str(uuid.uuid4())
package_resource_list_save(pkg_dict.get("resources"), pkg, context)
package_tag_list_save(pkg_dict.get("tags"), pkg, context)
package_membership_list_save(pkg_dict.get("groups"), pkg, context)
# relationships are not considered 'part' of the package, so only
# process this if the key is provided
if 'relationships_as_subject' in pkg_dict:
subjects = pkg_dict.get('relationships_as_subject')
relationship_list_save(subjects, pkg, 'relationships_as_subject', context)
if 'relationships_as_object' in pkg_dict:
objects = pkg_dict.get('relationships_as_object')
relationship_list_save(objects, pkg, 'relationships_as_object', context)
extras = package_extras_save(pkg_dict.get("extras"), pkg, context)
return pkg
def group_member_save(context, group_dict, member_table_name):
model = context["model"]
session = context["session"]
group = context['group']
entity_list = group_dict.get(member_table_name, None)
if entity_list is None:
if context.get('allow_partial_update', False):
return {'added': [], 'removed': []}
else:
entity_list = []
entities = {}
Member = model.Member
classname = member_table_name[:-1].capitalize()
if classname == 'Organization':
# Organizations use the model.Group class
classname = 'Group'
ModelClass = getattr(model, classname)
for entity_dict in entity_list:
name_or_id = entity_dict.get('id') or entity_dict.get('name')
obj = ModelClass.get(name_or_id)
if obj and obj not in entities.values():
entities[(obj.id, entity_dict.get('capacity', 'public'))] = obj
members = session.query(Member).filter_by(
table_name=member_table_name[:-1],
group_id=group.id,
).all()
processed = {
'added': [],
'removed': []
}
entity_member = dict(((member.table_id, member.capacity), member) for member in members)
for entity_id in set(entity_member.keys()) - set(entities.keys()):
if entity_member[entity_id].state != 'deleted':
processed['removed'].append(entity_id[0])
entity_member[entity_id].state = 'deleted'
session.add(entity_member[entity_id])
for entity_id in set(entity_member.keys()) & set(entities.keys()):
if entity_member[entity_id].state != 'active':
processed['added'].append(entity_id[0])
entity_member[entity_id].state = 'active'
session.add(entity_member[entity_id])
for entity_id in set(entities.keys()) - set(entity_member.keys()):
member = Member(group=group, group_id=group.id, table_id=entity_id[0],
table_name=member_table_name[:-1],
capacity=entity_id[1])
processed['added'].append(entity_id[0])
session.add(member)
return processed
def group_dict_save(group_dict, context, prevent_packages_update=False):
from ckan.lib.search import rebuild
model = context["model"]
session = context["session"]
group = context.get("group")
allow_partial_update = context.get("allow_partial_update", False)
Group = model.Group
if group:
group_dict["id"] = group.id
group = d.table_dict_save(group_dict, Group, context)
if not group.id:
group.id = str(uuid.uuid4())
context['group'] = group
# Under the new org rules we do not want to be able to update datasets
# via group edit so we need a way to prevent this. It may be more
# sensible in future to send a list of allowed/disallowed updates for
# groups, users, tabs etc.
if not prevent_packages_update:
pkgs_edited = group_member_save(context, group_dict, 'packages')
else:
pkgs_edited = {
'added': [],
'removed': []
}
group_users_changed = group_member_save(context, group_dict, 'users')
group_groups_changed = group_member_save(context, group_dict, 'groups')
group_tags_changed = group_member_save(context, group_dict, 'tags')
log.debug('Group save membership changes - Packages: %r Users: %r '
'Groups: %r Tags: %r', pkgs_edited, group_users_changed,
group_groups_changed, group_tags_changed)
extras = group_dict.get("extras", [])
new_extras = {i['key'] for i in extras}
if extras:
old_extras = group.extras
for key in set(old_extras) - new_extras:
del group.extras[key]
for x in extras:
if 'deleted' in x and x['key'] in old_extras:
del group.extras[x['key']]
continue
group.extras[x['key']] = x['value']
