#django

Oh, array_position() is new in 9.5

That's why it's not working in that database...

how can I send a context variable to a template in a CreateView?

noregret: get_context_data()

Override that. Don't forget to call super() correctly.

schinckel: thanks

noregret: I like ccbv.co.uk as a reference for all things class-baed.

based

schinckel: I checked it, but i get confused sometimes

schinckel: after trial and error, this worked out for me https://dpaste.de/Z70c =)

Yeah, that will do it. I generally do a context = super(...).get_context_data(...) call first, and then do a context.update(...)

(And return that).

Just means that if any of the parent classes also write the same key, yours will win.

makes sense

schinckel: i want here to put some initial values in a form, so i thought of sending it thru context.

schinckel: because using 'initial' will require me to have the fields already there

schinckel: and i want those fields to appear only in certain conditions

If it's really initial data for a form, then it belongs there.

not sure if i'm clear

Hi. I have one DRF ModelSerializer and set nested field as required=False, but DRF whatever says 'this field is required'. Can anybody help me?

You can dynamically alter the form.fields dict.

That may be a better approach, rather than having that decision made in your template.

schinckel: yeah, but i'm not. I want to add extra fields with values just for display, it won't be posted

schinckel: so i'm using input fields with readonly

not sure if it's the right way to go

You could use input with disabled: that way it won't be sent back.

Or just render the text in a span.

got it

I have model A o2o B and A o2o C. When A is inserted, B or C will follow, not both. In a listing of A, how can i figure out whether B or C is associated with A?

noregret: could you rephrase your question? do you have a B and a C?

xterm: yes, all 3 models

xterm: When A is going to inserted, either B or C will follow it.

noregret: A.objects.filter(Q(b=b) | Q(c=c))

so usually data is found in A&B or A&C models

xterm: got it

xterm: but i wanted to know which is associated with A, not need for filtering

noregret: iirc with o2o through the orm you have navigation from either ends, a.b, a.c, b.a, c.a.

(assuming you have not set a related name ofcourse)

xterm: yeah, so should i just check if a.b.id or a.c.id exists ?

i'm using the default modelform with a createview, i want to hide a field in the template, what can I do here? it should be hidden with an initial value i set in get_form_kwargs()

Folks, I am using djangorestframework, I am getting this error, http://pastebin.com/09Yiusvz , Kindly help to understand this problem

Folks, I am using djangorestframework, I am getting this error, http://pastebin.com/09Yiusvz , Kindly help to resolve and take right steps to solve this problem

indistylo: the import path for GenericForeignKey is: django.contrib.contenttypes.fields.GenericForeignKey

indistylo: check your file guardian/models.py line 8

aRkadeFR :guardian/models.py there is no such file in my directory

/usr/lib/python2.7/dist-packages/guardian/models.py then it is from an external library that is not compatible with Django 1.9