53 lines
1.7 KiB
Ruby
53 lines
1.7 KiB
Ruby
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class Columns::JSONPathColumn < Column
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def column
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"#{@column}->#{value_column}" # override column otherwise json path facets will have same id as other
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end
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def filtered_ids(dossiers, search_occurences)
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queries = Array.new(search_occurences.count, "(#{json_path_query_part} ILIKE ?)").join(' OR ')
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dossiers.with_type_de_champ(stable_id)
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.where(queries, *(search_occurences.map { |value| "%#{value}%" }))
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.ids
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end
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def options_for_select
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case value_column.last
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when 'departement_code'
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APIGeoService.departements.map { ["#{_1[:code]} – #{_1[:name]}", _1[:code]] }
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when 'region_name'
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APIGeoService.regions.map { [_1[:name], _1[:name]] }
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else
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[]
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end
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end
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private
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def stable_id
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@column
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end
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# given a value_column as ['value_json', 'address', 'postal_code']
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# build SQL query as 'champs'.'value_json'->'address'->>'postal_code'
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# see: https://www.postgresql.org/docs/9.5/functions-json.html
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def json_path_query_part
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*json_segments, key = value_column
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if json_segments.blank? # not nested, only access using ->> Get JSON array element as text
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"#{quote_table_column('champs')}.#{quote_table_column('value_json')}->>#{quote_json_segment(key)}"
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else # nested, have to dig in json using -> Get JSON object field by key
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field_accessor = json_segments.map(&method(:quote_json_segment)).join('->')
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"#{quote_table_column('champs')}.#{quote_table_column('value_json')}->#{field_accessor}->>#{quote_json_segment(key)}"
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end
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end
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def quote_table_column(table_or_column)
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ActiveRecord::Base.connection.quote_column_name(table_or_column)
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end
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def quote_json_segment(path)
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"'#{path}'"
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end
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end
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