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jackfruedjackfrued
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更新了Django第4天代码
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‎Day31-Day35/car/car/__init__.py

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import pymysql
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pymysql.install_as_MySQLdb()

‎Day31-Day35/car/car/settings.py

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"""
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Django settings for car project.
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Generated by 'django-admin startproject' using Django 2.0.5.
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For more information on this file, see
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https://docs.djangoproject.com/en/2.0/topics/settings/
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For the full list of settings and their values, see
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https://docs.djangoproject.com/en/2.0/ref/settings/
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"""
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import os
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# Build paths inside the project like this: os.path.join(BASE_DIR, ...)
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BASE_DIR = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
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# Quick-start development settings - unsuitable for production
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# See https://docs.djangoproject.com/en/2.0/howto/deployment/checklist/
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# SECURITY WARNING: keep the secret key used in production secret!
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SECRET_KEY = 'ol6dmf6im(w!l*z4w+_whm&)8@(c7%4&tlhd%uh6$lfx=pi*5e'
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# SECURITY WARNING: don't run with debug turned on in production!
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DEBUG = True
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ALLOWED_HOSTS = []
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# Application definition
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INSTALLED_APPS = [
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'django.contrib.admin',
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'django.contrib.auth',
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'django.contrib.contenttypes',
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'django.contrib.sessions',
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'django.contrib.messages',
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'django.contrib.staticfiles',
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'search',
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]
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MIDDLEWARE = [
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'django.middleware.security.SecurityMiddleware',
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'django.contrib.sessions.middleware.SessionMiddleware',
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'django.middleware.common.CommonMiddleware',
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'django.middleware.csrf.CsrfViewMiddleware',
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'django.contrib.auth.middleware.AuthenticationMiddleware',
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'django.contrib.messages.middleware.MessageMiddleware',
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'django.middleware.clickjacking.XFrameOptionsMiddleware',
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]
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ROOT_URLCONF = 'car.urls'
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TEMPLATES = [
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{
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'BACKEND': 'django.template.backends.django.DjangoTemplates',
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'DIRS': [os.path.join(BASE_DIR, 'templates')]
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,
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'APP_DIRS': True,
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'OPTIONS': {
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'context_processors': [
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'django.template.context_processors.debug',
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'django.template.context_processors.request',
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'django.contrib.auth.context_processors.auth',
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'django.contrib.messages.context_processors.messages',
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],
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},
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},
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]
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WSGI_APPLICATION = 'car.wsgi.application'
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# Database
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# https://docs.djangoproject.com/en/2.0/ref/settings/#databases
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DATABASES = {
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'default': {
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'ENGINE': 'django.db.backends.mysql',
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'NAME': 'car',
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'HOST': 'localhost',
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'PORT': 3306,
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'USER': 'root',
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'PASSWORD': '123456',
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}
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}
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# Password validation
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# https://docs.djangoproject.com/en/2.0/ref/settings/#auth-password-validators
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AUTH_PASSWORD_VALIDATORS = [
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{
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'NAME': 'django.contrib.auth.password_validation.UserAttributeSimilarityValidator',
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},
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{
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'NAME': 'django.contrib.auth.password_validation.MinimumLengthValidator',
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},
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{
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'NAME': 'django.contrib.auth.password_validation.CommonPasswordValidator',
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},
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{
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'NAME': 'django.contrib.auth.password_validation.NumericPasswordValidator',
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},
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]
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# Internationalization
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# https://docs.djangoproject.com/en/2.0/topics/i18n/
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LANGUAGE_CODE = 'en-us'
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TIME_ZONE = 'UTC'
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USE_I18N = True
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USE_L10N = True
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USE_TZ = True
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# Static files (CSS, JavaScript, Images)
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# https://docs.djangoproject.com/en/2.0/howto/static-files/
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STATICFILES_DIRS = [os.path.join(BASE_DIR, 'static')]
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STATIC_URL = '/static/'

