module ConstantTableSaver::ActiveRecord5ClassMethods
Public Instance Methods
_to_sql_with_binds(sql, binds)
click to toggle source
# File lib/constant_table_saver.rb, line 146 def _to_sql_with_binds(sql, binds) if sql.respond_to?(:to_sql) # an arel object connection.to_sql(sql, binds) else # a plain string sql end end
find_by_sql(sql, binds = [], preparable: nil, &block)
click to toggle source
Calls superclass method
# File lib/constant_table_saver.rb, line 109 def find_by_sql(sql, binds = [], preparable: nil, &block) @find_by_sql ||= { :all => relation.to_sql, :id => relation.where(relation.table[primary_key].eq(Arel::Nodes::BindParam.new)).limit(1).arel, :first => relation.order(relation.table[primary_key].asc).limit(1).arel, :last => relation.order(relation.table[primary_key].desc).limit(1).arel, } @limit_one ||= ActiveRecord::Attribute.with_cast_value("LIMIT", 1, ActiveRecord::Type::Value.new) _sql = _to_sql_with_binds(sql, binds) if binds.empty? if _sql == @find_by_sql[:all] return @cached_records ||= super(relation.to_sql).each(&:freeze) end elsif binds.size == 1 && binds.last == @limit_one if _sql == _to_sql_with_binds(@find_by_sql[:first], binds) return [relation.to_a.first].compact elsif _sql == _to_sql_with_binds(@find_by_sql[:last], binds) return [relation.to_a.last].compact end elsif binds.size == 2 && binds.last == @limit_one && binds.first.is_a?(ActiveRecord::Relation::QueryAttribute) && binds.first.name == primary_key && _sql == _to_sql_with_binds(@find_by_sql[:id], binds) # we have to late-render the find(id) SQL because mysql2 on 4.1 and later requires the bind variables to render the SQL, and errors out with a nil dereference otherwise @cached_records_by_id ||= relation.to_a.index_by {|record| record.id.to_param} return [@cached_records_by_id[binds.first.value.to_param]].compact end super(sql, binds, preparable: preparable, &block) end