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model_save.py
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model_save.py
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from ckan.lib.dictization import table_dict_save
from sqlalchemy.orm import class_mapper
from ckan.lib.helpers import json
##package saving
def resource_dict_save(res_dict, context):
model = context["model"]
session = context["session"]
trigger_url_change = False
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]
for key, value in res_dict.iteritems():
if isinstance(value, list):
continue
if key in ('extras', 'revision_timestamp'):
continue
if key in fields:
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
obj.extras[key] = value
if context.get('pending'):
if session.is_modified(obj, include_collections=False):
obj.state = u'pending'
else:
obj.state = u'active'
session.add(obj)
return obj
def package_resource_list_save(res_dicts, package, context):
pending = context.get('pending')
resource_list = package.resource_groups_all[0].resources_all
old_list = package.resource_groups_all[0].resources_all[:]
obj_list = []
for res_dict in res_dicts:
obj = resource_dict_save(res_dict, context)
obj_list.append(obj)
resource_list[:] = obj_list
for resource in set(old_list) - set(obj_list):
if pending and resource.state <> 'deleted':
resource.state = 'pending-deleted'
else:
resource.state = 'deleted'
resource_list.append(resource)
tag_package_tag = dict((package_tag.tag, package_tag)
for package_tag in
package.package_tag_all)
def package_extras_save(extra_dicts, obj, context):
model = context["model"]
session = context["session"]
extras_as_string = context.get("extras_as_string", False)
extras_list = obj.extras_list
old_extras = dict((extra.key, extra) for extra in extras_list)
new_extras = {}
for extra_dict in extra_dicts:
if extra_dict.get("deleted"):
continue
if extra_dict['value'] is None:
pass
elif extras_as_string:
new_extras[extra_dict["key"]] = extra_dict["value"]
else:
new_extras[extra_dict["key"]] = json.loads(extra_dict["value"])
#new
for key in set(new_extras.keys()) - set(old_extras.keys()):
state = 'pending' if context.get('pending') else '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]
#dont change state to pending if nothing has changed
if new_extras[key] == extra.value and extra.state != 'deleted':
continue
state = 'pending' if context.get('pending') else '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 = 'pending-deleted' if context.get('pending') else 'deleted'
extra.state = state
def group_extras_save(extras_dicts, context):
model = context["model"]
session = context["session"]
extras_as_string = context.get("extras_as_string", False)
result_dict = {}
for extra_dict in extras_dicts:
if extra_dict.get("deleted"):
continue
if extras_as_string:
result_dict[extra_dict["key"]] = extra_dict["value"]
else:
result_dict[extra_dict["key"]] = json.loads(extra_dict["value"])
return result_dict
def package_tag_list_save(tag_dicts, package, context):
allow_partial_update = context.get("allow_partial_update", False)
if not tag_dicts and allow_partial_update:
return
model = context["model"]
session = context["session"]
pending = context.get('pending')
tag_package_tag = dict((package_tag.tag, package_tag)
for package_tag in
package.package_tag_all)
tag_package_tag_inactive = dict(
[ (tag,pt) for tag,pt in tag_package_tag.items() if
pt.state in ['deleted', 'pending-deleted'] ]
)
tag_names = set()
tags = set()
for tag_dict in tag_dicts:
if tag_dict.get('name') not in tag_names:
tag_obj = table_dict_save(tag_dict, model.Tag, context)
tags.add(tag_obj)
tag_names.add(tag_obj.name)
# 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]
if pending and package_tag.state != 'deleted':
package_tag.state = 'pending-deleted'
else:
package_tag.state = 'deleted'
# in new list but never used before
for tag in tags - set(tag_package_tag.keys()):
state = 'pending' if pending else 'active'
package_tag_obj = model.PackageTag(package, tag, state)
session.add(package_tag_obj)
tag_package_tag[tag] = package_tag_obj
# in new list and already used but in deleted state
for tag in tags.intersection(set(tag_package_tag_inactive.keys())):
state = 'pending' if pending else '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 not group_dicts and allow_partial_update:
return
model = context["model"]
session = context["session"]
pending = context.get('pending')
members = session.query(model.Member).filter_by(table_id = package.id)
group_member = dict((member.group, member)
for member in
members)
groups = set()
for group_dict in group_dicts:
id = group_dict.get("id")
name = group_dict.get("name")
if id:
group = session.query(model.Group).get(id)
else:
group = session.query(model.Group).filter_by(name=name).first()
groups.add(group)
## need to flush so we can get out the package id
model.Session.flush()
for group in groups - set(group_member.keys()):
member_obj = model.Member(table_id = package.id,
table_name = 'package',
group = group,
group_id=group.id,
state = 'active')
session.add(member_obj)
for group in set(group_member.keys()) - groups:
member_obj = group_member[group]
member_obj.state = 'deleted'
session.add(member_obj)
for group in set(group_member.keys()) & groups:
member_obj = group_member[group]
member_obj.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 not relationship_dicts and allow_partial_update:
return
model = context["model"]
session = context["session"]
pending = context.get('pending')
relationship_list = getattr(package, attr)
old_list = relationship_list[:]
relationships = []
for relationship_dict in relationship_dicts:
obj = table_dict_save(relationship_dict,
model.PackageRelationship, context)
relationships.append(obj)
relationship_list[:] = relationships
for relationship in set(old_list) - set(relationship_list):
if pending and relationship.state <> 'deleted':
relationship.state = 'pending-deleted'
else:
relationship.state = 'deleted'
relationship_list.append(relationship)
def package_dict_save(pkg_dict, context):
import uuid
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 = 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)
subjects = pkg_dict.get('relationships_as_subject', [])
relationship_list_save(subjects, pkg, 'relationships_as_subject', context)
objects = pkg_dict.get('relationships_as_object', [])
relationship_list_save(subjects, 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, [])
entities = {}
Member = model.Member
ModelClass = getattr(model, member_table_name[:-1].capitalize())
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', 'member'))] = obj
members = session.query(Member).filter_by(
table_name=member_table_name[:-1],
group_id=group.id,
).all()
entity_member = dict(((member.table_id, member.capacity), member) for member in members)
for entity_id in set(entity_member.keys()) - set(entities.keys()):
entity_member[entity_id].state = 'deleted'
session.add(entity_member[entity_id])
for entity_id in set(entity_member.keys()) & set(entities.keys()):
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])
session.add(member)
def group_dict_save(group_dict, context):
import uuid
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 = table_dict_save(group_dict, Group, context)
if not group.id:
group.id = str(uuid.uuid4())
context['group'] = group
group_member_save(context, group_dict, 'packages')
group_member_save(context, group_dict, 'users')
group_member_save(context, group_dict, 'groups')
group_member_save(context, group_dict, 'tags')
extras = group_extras_save(group_dict.get("extras", {}), context)
if extras or not allow_partial_update:
old_extras = set(group.extras.keys())
new_extras = set(extras.keys())
for key in old_extras - new_extras:
del group.extras[key]
for key in new_extras:
group.extras[key] = extras[key]
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 = 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') or '1'
dictized = {}
for key, value in api1_dict.iteritems():
new_value = value
if key == 'tags':
if isinstance(value, basestring):
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():
if extras_value is not None:
new_value.append({"key": extras_key,
"value": json.dumps(extras_value)})
else:
new_value.append({"key": extras_key,
"value": None})
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 = table_dict_save(task_status_dict, model.TaskStatus, context)
return task_status