method
build_from_hash
v4.2.1 -
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Class: ActiveRecord::PredicateBuilder
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build_from_hash(klass, attributes, default_table)
public
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# File activerecord/lib/active_record/relation/predicate_builder.rb, line 18 def self.build_from_hash(klass, attributes, default_table) queries = [] attributes.each do |column, value| table = default_table if value.is_a?(Hash) if value.empty? queries << '1=0' else table = Arel::Table.new(column, default_table.engine) association = klass._reflect_on_association(column) value.each do |k, v| queries.concat expand(association && association.klass, table, k, v) end end else column = column.to_s if column.include?('.') table_name, column = column.split('.', 2) table = Arel::Table.new(table_name, default_table.engine) end queries.concat expand(klass, table, column, value) end end queries end