Class: SQLConstructor::BasicUnion

Inherits:
GenericQuery show all
Defined in:
lib/sqlconstructor.rb

Overview

Internal class which represents a basic UNION statement.

Instance Attribute Summary

Attributes inherited from GenericQuery

#attr_index_hints, #caller, #child_caller, #dialect, #exporter, #string, #tidy, #type

Attributes inherited from SQLObject

#alias, #inline, #name, #separator

Instance Method Summary collapse

Methods inherited from GenericQuery

#to_str

Methods inherited from SQLObject

#_name, #_string, #_string=, get

Constructor Details

#initialize(_caller, type) ⇒ BasicUnion

Class contructor. Takes a caller object as the first argument and UNION

type as the second argument. Inits @obj to new SQLConstructor instance



491
492
493
494
495
 
# File 'lib/sqlconstructor.rb', line 491

def initialize ( _caller, type )
    @type = type
    super _caller
    @obj = SQLConstructor.new( :dialect => @dialect, :tidy => @tidy )
end

Dynamic Method Handling

This class handles dynamic methods through the method_missing method

#method_missing(method, *args) ⇒ Object

Send call to @obj



521
522
523
 
# File 'lib/sqlconstructor.rb', line 521

def method_missing ( method, *args )
    @obj.send method, *args
end

Instance Method Details

#_get(*args) ⇒ Object

Override GenericQuery method and send call to @obj



507
508
509
 
# File 'lib/sqlconstructor.rb', line 507

def _get ( *args )
    @obj._get *args
end

#_remove(*args) ⇒ Object

Override GenericQuery method and send call to @obj



514
515
516
 
# File 'lib/sqlconstructor.rb', line 514

def _remove ( *args )
    @obj._remove *args
end

#to_s ⇒ Object

Export to string



500
501
502
 
# File 'lib/sqlconstructor.rb', line 500

def to_s
    @type + @caller.exporter.separator + @obj.to_s
end