559 lines
17 KiB
Python
559 lines
17 KiB
Python
import jsonschema
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from django.db import transaction
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from openslides.poll.serializers import (
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BASE_OPTION_FIELDS,
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BASE_POLL_FIELDS,
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BASE_VOTE_FIELDS,
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BaseOptionSerializer,
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BasePollSerializer,
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BaseVoteSerializer,
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)
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from ..core.config import config
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from ..utils.auth import get_group_model, has_perm
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from ..utils.autoupdate import inform_changed_data
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from ..utils.rest_api import (
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BooleanField,
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CharField,
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Field,
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IdPrimaryKeyRelatedField,
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IntegerField,
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JSONField,
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ModelSerializer,
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SerializerMethodField,
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ValidationError,
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)
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from ..utils.validate import validate_html_strict
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from .models import (
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Category,
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Motion,
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MotionBlock,
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MotionChangeRecommendation,
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MotionComment,
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MotionCommentSection,
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MotionOption,
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MotionPoll,
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MotionVote,
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State,
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StatuteParagraph,
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Submitter,
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Workflow,
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)
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def validate_workflow_field(value):
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"""
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Validator to ensure that the workflow with the given id exists.
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"""
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if not Workflow.objects.filter(pk=value).exists():
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raise ValidationError(
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{"detail": "Workflow {0} does not exist.", "args": [value]}
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)
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class StatuteParagraphSerializer(ModelSerializer):
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"""
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Serializer for motion.models.StatuteParagraph objects.
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"""
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class Meta:
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model = StatuteParagraph
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fields = ("id", "title", "text", "weight")
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class CategorySerializer(ModelSerializer):
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"""
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Serializer for motion.models.Category objects.
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"""
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class Meta:
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model = Category
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fields = ("id", "name", "prefix", "parent", "weight", "level")
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read_only_fields = ("parent", "weight")
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class MotionBlockSerializer(ModelSerializer):
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"""
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Serializer for motion.models.Category objects.
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"""
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agenda_create = BooleanField(write_only=True, required=False, allow_null=True)
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agenda_type = IntegerField(
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write_only=True, required=False, min_value=1, max_value=3, allow_null=True
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)
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agenda_parent_id = IntegerField(write_only=True, required=False, min_value=1)
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motions_id = SerializerMethodField()
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class Meta:
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model = MotionBlock
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fields = (
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"id",
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"title",
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"agenda_item_id",
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"list_of_speakers_id",
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"agenda_create",
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"agenda_type",
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"agenda_parent_id",
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"internal",
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"motions_id",
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)
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def get_motions_id(self, block):
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return [motion.id for motion in block.motion_set.all()]
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def create(self, validated_data):
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"""
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Customized create method. Set information about related agenda item
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into agenda_item_update_information container.
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"""
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agenda_create = validated_data.pop("agenda_create", None)
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agenda_type = validated_data.pop("agenda_type", None)
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agenda_parent_id = validated_data.pop("agenda_parent_id", None)
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request_user = validated_data.pop("request_user") # this should always be there
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motion_block = MotionBlock(**validated_data)
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if has_perm(request_user, "agenda.can_manage"):
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motion_block.agenda_item_update_information["create"] = agenda_create
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motion_block.agenda_item_update_information["type"] = agenda_type
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motion_block.agenda_item_update_information["parent_id"] = agenda_parent_id
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motion_block.save()
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return motion_block
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class StateSerializer(ModelSerializer):
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"""
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Serializer for motion.models.State objects.
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"""
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restriction = JSONField(required=False)
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class Meta:
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model = State
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fields = (
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"id",
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"name",
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"recommendation_label",
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"css_class",
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"restriction",
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"allow_support",
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"allow_create_poll",
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"allow_submitter_edit",
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"dont_set_identifier",
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"show_state_extension_field",
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"merge_amendment_into_final",
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"show_recommendation_extension_field",
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"next_states",
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"workflow",
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)
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def validate_restriction(self, value):
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"""
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Ensures that the value is a list and only contains valid values.
