module Arel::FactoryMethods
Methods for creating various nodes
Public Instance Methods
create_and(clauses)
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# File lib/arel/factory_methods.rb, line 25 def create_and clauses Nodes::And.new clauses end
create_false()
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# File lib/arel/factory_methods.rb, line 9 def create_false Arel::Nodes::False.new end
create_join(to, constraint = nil, klass = Nodes::InnerJoin)
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# File lib/arel/factory_methods.rb, line 17 def create_join to, constraint = nil, klass = Nodes::InnerJoin klass.new(to, constraint) end
create_on(expr)
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# File lib/arel/factory_methods.rb, line 29 def create_on expr Nodes::On.new expr end
create_string_join(to)
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# File lib/arel/factory_methods.rb, line 21 def create_string_join to create_join to, nil, Nodes::StringJoin end
create_table_alias(relation, name)
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# File lib/arel/factory_methods.rb, line 13 def create_table_alias relation, name Nodes::TableAlias.new(relation, name) end
create_true()
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# File lib/arel/factory_methods.rb, line 5 def create_true Arel::Nodes::True.new end
grouping(expr)
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# File lib/arel/factory_methods.rb, line 33 def grouping expr Nodes::Grouping.new expr end
lower(column)
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Create a LOWER() function
# File lib/arel/factory_methods.rb, line 39 def lower column Nodes::NamedFunction.new 'LOWER', [column] end