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getsucols now in ECHO_helpers and as method for ECH_resource added.

    1: def getSubCols(self,sortfield="weight"):
    2: 
    3:         subColTypes=['ECHO_collection','ECHO_externalLink','ECHO_resource']
    4:         ids=[]
    5:         for entry in self.__dict__.keys():
    6:             object=getattr(self,entry)
    7:             try:
    8:                 if object.meta_type in subColTypes:
    9:                     ids.append(object)
   10:                     
   11:             except:
   12:                 """nothing"""
   13:         try:
   14:             sortfield=self.sortfield
   15:         except:
   16:             """nothing"""
   17:             
   18:         tmplist=[]
   19:         for x in ids:
   20:             if hasattr(x,sortfield):
   21:                 try:
   22:                     x=int(x)
   23:                 except:
   24:                     """nothing"""
   25:                 tmp=getattr(x,sortfield)
   26:             else:
   27:                 tmp=10000000
   28:             tmplist.append((tmp,x))
   29:         tmplist.sort()
   30:         return [x for (key,x) in tmplist]