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Python-100-Days
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'更新了Django示例代码'

pull/14/merge
jackfrued 2018-07-04 16:47:48 +08:00
parent b265f0c833
commit 4a458a594e
16 changed files with 239 additions and 99 deletions
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0
Day41-55/code/hellodjango/db.sqlite3
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11
Day41-55/code/hellodjango/demo/admin.py
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@ -1,12 +1,19 @@
from django.contrib import admin
from demo.models import Teacher
from demo.models import Teacher, Subject
class SubjectAdmin(admin.ModelAdmin):
list_display = ('no', 'name', 'intro')
ordering = ('no', )
class TeacherAdmin(admin.ModelAdmin):
list_display = ('no', 'name', 'job', 'intro', 'motto')
list_display = ('no', 'name', 'intro', 'motto', 'subject', 'manager')
search_fields = ('name', 'intro')
ordering = ('no', )
admin.site.register(Subject, SubjectAdmin)
admin.site.register(Teacher, TeacherAdmin)

27
Day41-55/code/hellodjango/demo/migrations/0001_initial.py
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@ -1,6 +1,7 @@
# Generated by Django 2.0.6 on 2018-07-03 02:20
# Generated by Django 2.0.6 on 2018-07-04 02:30
from django.db import migrations, models
import django.db.models.deletion
class Migration(migrations.Migration):
@ -11,17 +12,31 @@ class Migration(migrations.Migration):
]
operations = [
migrations.CreateModel(
name='Subject',
fields=[
('no', models.AutoField(db_column='sno', primary_key=True, serialize=False, verbose_name='编号')),
('name', models.CharField(db_column='sname', max_length=50, verbose_name='学科名称')),
('intro', models.CharField(db_column='sintro', max_length=511, verbose_name='学科介绍')),
],
options={
'db_table': 'tb_subject',
},
),
migrations.CreateModel(
name='Teacher',
fields=[
('no', models.AutoField(db_column='tno', primary_key=True, serialize=False)),
('name', models.CharField(db_column='tname', max_length=20)),
('job', models.CharField(db_column='tjob', max_length=10)),
('intro', models.CharField(db_column='tintro', max_length=1023)),
('motto', models.CharField(db_column='tmotto', max_length=255)),
('no', models.AutoField(db_column='tno', primary_key=True, serialize=False, verbose_name='编号')),
('name', models.CharField(db_column='tname', max_length=20, verbose_name='姓名')),
('intro', models.CharField(db_column='tintro', max_length=1023, verbose_name='简介')),
('motto', models.CharField(db_column='tmotto', max_length=255, verbose_name='教学理念')),
('photo', models.CharField(blank=True, db_column='tphoto', max_length=511, null=True)),
('manager', models.BooleanField(db_column='tmanager', default=False, verbose_name='是否主管')),
('subject', models.ForeignKey(db_column='sno', on_delete=django.db.models.deletion.PROTECT, to='demo.Subject', verbose_name='所属学科')),
],
options={
'db_table': 'tb_teacher',
'ordering': ('name',),
},
),
]

36
Day41-55/code/hellodjango/demo/migrations/0002_auto_20180704_1117.py 100644
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@ -0,0 +1,36 @@
# Generated by Django 2.0.6 on 2018-07-04 03:17
from django.db import migrations, models
class Migration(migrations.Migration):
dependencies = [
('demo', '0001_initial'),
]
operations = [
migrations.AlterModelOptions(
name='subject',
options={'verbose_name': '学科', 'verbose_name_plural': '学科'},
),
migrations.AlterModelOptions(
name='teacher',
options={'ordering': ('name',), 'verbose_name': '讲师', 'verbose_name_plural': '讲师'},
),
migrations.AddField(
model_name='teacher',
name='bad_count',
field=models.IntegerField(db_column='sbcount', default=0, verbose_name='差评数'),
),
migrations.AddField(
model_name='teacher',
name='good_count',
field=models.IntegerField(db_column='sgcount', default=0, verbose_name='好评数'),
),
migrations.AlterField(
model_name='teacher',
name='photo',
field=models.CharField(blank=True, db_column='tphoto', max_length=511, null=True, verbose_name='照片'),
),
]

