145 lines
3.9 KiB
Ruby
145 lines
3.9 KiB
Ruby
# frozen_string_literal: true
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class Column
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# include validations to enable procedure_presentation.validate_associate,
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# which enforces the deserialization of columns in the displayed_columns attribute
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# and raises an error if a column is not found
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include ActiveModel::Validations
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TYPE_DE_CHAMP_TABLE = 'type_de_champ'
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attr_reader :table, :column, :label, :type, :scope, :value_column, :filterable, :displayable
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def initialize(procedure_id:, table:, column:, label: nil, type: :text, value_column: :value, filterable: true, displayable: true, scope: '')
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@procedure_id = procedure_id
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@table = table
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@column = column
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@label = label || I18n.t(column, scope: [:activerecord, :attributes, :procedure_presentation, :fields, table])
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@type = type
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@scope = scope
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@value_column = value_column
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@filterable = filterable
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@displayable = displayable
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end
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# the id is a String to be used in forms
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def id = h_id.to_json
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# the h_id is a Hash and hold enough information to find the column
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# in the ColumnType class, aka be able to do the h_id -> column conversion
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def h_id = { procedure_id: @procedure_id, column_id: "#{table}/#{column}" }
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def ==(other) = h_id == other.h_id # using h_id instead of id to avoid inversion of keys
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def to_json
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{
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table:, column:, label:, type:, scope:, value_column:, filterable:, displayable:
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}
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end
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def notifications? = [table, column] == ['notifications', 'notifications']
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def dossier_state? = [table, column] == ['self', 'state']
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def groupe_instructeur? = [table, column] == ['groupe_instructeur', 'id']
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def type_de_champ? = table == TYPE_DE_CHAMP_TABLE
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def self.find(h_id)
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begin
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procedure = Procedure.with_discarded.find(h_id[:procedure_id])
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rescue ActiveRecord::RecordNotFound
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raise ActiveRecord::RecordNotFound.new("Column: unable to find procedure #{h_id[:procedure_id]} from h_id #{h_id}")
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end
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procedure.find_column(h_id: h_id)
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end
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def value(champ)
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return if champ.nil?
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value = typed_value(champ)
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if default_column?
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cast_value(value, from_type: champ.last_write_column_type, to_type: type)
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else
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value
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end
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end
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private
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def typed_value(champ)
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value = string_value(champ)
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parse_value(value, type: champ.last_write_column_type)
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end
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def string_value(champ) = champ.public_send(value_column)
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def default_column? = value_column.in?([:value, :external_id])
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def parse_value(value, type:)
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return if value.blank?
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case type
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when :boolean
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parse_boolean(value)
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when :integer
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value.to_i
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when :decimal
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value.to_f
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when :datetime
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parse_datetime(value)
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when :date
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parse_datetime(value)&.to_date
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when :enums
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parse_enums(value)
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else
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value
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end
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end
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def cast_value(value, from_type:, to_type:)
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return if value.blank?
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return value if from_type == to_type
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case [from_type, to_type]
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when [:integer, :decimal] # recast numbers automatically
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value.to_f
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when [:decimal, :integer] # may lose some data, but who cares ?
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value.to_i
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when [:integer, :text], [:decimal, :text] # number to text
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value.to_s
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when [:enum, :enums] # single list can become multi
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[value]
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when [:enum, :text] # single list can become text
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value
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when [:enums, :enum] # multi list can become single list
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value.first
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when [:enums, :text] # multi list can become text
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value.join(', ')
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when [:date, :datetime] # date <=> datetime
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value.to_datetime
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when [:datetime, :date] # may lose some data, but who cares ?
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value.to_date
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else
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nil
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end
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end
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def parse_boolean(value)
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case value
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when 'true', 'on', '1'
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true
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when 'false'
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false
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end
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end
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def parse_enums(value)
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JSON.parse(value)
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rescue JSON::ParserError
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nil
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end
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def parse_datetime(value)
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Time.zone.parse(value)
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rescue ArgumentError
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nil
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end
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end
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