Class: Lafcadio::Query::CompoundCondition

Inherits:
Condition
  • Object
show all
Defined in:
lib/lafcadio/query/CompoundCondition.rb

Overview

:nodoc:

Constant Summary collapse

AND = 
1
OR = 
2

Instance Attribute Summary

Attributes inherited from Condition

#objectType

Instance Method Summary collapse

Methods inherited from Condition

#dbFieldName, #getField, #not, #primaryKeyField?, searchTermType

Constructor Details

#initialize(*conditions) ⇒ CompoundCondition

Returns a new instance of CompoundCondition.



9
10
11
12
13
14
15
16
17
18
 
# File 'lib/lafcadio/query/CompoundCondition.rb', line 9

def initialize(*conditions)
	if( [ AND, OR ].index(conditions.last) )
		@compoundType = conditions.last
		conditions.pop
	else
		@compoundType = AND
	end
	@conditions = conditions
	@objectType = conditions[0].objectType
end

Instance Method Details

#objectMeets(anObj) ⇒ Object 



26
27
28
29
30
31
32
33
34
35
36
 
# File 'lib/lafcadio/query/CompoundCondition.rb', line 26

def objectMeets(anObj)
	if @compoundType == AND
		om = true
		@conditions.each { |cond| om = om && cond.objectMeets(anObj) }
		om
	else
		om = false
		@conditions.each { |cond| om = om || cond.objectMeets(anObj) }
		om
	end
end

#toSql ⇒ Object 



20
21
22
23
24
 
# File 'lib/lafcadio/query/CompoundCondition.rb', line 20

def toSql
	booleanString = @compoundType == AND ? 'and' : 'or'
	subSqlStrings = @conditions.collect { |cond| cond.toSql }
	"(#{ subSqlStrings.join(" #{ booleanString } ") })"
end