Thanks for the help Stephen. On Wednesday, April 15, 2015 at 11:53:09 AM UTC-5, Stephen Butler wrote: > > Or, if you know all the Model classes are in the same module that > you've imported, it should be as easy as: > > from myapp import models > > model_class = getattr(models, tableName) > > On Wed, Apr 15, 2015 at 11:50 AM, Stephen J. Butler > <stephen...@gmail.com <javascript:>> wrote: > > Classes (MyModel) are attributes of the module (myapp.models). No > > reason to use eval. You can get the module from importlib and then the > > class from using getattr() on the module. > > > > > http://stackoverflow.com/questions/10773348/get-python-class-object-from-string > > > > > > > > > On Wed, Apr 15, 2015 at 11:45 AM, Henry Versemann <fence...@gmail.com > <javascript:>> wrote: > >> I have an incoming list of DB table names associated with my > application. I > >> want to iterate through this list of table names getting all of the > entries > >> for each table and then print some data from each tables' entry to a > file. > >> I've tried to write this so I can use it for as many app-associated > tables > >> as possible. > >> > >> My problem is since the logic won't know which tables will be in the > >> incoming list I need to try to reference the entries in each table > using > >> some kind of evaluated version of a variable containing the name of > each > >> table, as I iterate through the list. > >> > >> I'm sure I could do this using an "eval" statement like this > >> > >> tblComannd = "tblEntryLst = " + str(tableName) + ".objects.all()" > >> > >> eval(tblComannd) > >> > >> but I also know that the "eval" statement is not the safest thing to > use. > >> > >> So far I've tried to reference the table name in the following ways: > >> > >> tblEntryLst = str(tableName).objects.all() > >> tblEntryLst = tableName.objects.all() > >> > >> with no success at all and only an AttributeError exception being the > >> result. > >> > >> I think its possible since I've successfully done some similar things > with > >> referencing and saving the values of unknown keys for dictionaries > similar > >> to this: > >> > >> new_dictionary[str(extracted_key)] = old_dictionary[str(extracted_key)] > >> > >> but don't know this for sure. > >> > >> Can someone please confirm if this is indeed possible to do or not, and > if > >> so give a general format or example for how to do it? > >> > >> Any help would be much appreciated. > >> > >> Thanks. > >> > >> Henry > >> > >> > >> -- > >> You received this message because you are subscribed to the Google > Groups > >> "Django users" group. > >> To unsubscribe from this group and stop receiving emails from it, send > an > >> email to django-users...@googlegroups.com <javascript:>. > >> To post to this group, send email to django...@googlegroups.com > <javascript:>. > >> Visit this group at http://groups.google.com/group/django-users. > >> To view this discussion on the web visit > >> > https://groups.google.com/d/msgid/django-users/e3430efb-7fc2-4baf-931b-6ec8d8580315%40googlegroups.com. > > > >> For more options, visit https://groups.google.com/d/optout. >
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