Class: Babik::Selection::Operation::In

Inherits:
Base
  • Object
show all
Defined in:
lib/babik/queryset/lib/selection/operation/operations.rb

Overview

IN operation

Instance Attribute Summary

Attributes inherited from Base

#field, #sql_operation, #sql_operation_template, #value

Instance Method Summary collapse

Methods inherited from Base

date_special_cases, #db_engine, escape, factory, initialize_operation, initialize_operators, operator?, special_cases, #to_s

Constructor Details

#initialize(field, value) ⇒ In

Returns a new instance of In.



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# File 'lib/babik/queryset/lib/selection/operation/operations.rb', line 46

def initialize(field, value)
  _init_value(value)
  super(field, '?field IN ?value', @value)
end

Instance Method Details

#_init_sql_operation ⇒ Object 



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# File 'lib/babik/queryset/lib/selection/operation/operations.rb', line 72

def _init_sql_operation
  @sql_operation = @sql_operation_template.sub('?field', @field).sub('?value', @value)
end

#_init_value(value) ⇒ Object 



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# File 'lib/babik/queryset/lib/selection/operation/operations.rb', line 51

def _init_value(value)
  if value.class == Array
    values = value.map do |value_i|
      if value_i.is_a?(String)
        self.class.escape(value_i)
      elsif value_i.is_a?(ActiveRecord::Base)
        value_i.id
      else
        value_i
      end
    end
    @value = "(#{values.join(', ')})"
  elsif value.class == Babik::QuerySet::Base
    @value = "(#{value.sql.select})"
  elsif value.class == String
    @value = "('#{self.class.escape(value)}')"
  else
    @value = "(#{value})"
  end
end