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"""
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schema = {
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"$schema": "http://json-schema.org/draft-07/schema#",
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"title": "Motion workflow state restriction field schema",
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"description": "An array containing one or more explicit strings to control restriction for motions in this state.",
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"type": "array",
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"items": {
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"type": "string",
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"enum": [
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"motions.can_see_internal",
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"motions.can_manage_metadata",
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"motions.can_manage",
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"is_submitter",
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],
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},
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}
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# Validate value.
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try:
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jsonschema.validate(value, schema)
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except jsonschema.ValidationError as err:
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raise ValidationError({"detail": str(err)})
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return value
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class WorkflowSerializer(ModelSerializer):
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"""
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Serializer for motion.models.Workflow objects.
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"""
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# states = StateSerializer(many=True, read_only=True)
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states = IdPrimaryKeyRelatedField(many=True, read_only=True)
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class Meta:
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model = Workflow
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fields = ("id", "name", "states", "first_state")
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read_only_fields = ("first_state",)
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@transaction.atomic
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def create(self, validated_data):
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"""
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Customized create method. Creating a new workflow does always create a
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new state which is used as first state.
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"""
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workflow = super().create(validated_data)
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first_state = State.objects.create(
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name="new",
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workflow=workflow,
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allow_create_poll=True,
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allow_support=True,
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allow_submitter_edit=True,
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)
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workflow.first_state = first_state
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workflow.save()
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return workflow
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class AmendmentParagraphsJSONSerializerField(Field):
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"""
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Serializer for motions's amendment_paragraphs JSONField.
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"""
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def to_representation(self, obj):
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"""
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Returns the value of the field.
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"""
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return obj
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def to_internal_value(self, data):
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"""
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Checks that data is a list of strings.
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"""
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if not isinstance(data, list):
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raise ValidationError({"detail": "Data must be a list."})
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for paragraph in data:
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if not isinstance(paragraph, str) and paragraph is not None:
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raise ValidationError(
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{"detail": "Paragraph must be either a string or null/None."}
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)
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return data
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class MotionVoteSerializer(BaseVoteSerializer):
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class Meta:
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model = MotionVote
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fields = BASE_VOTE_FIELDS
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read_only_fields = BASE_VOTE_FIELDS
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class MotionOptionSerializer(BaseOptionSerializer):
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class Meta:
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model = MotionOption
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fields = BASE_OPTION_FIELDS
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read_only_fields = BASE_OPTION_FIELDS
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class MotionPollSerializer(BasePollSerializer):
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"""
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Serializer for motion.models.MotionPoll objects.
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"""
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class Meta:
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model = MotionPoll
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fields = ("motion", "pollmethod") + BASE_POLL_FIELDS
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read_only_fields = ("state",)
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def update(self, instance, validated_data):
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""" Prevent updating the motion """
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validated_data.pop("motion", None)
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return super().update(instance, validated_data)
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def norm_100_percent_base_to_pollmethod(
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self, onehundred_percent_base, pollmethod, old_100_percent_base=None
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):
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if (
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pollmethod == MotionPoll.POLLMETHOD_YN
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and onehundred_percent_base == MotionPoll.PERCENT_BASE_YNA
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):
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return MotionPoll.PERCENT_BASE_YN
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return None
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class MotionChangeRecommendationSerializer(ModelSerializer):
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"""
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Serializer for motion.models.MotionChangeRecommendation objects.
