django 学习杂记

django1.9 学习路径 http://python.usyiyi.cn/django/intro/tutorial02.html

django 中url路径带参数,在view中应该如何处理

应该将拦截参数的正则表达式扩起来,用来明确告诉django,这是view 函数所以需要的参数,如下

(r'^time/plus/(\d{1,2})/$', hours_ahead),

否则,页面会把参数当成普通路径,报出TypeError错误,如下:

 

 

 

无论怎么弄,django都会报出 TemplateDoesNotExist 错误,

(同时已配置TEMPLATE_DIR),如图:

原因:没有配置TEMPLATE的DIR参数:

 

补上:

 

model

 

1.创建一个项目
django-admin startproject projectName
2.运行开发服务器
python manage.py runserver
3.为项目添加应用
python manage.py startapp appName
4.在项目的应用中创建相应模型
appName/models.py


from django.db import models


class Model1(models.Model):
question_text = models.CharField(max_length=200)
pub_date = models.DateTimeField('date published')


class Model2(models.Model):
question = models.ForeignKey(Question)
choice_text = models.CharField(max_length=200)
votes = models.IntegerField(default=0)

5.在project/setting.py中激活模型(插入app)
projectName/setting.py

INSTALLED_APPS = (
appName,
)

6.创建迁移文件,让django保存app的变化
python manage.py makemigrations appName

7.查看模型对应的sql语句
python manage.py sqlmigrate appName 0001(迁移文件名称)

8.创建模型对应的数据库表
python manage.py migrate

#################################################################
#three-step guide to making model changes #
#1.修改你的模型(在models.py文件中) #
#2.运行python manage.py makemigrations ,为这些修改创建迁移文件 #
#3.运行python manage.py migrate ,将这些改变更新到数据库中 #
#################################################################

admin账号

 

admin 管理并设置不同的样式:

 1 from django.contrib import admin
 2 from models import Publisher, Author, Book
 3 # Register your models here.
 4 
 5 class PublisherAdmin(admin.ModelAdmin):
 6     fields = ['name', 'address', 'city', 'state_province', 'country', 'website']
 7 
 8 class AuthorAdmin(admin.ModelAdmin):
 9     fieldsets = [
10         ('Name',  {'fields':['first_name', 'last_name']}),
11         ('Email', {'fields':['email']}),
12     ]
13 
14 class BookAdmin(admin.ModelAdmin):
15     fieldsets = [
16         ('Title',            {'fields':['title']}),
17         ('Authors',          {'fields':['authors'], 'classes':['collapse']}),
18         ('Publisher',        {'fields':['publisher']}),
19         (None,                 {'fields':['publication_date']}),
20     ]
21 admin.site.register(Publisher, PublisherAdmin)
22 admin.site.register(Author, AuthorAdmin)
23 admin.site.register(Book, BookAdmin)

 

posted @ 2015-12-10 11:29  pyfreshman  阅读(187)  评论(0编辑  收藏  举报