Class: Metka::BaseQuery

Inherits:
Object
  • Object
show all
Includes:
Singleton
Defined in:
lib/metka/query_builder/base_query.rb

Direct Known Subclasses

AllTagsQuery, AnyTagsQuery

Instance Method Summary collapse

Instance Method Details

#call(model, column_name, tag_list) ⇒ Object 



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# File 'lib/metka/query_builder/base_query.rb', line 9

def call(model, column_name, tag_list)
  tags = tag_list.to_a

  if tags.one?
    value = Arel::Nodes::SqlLiteral.new(
      ActiveRecord::Base.sanitize_sql_for_conditions(['?', tags.first])
    )

    column_cast = Arel::Nodes::NamedFunction.new(
      'ANY',
      [model.arel_table[column_name]]
    )

    Arel::Nodes::Equality.new(value, column_cast)
  else
    value = Arel::Nodes::SqlLiteral.new(
      ActiveRecord::Base.sanitize_sql_for_conditions(['ARRAY[?]::varchar[]', tags])
    )

    Arel::Nodes::InfixOperation.new(infix_operator, model.arel_table[column_name], value)
  end
  # column_cast = Arel::Nodes::NamedFunction.new(
  #   'CAST',
  #   [model.arel_table[column_name].as('text[]')]
  # )

  # value = Arel::Nodes::SqlLiteral.new(
  #   ActiveRecord::Base.sanitize_sql_for_conditions(['ARRAY[?]::varchar[]', tag_list.to_a])
  # )

  # value_cast = Arel::Nodes::NamedFunction.new(
  #   'CAST',
  #   [value.as('text[]')]
  # )

  # # Arel::Nodes::InfixOperation.new(infix_operator, column_cast, value_cast)
  # Arel::Nodes::InfixOperation.new(infix_operator, model.arel_table[column_name], value)
end