Class: Arel::Nodes::SelectStatement
Do not use. This class is for internal use only.
Relationships & Source Files | |
Super Chains via Extension / Inclusion / Inheritance | |
Class Chain:
self,
NodeExpression ,
Node
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Instance Chain:
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Inherits: |
Arel::Nodes::NodeExpression
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Defined in: | activerecord/lib/arel/nodes/select_statement.rb |
Class Method Summary
- .new(relation = nil) ⇒ SelectStatement constructor
Instance Attribute Summary
Instance Method Summary
-
#==(other)
Alias for #eql?.
- #eql?(other) ⇒ Boolean (also: #==)
- #hash
- #initialize_copy(other)
::Arel::Math
- Included
::Arel::OrderPredications
- Included
::Arel::AliasPredication
- Included
::Arel::Predications
- Included
::Arel::Expressions
- Included
Node
- Inherited
#and | Factory method to create an And node. |
#fetch_attribute, #invert, | |
#not | Factory method to create a |
#or | |
#to_sql | FIXME: this method should go away. |
::Arel::FactoryMethods
- Included
#cast, #coalesce, #create_and, #create_false, #create_join, #create_on, #create_string_join, #create_table_alias, #create_true, #grouping, | |
#lower | Create a LOWER() function. |
Constructor Details
.new(relation = nil) ⇒ SelectStatement
# File 'activerecord/lib/arel/nodes/select_statement.rb', line 9
def initialize(relation = nil) super() @cores = [SelectCore.new(relation)] @orders = [] @limit = nil @lock = nil @offset = nil @with = nil end
Instance Attribute Details
#cores (readonly)
[ GitHub ]# File 'activerecord/lib/arel/nodes/select_statement.rb', line 6
attr_reader :cores
#limit (rw)
[ GitHub ]#lock (rw)
[ GitHub ]#offset (rw)
[ GitHub ]#orders (rw)
[ GitHub ]#with (rw)
[ GitHub ]Instance Method Details
#==(other)
Alias for #eql?.
# File 'activerecord/lib/arel/nodes/select_statement.rb', line 38
alias :== :eql?
#eql?(other) ⇒ Boolean
Also known as: #==
#hash
[ GitHub ]# File 'activerecord/lib/arel/nodes/select_statement.rb', line 25
def hash [@cores, @orders, @limit, @lock, @offset, @with].hash end
#initialize_copy(other)
[ GitHub ]# File 'activerecord/lib/arel/nodes/select_statement.rb', line 19
def initialize_copy(other) super @cores = @cores.map { |x| x.clone } @orders = @orders.map { |x| x.clone } end