Class: RQuery::OperationCollector

Inherits:
Object
  • Object
show all
Defined in:
lib/rquery/operation_collector.rb

Constant Summary collapse

NOT_PREFIX = 
'not_'
NIL_PREFIX = 
''

Instance Method Summary collapse

Constructor Details

#initialize ⇒ OperationCollector

Returns a new instance of OperationCollector.



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# File 'lib/rquery/operation_collector.rb', line 6

def initialize
  # @name, @prefix = optns[:name], optns[:prefix]
  @operations = []
  @values = []
end

Instance Method Details

#&(second) ⇒ Object

used to group operations for anding on a single line example with sqlite adapter (user.age.in [1,2,3]) | (user.name.contains “foo”)

>(age in (?) and name like ‘%’ || ‘foo’ || ‘%’)

note that second is not used in this case because it should have been collected into the @operations array earlier



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# File 'lib/rquery/operation_collector.rb', line 35

def &(second)
  @operations << AndOperationsGroup.new(tail_ops!(2))
  self
end

#add_operation(val) ⇒ Object

add and operation to the @operations array which will be popped and pushed depending on the operations sequence and arrangement



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# File 'lib/rquery/operation_collector.rb', line 23

def add_operation(val)
  @operations << val.to_s
  self
end

#between(*args) ⇒ Object Also known as: from 



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# File 'lib/rquery/operation_collector.rb', line 53

def between(*args)
  call_between(NIL_PREFIX, *args)
end

#contains(str) ⇒ Object 



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# File 'lib/rquery/operation_collector.rb', line 61

def contains(str)
  @values << str
  chain :contains
end

#in(*args) ⇒ Object 



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# File 'lib/rquery/operation_collector.rb', line 45

def in(*args)
  call_in(NIL_PREFIX, *args)
end

#not=(arg) ⇒ Object 



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# File 'lib/rquery/operation_collector.rb', line 71

def not=(arg)
  @values << arg
  chain :neq
end

#not_between(*args) ⇒ Object Also known as: not_from 



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# File 'lib/rquery/operation_collector.rb', line 57

def not_between(*args)
  call_between(NOT_PREFIX, *args)
end

#not_in(*args) ⇒ Object 



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# File 'lib/rquery/operation_collector.rb', line 49

def not_in(*args)
  call_in(NOT_PREFIX, *args)
end

#to_conditions ⇒ Object

return a conditions array for use with ActiveRecord.find



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# File 'lib/rquery/operation_collector.rb', line 17

def to_conditions
  [to_s] + @values
end

#to_s ⇒ Object 



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# File 'lib/rquery/operation_collector.rb', line 12

def to_s
  RQuery::Config.adapter.join(@operations)
end

#without(str) ⇒ Object 



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# File 'lib/rquery/operation_collector.rb', line 66

def without(str)
  @values << str
  chain :without
end

#|(second) ⇒ Object 



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# File 'lib/rquery/operation_collector.rb', line 40

def |(second)
  @operations << OrOperationsGroup.new(tail_ops!(2))
  self
end