demarches-normaliennes/app/models/champ.rb

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# == Schema Information
#
# Table name: champs
#
# id :integer not null, primary key
# data :jsonb
# fetch_external_data_exceptions :string is an Array
# private :boolean default(FALSE), not null
# rebased_at :datetime
# row :integer
# type :string
# value :string
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# value_json :jsonb
# created_at :datetime
# updated_at :datetime
# dossier_id :integer
# etablissement_id :integer
# external_id :string
# parent_id :bigint
# type_de_champ_id :integer
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#
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class Champ < ApplicationRecord
belongs_to :dossier, inverse_of: false, touch: true, optional: false
belongs_to :type_de_champ, inverse_of: :champ, optional: false
belongs_to :parent, class_name: 'Champ', optional: true
has_one_attached :piece_justificative_file
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# We declare champ specific relationships (Champs::CarteChamp, Champs::SiretChamp and Champs::RepetitionChamp)
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# here because otherwise we can't easily use includes in our queries.
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has_many :geo_areas, -> { order(:created_at) }, dependent: :destroy, inverse_of: :champ
belongs_to :etablissement, optional: true, dependent: :destroy
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has_many :champs, -> { ordered }, foreign_key: :parent_id, inverse_of: :parent, dependent: :destroy
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delegate :libelle,
:type_champ,
:procedure,
:mandatory?,
:description,
:drop_down_list_options,
:drop_down_other,
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:drop_down_list_options?,
:drop_down_list_disabled_options,
:drop_down_list_enabled_non_empty_options,
:drop_down_secondary_libelle,
:drop_down_secondary_description,
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:exclude_from_export?,
:exclude_from_view?,
:repetition?,
:dossier_link?,
:titre_identite?,
:header_section?,
:cnaf?,
:dgfip?,
:pole_emploi?,
:mesri?,
:siret?,
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:stable_id,
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to: :type_de_champ
scope :updated_since?, -> (date) { where('champs.updated_at > ?', date) }
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scope :public_only, -> { where(private: false) }
scope :private_only, -> { where(private: true) }
scope :ordered, -> do
includes(:type_de_champ)
.joins(dossier: { revision: :revision_types_de_champ })
.where('procedure_revision_types_de_champ.type_de_champ_id = champs.type_de_champ_id')
.order(:row, :position)
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end
scope :public_ordered, -> { public_only.ordered }
scope :private_ordered, -> { private_only.ordered }
scope :root, -> { where(parent_id: nil) }
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before_create :set_dossier_id, if: :needs_dossier_id?
before_validation :set_dossier_id, if: :needs_dossier_id?
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before_save :cleanup_if_empty
after_update_commit :fetch_external_data_later
validates :type_de_champ_id, uniqueness: { scope: [:dossier_id, :row] }
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def public?
!private?
end
def child?
parent_id.present?
end
def sections
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@sections ||= dossier&.sections_for(self)
end
def mandatory_blank_and_visible?
mandatory? && blank? && visible?
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end
def blank?
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value.blank?
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end
def search_terms
[to_s]
end
def to_s
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value.present? ? value.to_s : ''
end
def for_export
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value.presence
end
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def for_api
value
end
def for_api_v2
to_s
end
def for_tag
value.present? ? value.to_s : ''
end
def main_value_name
:value
end
def to_typed_id
type_de_champ.to_typed_id
end
def html_label?
true
end
def input_group_id
"champ-#{html_id}"
end
def input_id
"#{html_id}-input"
end
# A predictable string to use when generating an input name for this champ.
#
# Rail's FormBuilder can auto-generate input names, using the form "dossier[champs_attributes][5]",
# where [5] is the index of the field in the form.
# However the field index makes it difficult to render a single field, independent from the ordering of the others.
#
# Luckily, this is only used to make the name unique, but the actual value is ignored when Rails parses nested
# attributes. So instead of the field index, this method uses the champ id; which gives us an independent and
# predictable input name.
def input_name
if parent_id
"#{parent.input_name}[champs_attributes][#{id}]"
else
"dossier[#{champs_attributes_accessor}][#{id}]"
end
end
def labelledby_id
"#{html_id}-label"
end
def describedby_id
"#{html_id}-description" if description.present?
end
def log_fetch_external_data_exception(exception)
exceptions = self.fetch_external_data_exceptions ||= []
exceptions << exception.inspect
update_column(:fetch_external_data_exceptions, exceptions)
end
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def fetch_external_data?
false
end
def fetch_external_data
raise NotImplemented.new(:fetch_external_data)
end
def conditional?
type_de_champ.condition.present?
end
def visible?
if conditional?
type_de_champ.condition.compute(champs_for_condition)
else
true
end
end
private
def champs_for_condition
private? ? dossier.champs_private : dossier.champs
end
def html_id
"#{stable_id}-#{id}"
end
def champs_attributes_accessor
if private?
"champs_private_attributes"
else
"champs_attributes"
end
end
def needs_dossier_id?
!dossier_id && parent_id
end
def set_dossier_id
self.dossier_id = parent.dossier_id
end
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def cleanup_if_empty
if external_id_changed?
self.data = nil
end
end
def fetch_external_data_later
if fetch_external_data? && external_id.present? && data.nil?
ChampFetchExternalDataJob.perform_later(self, external_id)
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end
end
class NotImplemented < ::StandardError
def initialize(method)
super(":#{method} not implemented")
end
end
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end