django-inheritance

How to register inherited sub class in admin.py file in django?

由 北战南征 提交于 2021-01-29 07:21:06
问题 Project Name : fusion App Name : admin_lte Python 3.7 Django 2 MySql Question is "I want to register sub model in django admin-panel",when i write code for model registration in admin.py file that time occurred below error. django.core.exceptions.ImproperlyConfigured: The model Device is abstract, so it cannot be registered with admin. NOTE : I used multiple separated model file. device.py (Model File) from django.db import models class Device(models.Model): device_type = models.CharField(max

Control object creation flow in Django inheritance models

由 ♀尐吖头ヾ 提交于 2020-05-15 07:19:51
问题 I have been read some Django document about inheritance models and parent_link . Suppose that I have these models: class Parent(models.Model): #Some field goes here! class Child(Parent): #Some field goes here! I have 3 questions about this pattern: What should I do if I want to create new child object and pass id of existing parent to that? What should I do if I want to create just new child object and after a while create parent object for that child? Also I din't understand this document

Control object creation flow in Django inheritance models

由 大憨熊 提交于 2020-05-15 07:19:45
问题 I have been read some Django document about inheritance models and parent_link . Suppose that I have these models: class Parent(models.Model): #Some field goes here! class Child(Parent): #Some field goes here! I have 3 questions about this pattern: What should I do if I want to create new child object and pass id of existing parent to that? What should I do if I want to create just new child object and after a while create parent object for that child? Also I din't understand this document

Control object creation flow in Django inheritance models

由 核能气质少年 提交于 2020-05-15 07:17:09
问题 I have been read some Django document about inheritance models and parent_link . Suppose that I have these models: class Parent(models.Model): #Some field goes here! class Child(Parent): #Some field goes here! I have 3 questions about this pattern: What should I do if I want to create new child object and pass id of existing parent to that? What should I do if I want to create just new child object and after a while create parent object for that child? Also I din't understand this document

How can I create an inherited django model instance from an existing base model instance?

由 别等时光非礼了梦想. 提交于 2020-01-15 01:23:25
问题 I have two django models like these: class Place(models.Model): name = models.CharField(max_length=50) address = models.CharField(max_length=80) class Restaurant(Place): serves_hot_dogs = models.BooleanField() serves_pizza = models.BooleanField() I had previously created a Place instance, like this: sixth_ave_street_vendor = Place(name='Bobby Hotdogs', address='6th Ave') sixth_ave_street_vendor.save() Now bobby has upgraded his street vendor to a restaurant. How can I do that in my code?! Why

Querying from child of model given django inheritance and m2m link to parent

由 守給你的承諾、 提交于 2019-12-25 14:09:24
问题 Among my models, I have Exercise which has a m2m link to Workout. I also have WorkoutPlan and LogBook which are types of Workouts. WorkoutPlan is where ideal workouts are stored. LogBook is where a user stores the workout they actually completed. They can also link a LogBook to a WorkoutPlan to indicate that the actual performance was connected to an original ideal plan. class Exercise(NameDescModel): muscles = models.ManyToManyField(Muscle, blank=True) groups = models.ManyToManyField(Group,

Querying from child of model given django inheritance and m2m link to parent

由 与世无争的帅哥 提交于 2019-12-25 14:08:21
问题 Among my models, I have Exercise which has a m2m link to Workout. I also have WorkoutPlan and LogBook which are types of Workouts. WorkoutPlan is where ideal workouts are stored. LogBook is where a user stores the workout they actually completed. They can also link a LogBook to a WorkoutPlan to indicate that the actual performance was connected to an original ideal plan. class Exercise(NameDescModel): muscles = models.ManyToManyField(Muscle, blank=True) groups = models.ManyToManyField(Group,

Django templates: overriding blocks of included children templates through an extended template

由 牧云@^-^@ 提交于 2019-12-20 16:17:11
问题 I'm wondering if anyone knows how to deal with the following quirky template structure: ### base.html <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <title> {% block title %} Title of the page {% endblock %} </title> </head> <body> <header> {% block header %} {% include "base/header.html" %} {% endblock header %} </header> {% block content %}{% endblock %} </body> </html> ### base/header.html <div id="menu-bar"> {% block nav %} {% include "base/nav.html" %} {%

seperate 'admin' interfaces for different user types in django

由 谁都会走 提交于 2019-12-09 12:59:29
问题 I have recently being trying to create a project which has several levels of user involved. (Just an example of an abbreviated and rough schema) ME (Super User) Client (s) Customer (s) Survey Collections SurveyUser (s) Invitee (s) Surveys Invitee (s) (invitee is a child of both survey and user) Questions Etc I would ideally have: www.example.com/client/ go to a client interface which you had to be a client to access www.example.com/customer/ go to a customer interface which you had to be a

Subclassing AbstractUser in Django for two types of users

由 ▼魔方 西西 提交于 2019-12-06 16:54:14
问题 I'm developing a school database system in Django 1.5, and was planning on having a number of different user types (Student, Staff, Parent) which subclass AbstractUser (actually, another abstract subclass of AbstractUser). I was just attempting to add an externally developed app to my system, which uses User in a ForeignKey for some of its models, however, this fails as my user type is not a 'User' instance. I can't set the apps models to use AbstractUser as one can't use abstract classes for
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