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module CustomFieldsSupport
extend ActiveSupport::Concern
included do
validate :custom_fields_values_are_valid
after_initialize :initialize_custom_fields
def self.custom_fields workgroup
return CustomField.none unless workgroup
fields = CustomField.where(resource_type: self.name.split("::").last)
fields = fields.where(workgroup_id: workgroup.id)
fields
end
def self.custom_fields_definitions workgroup
Hash[*custom_fields(workgroup).map{|cf| [cf.code, cf]}.flatten]
end
def method_missing method_name, *args
if !@custom_fields_initialized && method_name =~ /custom_field_*/ && method_name.to_sym != :custom_field_values
initialize_custom_fields
send method_name, *args
else
super method_name, *args
end
end
def custom_fields deprecated_workgroup=nil
_workgroup = deprecated_workgroup || self.workgroup
CustomField::Collection.new self, _workgroup
end
def custom_fields_checksum
custom_fields.values.sort_by(&:code).map(&:checksum)
end
def custom_field_values= vals
if custom_fields_initialized?
out = {}
custom_fields.each do |code, field|
out[code] = field.preprocess_value_for_assignment(vals.symbolize_keys[code.to_sym])
end
@custom_fields_values_initialized = true
else
@raw_custom_fields_values = vals
out = vals
end
write_attribute :custom_field_values, out
end
def custom_fields_initialized?
!!@custom_fields_initialized
end
def custom_fields_values_initialized?
!!@custom_fields_values_initialized
end
def initialize_custom_fields
return if custom_fields_initialized?
return unless self.attributes.has_key?("custom_field_values")
return unless self.workgroup.present?
self.custom_field_values ||= {}
custom_fields.values.each &:initialize_custom_field
custom_fields.each do |k, v|
custom_field_values[k] ||= v.default_value
end
@custom_fields_initialized = true
self.custom_field_values = (@raw_custom_fields_values || self.custom_field_values) unless custom_fields_values_initialized?
end
def custom_field_value key
(custom_field_values&.stringify_keys || {})[key.to_s]
end
private
def custom_fields_values_are_valid
custom_fields.values.all?{|cf| cf.valid?}
end
end
end
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