Class: Wice::FilterConditionsGeneratorCustomFilter

Inherits:
FilterConditionsGenerator show all
Defined in:
lib/wice_grid.rb

Overview

:nodoc:

Instance Method Summary collapse

Methods inherited from FilterConditionsGenerator

#initialize

Constructor Details

This class inherits a constructor from Wice::FilterConditionsGenerator

Instance Method Details

#generate_conditions(table_alias, opts) ⇒ Object

:nodoc:



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# File 'lib/wice_grid.rb', line 699

def generate_conditions(table_alias, opts)   #:nodoc:
  if opts.empty? || (opts.is_a?(Array) && opts.size == 1 && opts[0].blank?)
    return false
  end
  opts = (opts.kind_of?(Array) && opts.size == 1) ? opts[0] : opts

  if opts.kind_of?(Array)
    opts_with_special_values, normal_opts = opts.partition{|v| ::Wice::GridTools.special_value(v)}

    conditions_ar = if normal_opts.size > 0
      [" #{@column.alias_or_table_name(table_alias)}.#{@column.name} IN ( " + (['?'] * normal_opts.size).join(', ') + ' )'] + normal_opts
    else
      []
    end

    if opts_with_special_values.size > 0
      special_conditions = opts_with_special_values.collect{|v| " #{@column.alias_or_table_name(table_alias)}.#{@column.name} is " + v}.join(' or ')
      if conditions_ar.size > 0
        conditions_ar[0] = " (#{conditions_ar[0]} or #{special_conditions} ) "
      else
        conditions_ar = " ( #{special_conditions} ) "
      end
    end
    conditions_ar
  else
    if ::Wice::GridTools.special_value(opts)
      " #{@column.alias_or_table_name(table_alias)}.#{@column.name} is " + opts
    else
      [" #{@column.alias_or_table_name(table_alias)}.#{@column.name} = ?", opts]
    end
  end
end