class QueryBuilder::Core::Clause
The base class for all AST clauses (parts of statement)
Every clause has a type, allowing to filter clauses of a statement.
@abstract
Public Class Methods
type(value = nil)
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Gets/sets type for the specific clause class
@param [#to_sym, nil] value
@return [Symbol, nil]
# File lib/query_builder/core/clause.rb, line 32 def self.type(value = nil) value ? (@type = value) : @type end
unique()
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Makes all instances of the class unique
Only one instance can be added to the statement via ‘Statement#<<` method
@return [undefined]
# File lib/query_builder/core/clause.rb, line 22 def self.unique include Equalizer.new(:class) end
Public Instance Methods
type()
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@!method type
@return [Symbol] The type of the clause
# File lib/query_builder/core/clause.rb, line 40 def type self.class.type end