added hasProperty

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@36 20353a03-c40f-0410-a6d1-a30d3c3de9de

product/ERP5Type/ZopePatch.py

@@ -47,6 +47,13 @@ class ERP5PropertyManager(PropertyManager):
               value=type_converters[proptype](value)
       self._setPropValue(id, value)
 
+  def hasProperty(self, id):
+      """Return true if object has a property 'id'"""
+      for p in self.propertyIds():
+          if id==p:
+              return 1
+      return 0
+
   def getPropertyType(self, id):
       """Get the type of property 'id', returning None if no
         such property exists"""