Class: ARCondition

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

Overview

Class for create condition from Array

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(condition = nil, operator = 'AND') ⇒ ARCondition

Returns a new instance of ARCondition.



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# File 'lib/ar_condition/ar_condition.rb', line 8

def initialize(condition=nil, operator='AND')
  @conditions = []
  @operator = operator
  add(condition) if condition
end

Instance Attribute Details

#conditions ⇒ Object (readonly)

Returns Array



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# File 'lib/ar_condition/ar_condition.rb', line 5

def conditions
  @conditions
end

#operator=(value) ⇒ Object (writeonly)

Sets the attribute operator

Parameters:

  • value —

    the value to set the attribute operator to.



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# File 'lib/ar_condition/ar_condition.rb', line 6

def operator=(value)
  @operator = value
end

Instance Method Details

#<<(condition) ⇒ Object 



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# File 'lib/ar_condition/ar_condition.rb', line 34

def <<(condition)    
  add(condition)
end

#add(condition) ⇒ Object 



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# File 'lib/ar_condition/ar_condition.rb', line 14

def add(condition)
  if condition.is_a?(Array)
    if @conditions.size > 0
      @conditions.first << " #{@operator} (#{condition.first}) "
    else
      @conditions << " (#{condition.first}) "
    end
     @conditions += condition[1..-1]
  elsif condition.is_a?(String)
    if @conditions.size > 0
      @conditions.first << " #{@operator} (#{condition})"
    else
      @conditions << " (#{condition})"
    end
  else
    raise "Unsupported #{condition.class} condition: #{condition}"
  end
  self
end