# We will get a list of packages that we have either added or
# removed from the group, and trigger a re-index.
package_ids = pkgs_edited['removed']
package_ids.extend( pkgs_edited['added'] )
if package_ids:
session.commit()
map( rebuild, package_ids )
return group
def user_dict_save(user_dict, context):
model = context['model']
session = context['session']
user = context.get('user_obj')
User = model.User
if user:
user_dict['id'] = user.id
if 'password' in user_dict and not len(user_dict['password']):
del user_dict['password']
user = d.table_dict_save(user_dict, User, context)
return user
def package_api_to_dict(api1_dict, context):
package = context.get("package")
api_version = context.get('api_version')
assert api_version, 'No api_version supplied in context'
dictized = {}
for key, value in api1_dict.iteritems():
new_value = value
if key == 'tags':
if isinstance(value, string_types):
new_value = [{"name": item} for item in value.split()]
else:
new_value = [{"name": item} for item in value]
if key == 'extras':
updated_extras = {}
if package:
updated_extras.update(package.extras)
updated_extras.update(value)
new_value = []
for extras_key, extras_value in updated_extras.iteritems():
new_value.append({"key": extras_key,
"value": extras_value})
if key == 'groups' and len(value):
if api_version == 1:
new_value = [{'name': item} for item in value]
else:
new_value = [{'id': item} for item in value]
dictized[key] = new_value
download_url = dictized.pop('download_url', None)
if download_url and not dictized.get('resources'):
dictized["resources"] = [{'url': download_url}]
download_url = dictized.pop('download_url', None)
return dictized
def group_api_to_dict(api1_dict, context):
dictized = {}
for key, value in api1_dict.iteritems():
new_value = value
if key == 'packages':
new_value = [{"id": item} for item in value]
if key == 'extras':
new_value = [{"key": extra_key, "value": value[extra_key]}
for extra_key in value]
dictized[key] = new_value
return dictized
def task_status_dict_save(task_status_dict, context):
model = context["model"]
task_status = context.get("task_status")
allow_partial_update = context.get("allow_partial_update", False)
if task_status:
task_status_dict["id"] = task_status.id
task_status = d.table_dict_save(task_status_dict, model.TaskStatus, context)
return task_status
def activity_dict_save(activity_dict, context):
model = context['model']
session = context['session']
user_id = activity_dict['user_id']
object_id = activity_dict['object_id']
revision_id = activity_dict['revision_id']
activity_type = activity_dict['activity_type']
if activity_dict.has_key('data'):
data = activity_dict['data']
else:
data = None
activity_obj = model.Activity(user_id, object_id, revision_id,
activity_type, data)
session.add(activity_obj)
# TODO: Handle activity details.
return activity_obj
def vocabulary_tag_list_save(new_tag_dicts, vocabulary_obj, context):
model = context['model']
session = context['session']
# First delete any tags not in new_tag_dicts.
for tag in vocabulary_obj.tags:
if tag.name not in [t['name'] for t in new_tag_dicts]:
tag.delete()
# Now add any new tags.
for tag_dict in new_tag_dicts:
current_tag_names = [tag.name for tag in vocabulary_obj.tags]
if tag_dict['name'] not in current_tag_names:
# Make sure the tag belongs to this vocab..
tag_dict['vocabulary_id'] = vocabulary_obj.id
# then add it.
tag_dict_save(tag_dict, {'model': model, 'session': session})
def vocabulary_dict_save(vocabulary_dict, context):
model = context['model']
session = context['session']
vocabulary_name = vocabulary_dict['name']
vocabulary_obj = model.Vocabulary(vocabulary_name)
session.add(vocabulary_obj)
if vocabulary_dict.has_key('tags'):
vocabulary_tag_list_save(vocabulary_dict['tags'], vocabulary_obj,
context)
return vocabulary_obj
def vocabulary_dict_update(vocabulary_dict, context):
model = context['model']
session = context['session']
vocabulary_obj = model.vocabulary.Vocabulary.get(vocabulary_dict['id'])
if vocabulary_dict.has_key('name'):
vocabulary_obj.name = vocabulary_dict['name']
if vocabulary_dict.has_key('tags'):
vocabulary_tag_list_save(vocabulary_dict['tags'], vocabulary_obj,
context)
return vocabulary_obj
def tag_dict_save(tag_dict, context):
model = context['model']
tag = context.get('tag')
if tag:
tag_dict['id'] = tag.id
tag = d.table_dict_save(tag_dict, model.Tag, context)
return tag
def follower_dict_save(data_dict, context, FollowerClass):
model = context['model']
session = context['session']
follower_obj = FollowerClass(
follower_id=model.User.get(context['user']).id,
object_id=data_dict['id'])
session.add(follower_obj)
return follower_obj
def resource_view_dict_save(data_dict, context):
model = context['model']
resource_view = context.get('resource_view')
if resource_view:
data_dict['id'] = resource_view.id
config = {}
for key, value in data_dict.iteritems():
if key not in model.ResourceView.get_columns():
config[key] = value
data_dict['config'] = config
return d.table_dict_save(data_dict, model.ResourceView, context)