‎Day31-Day35/car/car/urls.py

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"""car URL Configuration
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The `urlpatterns` list routes URLs to views. For more information please see:
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https://docs.djangoproject.com/en/2.0/topics/http/urls/
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Examples:
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Function views
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1. Add an import: from my_app import views
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2. Add a URL to urlpatterns: path('', views.home, name='home')
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Class-based views
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1. Add an import: from other_app.views import Home
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2. Add a URL to urlpatterns: path('', Home.as_view(), name='home')
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Including another URLconf
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1. Import the include() function: from django.urls import include, path
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2. Add a URL to urlpatterns: path('blog/', include('blog.urls'))
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"""
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from django.contrib import admin
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from django.conf.urls import url
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from search import views
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urlpatterns = [
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url(r'^search$', views.search),
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url(r'^search2$', views.ajax_search),
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url(r'^add', views.add),
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url(r'^admin/', admin.site.urls),
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]

‎Day31-Day35/car/car/wsgi.py

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"""
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WSGI config for car project.
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It exposes the WSGI callable as a module-level variable named ``application``.
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For more information on this file, see
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https://docs.djangoproject.com/en/2.0/howto/deployment/wsgi/
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"""
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import os
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from django.core.wsgi import get_wsgi_application
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os.environ.setdefault("DJANGO_SETTINGS_MODULE", "car.settings")
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application = get_wsgi_application()

‎Day31-Day35/car/manage.py

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#!/usr/bin/env python
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import os
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import sys
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if __name__ == "__main__":
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os.environ.setdefault("DJANGO_SETTINGS_MODULE", "car.settings")
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try:
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from django.core.management import execute_from_command_line
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except ImportError as exc:
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raise ImportError(
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"Couldn't import Django. Are you sure it's installed and "
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"available on your PYTHONPATH environment variable? Did you "
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"forget to activate a virtual environment?"
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) from exc
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execute_from_command_line(sys.argv)

‎Day31-Day35/car/search/__init__.py

Whitespace-only changes.

‎Day31-Day35/car/search/admin.py

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from django.contrib import admin
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from search.models import CarRecord
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class CarRecordAdmin(admin.ModelAdmin):
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list_display = ('carno', 'reason', 'date', 'punish', 'isdone')
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search_fields = ('carno', )
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admin.site.register(CarRecord, CarRecordAdmin)

‎Day31-Day35/car/search/apps.py

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from django.apps import AppConfig
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class SearchConfig(AppConfig):
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name = 'search'

‎Day31-Day35/car/search/migrations/0001_initial.py

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# -*- coding: utf-8 -*-
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# Generated by Django 1.11 on 2018-05-24 01:16
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from __future__ import unicode_literals
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from django.db import migrations, models
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class Migration(migrations.Migration):
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initial = True
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dependencies = [
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]
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operations = [
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migrations.CreateModel(
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name='CarRecord',
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fields=[
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('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
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('carno', models.CharField(max_length=7)),
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('reason', models.CharField(max_length=50)),
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('date', models.DateTimeField(db_column='happen_date')),
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('punlish', models.CharField(max_length=50)),
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('isdone', models.BooleanField(default=False)),
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],
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options={
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'db_table': 'tb_car_record',
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},
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),
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]

‎Day31-Day35/car/search/migrations/0002_auto_20180524_1420.py

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# -*- coding: utf-8 -*-
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# Generated by Django 1.11 on 2018-05-24 06:20
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from __future__ import unicode_literals
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from django.db import migrations
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class Migration(migrations.Migration):
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dependencies = [
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('search', '0001_initial'),
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]
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operations = [
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migrations.AlterModelOptions(
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name='carrecord',
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options={'ordering': ('-date',)},
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),
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migrations.RenameField(
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model_name='carrecord',
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old_name='punlish',
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new_name='punish',
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),
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]

‎Day31-Day35/car/search/migrations/__init__.py

Whitespace-only changes.

