Class: Arel::Nodes::Unary
- Inherits:
-
NodeExpression
- Object
- Node
- NodeExpression
- Arel::Nodes::Unary
- Defined in:
- activerecord/lib/arel/nodes/unary.rb
Direct Known Subclasses
Else, Extract, Following, Grouping, Ordering, Preceding, Quoted, Range, Rows, UnaryOperation, UnqualifiedColumn, ValuesList, With
Instance Attribute Summary collapse
-
#expr ⇒ Object
(also: #value)
Returns the value of attribute expr.
Instance Method Summary collapse
- #eql?(other) ⇒ Boolean (also: #==)
- #hash ⇒ Object
-
#initialize(expr) ⇒ Unary
constructor
A new instance of Unary.
Methods included from Math
#&, #*, #+, #-, #/, #<<, #>>, #^, #|, #~@
Methods included from OrderPredications
Methods included from AliasPredication
Methods included from Predications
#between, #concat, #contains, #does_not_match, #does_not_match_all, #does_not_match_any, #does_not_match_regexp, #eq, #eq_all, #eq_any, #gt, #gt_all, #gt_any, #gteq, #gteq_all, #gteq_any, #in, #in_all, #in_any, #is_distinct_from, #is_not_distinct_from, #lt, #lt_all, #lt_any, #lteq, #lteq_all, #lteq_any, #matches, #matches_all, #matches_any, #matches_regexp, #not_between, #not_eq, #not_eq_all, #not_eq_any, #not_in, #not_in_all, #not_in_any, #overlaps, #quoted_array, #when
Methods included from Expressions
#average, #count, #extract, #maximum, #minimum, #sum
Methods inherited from Node
#and, #equality?, #fetch_attribute, #invert, #not, #or, #to_sql
Methods included from FactoryMethods
#coalesce, #create_and, #create_false, #create_join, #create_on, #create_string_join, #create_table_alias, #create_true, #grouping, #lower
Constructor Details
#initialize(expr) ⇒ Unary
Returns a new instance of Unary.
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# File 'activerecord/lib/arel/nodes/unary.rb', line 9 def initialize(expr) super() @expr = expr end |
Instance Attribute Details
#expr ⇒ Object Also known as: value
Returns the value of attribute expr
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# File 'activerecord/lib/arel/nodes/unary.rb', line 6 def expr @expr end |
Instance Method Details
#eql?(other) ⇒ Boolean Also known as: ==
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# File 'activerecord/lib/arel/nodes/unary.rb', line 18 def eql?(other) self.class == other.class && self.expr == other.expr end |
#hash ⇒ Object
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# File 'activerecord/lib/arel/nodes/unary.rb', line 14 def hash @expr.hash end |