Below you will find the models that I've created for this project. I recommend that you all use the same models as me to make it easier for troubleshooting.
By now you should have created an app in your project folder (I created 2) and attempted to model the database we will need based on the requirements listed in the last task. See my models below that is a good starting point. I've tried to comment in them to explain what's going on. If you have a question let me know.
# recipe/models.py
from django.db import models
from django.contrib.auth.models import User
# python module for dates and time
import datetime
class FoodType(models.Model):
# always set a character length
# blank = False and null = False make the field required
name = models.CharField(max_length = 100, blank = False, null = False)
def __unicode__(self):
return '%s' % self.name
class Recipe(models.Model):
title = models.CharField(max_length = 100, blank = False, null = False)
# this is a many to many since a dish can have more than one food type
food_type = models.ManyToManyField(FoodType)
added_by = models.ForeignKey(User)
# this tells the model to automatically timestamp it when it is added
date_added = models.DateField(auto_now_add=True, default=datetime.datetime.now)
instructions = models.TextField(max_length = 2000, blank = False, null = False)
ingredients = models.TextField(max_length = 1000)
def __unicode__(self):
return '%s' % self.title
-------------------
# account/models.py
from django.db import models
from django.contrib.auth.models import User
from recipe.models import FoodType
# Create your models here.
class UserProfile(models.Model):
user = models.OneToOneField(User)
summary = models.TextField(max_length = 500)
specialty = models.ManyToManyField(FoodType)
# This makes objects from this model readable in the admin and in shell
def __unicode__(self):
return '%s [%s]' % (self.user, self.pk)
# if the UserProfile does not exist then create one
# adds a property to the User model for convenience instead of having to do get_profile()
# see http://www.turnkeylinux.org/blog/django-profile
User.profile = property(lambda u: UserProfile.objects.get_or_create(user=u)[0])
---------------
# account/admin.py
from django.contrib import admin
# import your models here
# for convenience I put all the models into one admin.py file
from recipe.models import FoodType, Recipe
from account.models import UserProfile
# creating a list of the models since the register() function
# won't take all of them as arguments
registered_models = [FoodType, Recipe, UserProfile]
admin.site.register(registered_models)
---------
-
In settings.py make sure you add your newly created apps and enable the django admin. Also add 'south' to it. If you don't already have south installed do $ sudo pip install south
-
In urls.py comment out the parts about the admin (there are 3 lines you need to uncomment to get it working)
-
Now let's sync our database by doing $ python manage.py syncdb
-
Create a superuser when you are prompted as this is the account you will use to log in to the admin.
-
Do the initial migration (please review south documentation for full explanations. South is a lifesaver, trust me):
-
$ python manage.py schemamigration account
-
$ python manage.py schemamigration recipe --initial
-
$ python manage.py migrate --fake
Now let's fire up our dev server $ python manage.py runserver
and go to http://127.0.0.1:8000/admin. If all goes well it should allow you to log in and see the models we've created. Test out our models by creating some objects in the admin. This is an awesome and easy way to see if our models make sense and test them.
I also highly recommend you use the shell and use the database API to try and retrieve the objects you've created in a pythonic way: $ python manage.py shell
Try these out:
from recipe.models import Recipe, FoodType
food = Recipe.objects.get(pk=1) #assuming you've created a recipe already
food.title
food.instructions
person = food.added_by
person.profile.summary
