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rails--rails/activerecord/lib/arel/factory_methods.rb
Ryuta Kamizono e5190acacd Make update_counters preparable
Before:

```
  Topic Update All (0.4ms)  UPDATE `topics` SET `topics`.`replies_count` = COALESCE(`topics`.`replies_count`, 0) + 1, `topics`.`updated_at` = '2018-09-27 18:34:05.068774' WHERE `topics`.`id` = ?  [["id", 7]]

```

After:

```
  Topic Update All (0.4ms)  UPDATE `topics` SET `topics`.`replies_count` = COALESCE(`topics`.`replies_count`, 0) + ?, `topics`.`updated_at` = ? WHERE `topics`.`id` = ?  [["replies_count", 1], ["updated_at", 2018-09-27 18:55:05 UTC], ["id", 7]]

```
2018-09-28 04:14:15 +09:00

49 lines
951 B
Ruby

# frozen_string_literal: true
module Arel # :nodoc: all
###
# Methods for creating various nodes
module FactoryMethods
def create_true
Arel::Nodes::True.new
end
def create_false
Arel::Nodes::False.new
end
def create_table_alias(relation, name)
Nodes::TableAlias.new(relation, name)
end
def create_join(to, constraint = nil, klass = Nodes::InnerJoin)
klass.new(to, constraint)
end
def create_string_join(to)
create_join to, nil, Nodes::StringJoin
end
def create_and(clauses)
Nodes::And.new clauses
end
def create_on(expr)
Nodes::On.new expr
end
def grouping(expr)
Nodes::Grouping.new expr
end
###
# Create a LOWER() function
def lower(column)
Nodes::NamedFunction.new "LOWER", [Nodes.build_quoted(column)]
end
def coalesce(*exprs)
Nodes::NamedFunction.new "COALESCE", exprs
end
end
end