59 lines
1.6 KiB
Ruby
59 lines
1.6 KiB
Ruby
# frozen_string_literal: true
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require "arel/errors"
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require "arel/crud"
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require "arel/factory_methods"
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require "arel/expressions"
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require "arel/predications"
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require "arel/window_predications"
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require "arel/math"
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require "arel/alias_predication"
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require "arel/order_predications"
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require "arel/table"
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require "arel/attributes/attribute"
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require "arel/visitors"
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require "arel/collectors/sql_string"
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require "arel/tree_manager"
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require "arel/insert_manager"
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require "arel/select_manager"
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require "arel/update_manager"
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require "arel/delete_manager"
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require "arel/nodes"
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module Arel
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VERSION = "10.0.0"
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# Wrap a known-safe SQL string for passing to query methods, e.g.
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#
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# Post.order(Arel.sql("length(title)")).last
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#
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# Great caution should be taken to avoid SQL injection vulnerabilities.
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# This method should not be used with unsafe values such as request
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# parameters or model attributes.
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def self.sql(raw_sql)
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Arel::Nodes::SqlLiteral.new raw_sql
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end
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def self.star # :nodoc:
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sql "*"
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end
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def self.arel_node?(value) # :nodoc:
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value.is_a?(Arel::Node) || value.is_a?(Arel::Attribute) || value.is_a?(Arel::Nodes::SqlLiteral)
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end
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def self.fetch_attribute(value) # :nodoc:
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case value
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when Arel::Nodes::Between, Arel::Nodes::In, Arel::Nodes::NotIn, Arel::Nodes::Equality, Arel::Nodes::NotEqual, Arel::Nodes::LessThan, Arel::Nodes::LessThanOrEqual, Arel::Nodes::GreaterThan, Arel::Nodes::GreaterThanOrEqual
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yield value.left.is_a?(Arel::Attributes::Attribute) ? value.left : value.right
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end
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end
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## Convenience Alias
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Node = Arel::Nodes::Node # :nodoc:
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end
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