Class: ActiveRecord::Relation::WhereClause
- Defined in:
- lib/rubypitaya/app-template/vendor/bundle/ruby/3.1.0/gems/activerecord-7.0.4/lib/active_record/relation/where_clause.rb
Overview
:nodoc:
Class Method Summary collapse
Instance Method Summary collapse
- #+(other) ⇒ Object
- #-(other) ⇒ Object
- #==(other) ⇒ Object (also: #eql?)
- #ast ⇒ Object
- #contradiction? ⇒ Boolean
- #except(*columns) ⇒ Object
- #extract_attributes ⇒ Object
- #hash ⇒ Object
-
#initialize(predicates) ⇒ WhereClause
constructor
A new instance of WhereClause.
- #invert ⇒ Object
- #merge(other, rewhere = nil) ⇒ Object
- #or(other) ⇒ Object
- #to_h(table_name = nil, equality_only: false) ⇒ Object
- #|(other) ⇒ Object
Constructor Details
#initialize(predicates) ⇒ WhereClause
Returns a new instance of WhereClause.
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# File 'lib/rubypitaya/app-template/vendor/bundle/ruby/3.1.0/gems/activerecord-7.0.4/lib/active_record/relation/where_clause.rb', line 10 def initialize(predicates) @predicates = predicates end |
Class Method Details
.empty ⇒ Object
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# File 'lib/rubypitaya/app-template/vendor/bundle/ruby/3.1.0/gems/activerecord-7.0.4/lib/active_record/relation/where_clause.rb', line 95 def self.empty @empty ||= new([]).freeze end |
Instance Method Details
#+(other) ⇒ Object
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# File 'lib/rubypitaya/app-template/vendor/bundle/ruby/3.1.0/gems/activerecord-7.0.4/lib/active_record/relation/where_clause.rb', line 14 def +(other) WhereClause.new(predicates + other.predicates) end |
#-(other) ⇒ Object
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# File 'lib/rubypitaya/app-template/vendor/bundle/ruby/3.1.0/gems/activerecord-7.0.4/lib/active_record/relation/where_clause.rb', line 18 def -(other) WhereClause.new(predicates - other.predicates) end |
#==(other) ⇒ Object Also known as: eql?
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# File 'lib/rubypitaya/app-template/vendor/bundle/ruby/3.1.0/gems/activerecord-7.0.4/lib/active_record/relation/where_clause.rb', line 75 def ==(other) other.is_a?(WhereClause) && predicates == other.predicates end |
#ast ⇒ Object
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# File 'lib/rubypitaya/app-template/vendor/bundle/ruby/3.1.0/gems/activerecord-7.0.4/lib/active_record/relation/where_clause.rb', line 70 def ast predicates = predicates_with_wrapped_sql_literals predicates.one? ? predicates.first : Arel::Nodes::And.new(predicates) end |
#contradiction? ⇒ Boolean
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# File 'lib/rubypitaya/app-template/vendor/bundle/ruby/3.1.0/gems/activerecord-7.0.4/lib/active_record/relation/where_clause.rb', line 99 def contradiction? predicates.any? do |x| case x when Arel::Nodes::In Array === x.right && x.right.empty? when Arel::Nodes::Equality x.right.respond_to?(:unboundable?) && x.right.unboundable? end end end |
#except(*columns) ⇒ Object
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# File 'lib/rubypitaya/app-template/vendor/bundle/ruby/3.1.0/gems/activerecord-7.0.4/lib/active_record/relation/where_clause.rb', line 36 def except(*columns) WhereClause.new(except_predicates(columns)) end |
#extract_attributes ⇒ Object
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# File 'lib/rubypitaya/app-template/vendor/bundle/ruby/3.1.0/gems/activerecord-7.0.4/lib/active_record/relation/where_clause.rb', line 110 def extract_attributes attrs = [] each_attributes { |attr, _| attrs << attr } attrs end |
#hash ⇒ Object
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# File 'lib/rubypitaya/app-template/vendor/bundle/ruby/3.1.0/gems/activerecord-7.0.4/lib/active_record/relation/where_clause.rb', line 81 def hash [self.class, predicates].hash end |
#invert ⇒ Object
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# File 'lib/rubypitaya/app-template/vendor/bundle/ruby/3.1.0/gems/activerecord-7.0.4/lib/active_record/relation/where_clause.rb', line 85 def invert if predicates.size == 1 inverted_predicates = [ invert_predicate(predicates.first) ] else inverted_predicates = [ Arel::Nodes::Not.new(ast) ] end WhereClause.new(inverted_predicates) end |
#merge(other, rewhere = nil) ⇒ Object
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# File 'lib/rubypitaya/app-template/vendor/bundle/ruby/3.1.0/gems/activerecord-7.0.4/lib/active_record/relation/where_clause.rb', line 26 def merge(other, rewhere = nil) predicates = if rewhere except_predicates(other.extract_attributes) else predicates_unreferenced_by(other) end WhereClause.new(predicates | other.predicates) end |
#or(other) ⇒ Object
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# File 'lib/rubypitaya/app-template/vendor/bundle/ruby/3.1.0/gems/activerecord-7.0.4/lib/active_record/relation/where_clause.rb', line 40 def or(other) left = self - other common = self - left right = other - common if left.empty? || right.empty? common else left = left.ast left = left.expr if left.is_a?(Arel::Nodes::Grouping) right = right.ast right = right.expr if right.is_a?(Arel::Nodes::Grouping) or_clause = Arel::Nodes::Or.new(left, right) common.predicates << Arel::Nodes::Grouping.new(or_clause) common end end |
#to_h(table_name = nil, equality_only: false) ⇒ Object
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# File 'lib/rubypitaya/app-template/vendor/bundle/ruby/3.1.0/gems/activerecord-7.0.4/lib/active_record/relation/where_clause.rb', line 61 def to_h(table_name = nil, equality_only: false) equalities(predicates, equality_only).each_with_object({}) do |node, hash| next if table_name&.!= node.left.relation.name name = node.left.name.to_s value = extract_node_value(node.right) hash[name] = value end end |
#|(other) ⇒ Object
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# File 'lib/rubypitaya/app-template/vendor/bundle/ruby/3.1.0/gems/activerecord-7.0.4/lib/active_record/relation/where_clause.rb', line 22 def |(other) WhereClause.new(predicates | other.predicates) end |