demarches-normaliennes/app/models/champs/commune_champ.rb

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class Champs::CommuneChamp < Champs::TextChamp
store_accessor :value_json, :code_departement, :code_postal
before_validation :on_code_postal_change
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def for_export
[to_s, code? ? code : '', departement? ? departement_code_and_name : '']
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end
def departement_name
APIGeoService.departement_name(code_departement)
end
def departement_code_and_name
"#{code_departement} #{departement_name}"
end
def departement
{ code: code_departement, name: departement_name }
end
def departement?
code_departement.present?
end
def code?
code.present?
end
def code_postal?
code_postal.present?
end
def code_postal=(value)
super(value&.gsub(/[[:space:]]/, ''))
end
alias postal_code code_postal
def name
if code?
APIGeoService.commune_name(code_departement, code).presence || safe_to_s
else
safe_to_s
end
end
def to_s
if code?
name = APIGeoService.commune_name(code_departement, code)
name.present? ? "#{name} (#{code_postal})" : safe_to_s
else
safe_to_s
end
end
def code
external_id
end
def selected
code
end
def communes
if code_postal?
APIGeoService.communes_by_postal_code(code_postal)
else
[]
end
end
def value=(code)
if code.blank? || !code_postal?
self.code_departement = nil
self.external_id = nil
super(nil)
else
commune = communes.find { _1[:code] == code }
if commune.present?
self.code_departement = commune[:departement_code]
self.external_id = commune[:code]
super(commune[:name])
else
self.code_departement = nil
self.external_id = nil
super(nil)
end
end
end
private
def safe_to_s
value.present? ? value.to_s : ''
end
def on_code_postal_change
if code_postal_changed?
if communes.one?
self.value = communes.first[:code]
else
self.value = nil
end
end
end
end