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"""
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class Meta:
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model = MotionChangeRecommendation
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fields = (
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"id",
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"motion",
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"rejected",
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"internal",
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"type",
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"other_description",
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"line_from",
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"line_to",
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"text",
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"creation_time",
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)
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def is_title_cr(self, data):
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return int(data["line_from"]) == 0 and int(data["line_to"]) == 0
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def validate(self, data):
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# Change recommendations for titles are stored as plain-text, thus they don't need to be html-escaped
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if "text" in data and not self.is_title_cr(data):
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data["text"] = validate_html_strict(data["text"])
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return data
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class MotionCommentSectionSerializer(ModelSerializer):
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"""
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Serializer for motion.models.MotionCommentSection objects.
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"""
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read_groups = IdPrimaryKeyRelatedField(
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many=True, required=False, queryset=get_group_model().objects.all()
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)
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write_groups = IdPrimaryKeyRelatedField(
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many=True, required=False, queryset=get_group_model().objects.all()
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)
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class Meta:
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model = MotionCommentSection
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fields = ("id", "name", "read_groups", "write_groups", "weight")
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read_only_fields = ("weight",)
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def create(self, validated_data):
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""" Call inform_changed_data on creation, so the cache includes the groups. """
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section = super().create(validated_data)
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inform_changed_data(section)
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return section
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class MotionCommentSerializer(ModelSerializer):
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"""
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Serializer for motion.models.MotionComment objects.
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"""
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read_groups_id = SerializerMethodField()
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class Meta:
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model = MotionComment
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fields = ("id", "comment", "section", "read_groups_id")
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def get_read_groups_id(self, comment):
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return [group.id for group in comment.section.read_groups.all()]
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class SubmitterSerializer(ModelSerializer):
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"""
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Serializer for motion.models.Submitter objects.
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"""
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class Meta:
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model = Submitter
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fields = ("id", "user", "motion", "weight")
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class MotionSerializer(ModelSerializer):
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"""
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Serializer for motion.models.Motion objects.
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"""
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comments = MotionCommentSerializer(many=True, read_only=True)
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modified_final_version = CharField(allow_blank=True, required=False)
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reason = CharField(allow_blank=True, required=False)
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state_restriction = SerializerMethodField()
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text = CharField(allow_blank=True, required=False) # This will be checked
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# during validation
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title = CharField(max_length=255)
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amendment_paragraphs = AmendmentParagraphsJSONSerializerField(
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required=False, allow_null=True
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)
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workflow_id = IntegerField(
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min_value=1, required=False, validators=[validate_workflow_field]
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)
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agenda_create = BooleanField(write_only=True, required=False, allow_null=True)
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agenda_type = IntegerField(
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write_only=True, required=False, min_value=1, max_value=3, allow_null=True
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)
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agenda_parent_id = IntegerField(write_only=True, required=False, min_value=1)
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submitters = SubmitterSerializer(many=True, read_only=True)
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change_recommendations = IdPrimaryKeyRelatedField(many=True, read_only=True)
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amendments_id = SerializerMethodField()
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class Meta:
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model = Motion
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fields = (
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"id",
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"identifier",
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"title",
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"text",
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"amendment_paragraphs",
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"modified_final_version",
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"reason",
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"parent",
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"category",
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"category_weight",
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"comments",
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"motion_block",
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"origin",
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"submitters",
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"supporters",
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"state",
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"state_extension",
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"state_restriction",
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"statute_paragraph",
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"workflow_id",
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"recommendation",
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"recommendation_extension",
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"tags",
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"attachments",
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"agenda_item_id",
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"list_of_speakers_id",
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"agenda_create",
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"agenda_type",
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"agenda_parent_id",
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"sort_parent",
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"weight",
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"created",
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"last_modified",
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"change_recommendations",
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"amendments_id",
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)
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read_only_fields = (
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"state",
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"recommendation",
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"weight",
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"category_weight",
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"amendments_id",
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) # Some other fields are also read_only. See definitions above.
