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35 lines
680 B
Ruby
35 lines
680 B
Ruby
module Arel
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###
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# Methods for creating various nodes
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module FactoryMethods
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def create_table_alias relation, name
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Nodes::TableAlias.new(relation, name)
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end
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def create_join to, constraint = nil, klass = Nodes::InnerJoin
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klass.new(to, constraint)
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end
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def create_string_join to
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create_join to, nil, Nodes::StringJoin
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end
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def create_and clauses
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Nodes::And.new clauses
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end
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def create_on expr
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Nodes::On.new expr
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end
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def grouping expr
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Nodes::Grouping.new expr
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end
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###
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# Create a LOWER() function
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def lower column
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Nodes::NamedFunction.new 'LOWER', [column]
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end
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end
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end
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