diff options
Diffstat (limited to 'activerecord/lib/arel/visitors/mysql.rb')
| -rw-r--r-- | activerecord/lib/arel/visitors/mysql.rb | 127 |
1 files changed, 64 insertions, 63 deletions
diff --git a/activerecord/lib/arel/visitors/mysql.rb b/activerecord/lib/arel/visitors/mysql.rb index 4c734f6292..7b32988be6 100644 --- a/activerecord/lib/arel/visitors/mysql.rb +++ b/activerecord/lib/arel/visitors/mysql.rb @@ -1,86 +1,87 @@ # frozen_string_literal: true + module Arel module Visitors class MySQL < Arel::Visitors::ToSql private - def visit_Arel_Nodes_Union o, collector, suppress_parens = false - unless suppress_parens - collector << "( " - end + def visit_Arel_Nodes_Union(o, collector, suppress_parens = false) + unless suppress_parens + collector << "( " + end - collector = case o.left - when Arel::Nodes::Union - visit_Arel_Nodes_Union o.left, collector, true - else - visit o.left, collector - end + collector = case o.left + when Arel::Nodes::Union + visit_Arel_Nodes_Union o.left, collector, true + else + visit o.left, collector + end - collector << " UNION " + collector << " UNION " - collector = case o.right - when Arel::Nodes::Union - visit_Arel_Nodes_Union o.right, collector, true - else - visit o.right, collector - end + collector = case o.right + when Arel::Nodes::Union + visit_Arel_Nodes_Union o.right, collector, true + else + visit o.right, collector + end - if suppress_parens - collector - else - collector << " )" + if suppress_parens + collector + else + collector << " )" + end end - end - def visit_Arel_Nodes_Bin o, collector - collector << "BINARY " - visit o.expr, collector - end + def visit_Arel_Nodes_Bin(o, collector) + collector << "BINARY " + visit o.expr, collector + end - ### - # :'( - # http://dev.mysql.com/doc/refman/5.0/en/select.html#id3482214 - def visit_Arel_Nodes_SelectStatement o, collector - if o.offset && !o.limit - o.limit = Arel::Nodes::Limit.new(18446744073709551615) + ### + # :'( + # http://dev.mysql.com/doc/refman/5.0/en/select.html#id3482214 + def visit_Arel_Nodes_SelectStatement(o, collector) + if o.offset && !o.limit + o.limit = Arel::Nodes::Limit.new(18446744073709551615) + end + super end - super - end - def visit_Arel_Nodes_SelectCore o, collector - o.froms ||= Arel.sql('DUAL') - super - end + def visit_Arel_Nodes_SelectCore(o, collector) + o.froms ||= Arel.sql("DUAL") + super + end - def visit_Arel_Nodes_UpdateStatement o, collector - collector << "UPDATE " - collector = visit o.relation, collector + def visit_Arel_Nodes_UpdateStatement(o, collector) + collector << "UPDATE " + collector = visit o.relation, collector - unless o.values.empty? - collector << " SET " - collector = inject_join o.values, collector, ', ' - end + unless o.values.empty? + collector << " SET " + collector = inject_join o.values, collector, ", " + end - unless o.wheres.empty? - collector << " WHERE " - collector = inject_join o.wheres, collector, ' AND ' - end + unless o.wheres.empty? + collector << " WHERE " + collector = inject_join o.wheres, collector, " AND " + end - unless o.orders.empty? - collector << " ORDER BY " - collector = inject_join o.orders, collector, ', ' - end + unless o.orders.empty? + collector << " ORDER BY " + collector = inject_join o.orders, collector, ", " + end - maybe_visit o.limit, collector - end + maybe_visit o.limit, collector + end - def visit_Arel_Nodes_Concat o, collector - collector << " CONCAT(" - visit o.left, collector - collector << ", " - visit o.right, collector - collector << ") " - collector - end + def visit_Arel_Nodes_Concat(o, collector) + collector << " CONCAT(" + visit o.left, collector + collector << ", " + visit o.right, collector + collector << ") " + collector + end end end end |