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def get_amendments_id(self, motion):
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return [amendment.id for amendment in motion.amendments.all()]
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def validate(self, data):
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if "text" in data:
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data["text"] = validate_html_strict(data["text"])
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if "modified_final_version" in data:
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data["modified_final_version"] = validate_html_strict(
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data["modified_final_version"]
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)
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if "reason" in data:
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data["reason"] = validate_html_strict(data["reason"])
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# The motion text is only needed, if it is not a paragraph based amendment.
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if data.get("amendment_paragraphs") is not None:
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data["amendment_paragraphs"] = list(
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map(
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lambda entry: validate_html_strict(entry)
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if isinstance(entry, str)
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else None,
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data["amendment_paragraphs"],
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)
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)
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data["text"] = ""
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else:
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if (self.partial and "text" in data and not data["text"]) or (
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not self.partial and not data.get("text")
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):
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raise ValidationError({"detail": "The text field may not be blank."})
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if config["motions_reason_required"]:
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if (self.partial and "reason" in data and not data["reason"]) or (
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not self.partial and not data.get("reason")
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):
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raise ValidationError({"detail": "The reason field may not be blank."})
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return data
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@transaction.atomic
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def create(self, validated_data):
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"""
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Customized method to create a new motion from some data.
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Set also information about related agenda item into
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agenda_item_update_information container.
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"""
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motion = Motion()
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motion.title = validated_data["title"]
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motion.text = validated_data["text"]
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motion.amendment_paragraphs = validated_data.get("amendment_paragraphs")
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motion.modified_final_version = validated_data.get("modified_final_version", "")
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motion.reason = validated_data.get("reason", "")
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motion.identifier = validated_data.get("identifier")
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motion.category = validated_data.get("category")
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motion.motion_block = validated_data.get("motion_block")
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motion.origin = validated_data.get("origin", "")
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motion.parent = validated_data.get("parent")
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motion.statute_paragraph = validated_data.get("statute_paragraph")
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motion.reset_state(validated_data.get("workflow_id"))
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if has_perm(validated_data["request_user"], "agenda.can_manage"):
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motion.agenda_item_update_information["create"] = validated_data.get(
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"agenda_create"
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)
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motion.agenda_item_update_information["type"] = validated_data.get(
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"agenda_type"
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)
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motion.agenda_item_update_information["parent_id"] = validated_data.get(
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"agenda_parent_id"
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)
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motion.save()
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motion.supporters.add(*validated_data.get("supporters", []))
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motion.attachments.add(*validated_data.get("attachments", []))
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motion.tags.add(*validated_data.get("tags", []))
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if motion.parent:
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inform_changed_data(motion.parent)
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if motion.motion_block:
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inform_changed_data(motion.motion_block)
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return motion
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@transaction.atomic
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def update(self, motion, validated_data):
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"""
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Customized method to update a motion.
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- If the workflow changes, the state of the motions is resetted to
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the initial state of the new workflow.
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- If the category changes, the category_weight is reset to the default value.
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"""
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workflow_id = None
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if "workflow_id" in validated_data:
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workflow_id = validated_data.pop("workflow_id")
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old_category_id = motion.category.pk if motion.category is not None else None
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new_category_id = (
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validated_data["category"].pk
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if validated_data.get("category") is not None
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else None
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)
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old_block = motion.motion_block
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new_block = validated_data.get("motion_block")
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result = super().update(motion, validated_data)
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# Check for changed workflow
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if workflow_id is not None and workflow_id != motion.workflow_id:
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motion.reset_state(workflow_id)
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motion.save(skip_autoupdate=True)
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# Check for changed category
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if old_category_id != new_category_id:
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motion.category_weight = 10000
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motion.save(skip_autoupdate=True)
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inform_changed_data(motion)
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if new_block != old_block:
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if new_block:
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inform_changed_data(new_block)
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if old_block:
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inform_changed_data(old_block)
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return result
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def get_state_restriction(self, motion):
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"""
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Returns the restriction of this state. The default is an empty list so everybody
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with permission to see motions can see this motion.
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"""
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return motion.state.restriction
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