‎Day31-Day35/car/search/models.py

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from django.db import models
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class CarRecord(models.Model):
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carno = models.CharField(max_length=7)
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reason = models.CharField(max_length=50)
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date = models.DateTimeField(db_column='happen_date', auto_now_add=True)
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punish = models.CharField(max_length=50)
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isdone = models.BooleanField(default=False)
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@property
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def happen_date(self):
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return self.date.strftime('%Y-%m-%d %H:%M:%S')
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"""
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return '%d年%02d月%02d日 %02d:%02d:%02d' % \
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(self.date.year, self.date.month, self.date.day,
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self.date.hour, self.date.minute, self.date.second)
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"""
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class Meta:
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db_table = 'tb_car_record'
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ordering = ('-date', )

‎Day31-Day35/car/search/tests.py

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from django.test import TestCase
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# Create your tests here.

‎Day31-Day35/car/search/views.py

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from json import JSONEncoder
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from django import forms
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from django.http import JsonResponse
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from django.shortcuts import render
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from search.models import CarRecord
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# 序列化/串行化/腌咸菜 - 把对象按照某种方式处理成字节或者字符的序列
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# 反序列化/反串行化 - 把字符或者字节的序列重新还原成对象
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# Python实现序列化和反序列化的工具模块 - json / pickle / shelve
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# return HttpResponse(json.dumps(obj), content_type='application/json')
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# return JsonResponse(obj, encoder=, safe=False)
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# from django.core.serializers import serialize
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# return HttpResponse(serialize('json', obj), content_type='application/json; charset=utf-8')
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class CarRecordEncoder(JSONEncoder):
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def default(self, o):
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del o.__dict__['_state']
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o.__dict__['date'] = o.happen_date
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return o.__dict__
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def ajax_search(request):
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if request.method == 'GET':
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return render(request, 'search2.html')
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else:
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carno = request.POST['carno']
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record_list = list(CarRecord.objects.filter(carno__icontains=carno))
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# 第一个参数是要转换成JSON格式(序列化)的对象
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# encoder参数要指定完成自定义对象序列化的编码器(JSONEncoder的子类型)
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# safe参数的值如果为True那么传入的第一个参数只能是字典
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# return HttpResponse(json.dumps(record_list), content_type='application/json; charset=utf-8')
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return JsonResponse(record_list, encoder=CarRecordEncoder,
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safe=False)
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def search(request):
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# 请求行中的请求命令
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# print(request.method)
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# 请求行中的路径
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# print(request.path)
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# 请求头(以HTTP_打头的键是HTTP请求的请求头)
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# print(request.META)
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# 查询参数: http://host/path/resource?a=b&c=d
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# print(request.GET)
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# 表单参数
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# print(request.POST)
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if request.method == 'GET':
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ctx = {'show_result': False}
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else:
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carno = request.POST['carno']
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ctx = {
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'show_result': True,
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'record_list': list(CarRecord.objects.filter(carno__contains=carno))}
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return render(request, 'search.html', ctx)
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class CarRecordForm(forms.Form):
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carno = forms.CharField(min_length=7, max_length=7, label='车牌号', error_messages={'carno': '请输入有效的车牌号'})
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reason = forms.CharField(max_length=50, label='违章原因')
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punish = forms.CharField(max_length=50, required=False, label='处罚方式')
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def add(request):
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errors = []
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if request.method == 'GET':
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f = CarRecordForm()
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else:
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f = CarRecordForm(request.POST)
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if f.is_valid():
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CarRecord(**f.cleaned_data).save()
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f = CarRecordForm()
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else:
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errors = f.errors.values()
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return render(request, 'add.html', {'f': f, 'errors': errors})

‎Day31-Day35/car/static/images/icon-no.svg

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‎Day31-Day35/car/static/images/icon-yes.svg

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