18
Day41-55/code/hellodjango/demo/migrations/0002_teacher_photo.py
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@ -1,18 +0,0 @@
# Generated by Django 2.0.6 on 2018-07-03 03:42
from django.db import migrations, models
class Migration(migrations.Migration):
dependencies = [
('demo', '0001_initial'),
]
operations = [
migrations.AddField(
model_name='teacher',
name='photo',
field=models.CharField(db_column='tphoto', max_length=511, null=True),
),
]

17
Day41-55/code/hellodjango/demo/migrations/0003_auto_20180703_1355.py
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@ -1,17 +0,0 @@
# Generated by Django 2.0.6 on 2018-07-03 05:55
from django.db import migrations
class Migration(migrations.Migration):
dependencies = [
('demo', '0002_teacher_photo'),
]
operations = [
migrations.AlterModelTable(
name='teacher',
table=None,
),
]

23
Day41-55/code/hellodjango/demo/migrations/0003_auto_20180704_1118.py 100644
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@ -0,0 +1,23 @@
# Generated by Django 2.0.6 on 2018-07-04 03:18
from django.db import migrations, models
class Migration(migrations.Migration):
dependencies = [
('demo', '0002_auto_20180704_1117'),
]
operations = [
migrations.AlterField(
model_name='teacher',
name='bad_count',
field=models.IntegerField(db_column='tbcount', default=0, verbose_name='差评数'),
),
migrations.AlterField(
model_name='teacher',
name='good_count',
field=models.IntegerField(db_column='tgcount', default=0, verbose_name='好评数'),
),
]

21
Day41-55/code/hellodjango/demo/migrations/0004_auto_20180703_1412.py
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@ -1,21 +0,0 @@
# Generated by Django 2.0.6 on 2018-07-03 06:12
from django.db import migrations
class Migration(migrations.Migration):
dependencies = [
('demo', '0003_auto_20180703_1355'),
]
operations = [
migrations.AlterModelOptions(
name='teacher',
options={'ordering': ('-no',)},
),
migrations.AlterModelTable(
name='teacher',
table='tb_teacher',
),
]

27
Day41-55/code/hellodjango/demo/models.py
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@ -1,17 +1,34 @@
from django.db import models
from django.db.models import PROTECT
# Django框架中包含了ORM(对象关系映射)框架
# ORM可以帮助我们完成对象模型到关系模型的双向转换
class Subject(models.Model):
no = models.AutoField(primary_key=True, db_column='sno', verbose_name='编号')
name = models.CharField(max_length=50, db_column='sname', verbose_name='学科名称')
intro = models.CharField(max_length=511, db_column='sintro', verbose_name='学科介绍')
def __str__(self):
return self.name
class Meta(object):
db_table = 'tb_subject'
verbose_name = '学科'
verbose_name_plural = '学科'
class Teacher(models.Model):
no = models.AutoField(primary_key=True, db_column='tno', verbose_name='编号')
name = models.CharField(max_length=20, db_column='tname', verbose_name='姓名')
job = models.CharField(max_length=10, db_column='tjob', verbose_name='职位')
intro = models.CharField(max_length=1023, db_column='tintro', verbose_name='简介')
motto = models.CharField(max_length=255, db_column='tmotto', verbose_name='教学理念')
photo = models.CharField(max_length=511, db_column='tphoto', null=True)
photo = models.CharField(max_length=511, db_column='tphoto', verbose_name='照片', null=True, blank=True)
subject = models.ForeignKey(Subject, db_column='sno', on_delete=PROTECT, related_name='+', verbose_name='所属学科')
manager = models.BooleanField(default=False, db_column='tmanager', verbose_name='是否主管')
good_count = models.IntegerField(default=0, db_column='tgcount', verbose_name='好评数')
bad_count = models.IntegerField(default=0, db_column='tbcount', verbose_name='差评数')
class Meta(object):
db_table = 'tb_teacher'
ordering = ('-no', )
verbose_name = '讲师'
verbose_name_plural = '讲师'
ordering = ('name', )

36
Day41-55/code/hellodjango/demo/views.py
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@ -1,9 +1,35 @@
import json
from django.http import HttpResponse
from django.shortcuts import render
from demo.models import Teacher
from demo.models import Subject, Teacher
def home(request):
# 通过ORM框架实现持久化操作CRUD
ctx = {'teachers_list': list(Teacher.objects.all())}
return render(request, 'demo/home.html', ctx)
def index(request):
ctx = {'subjects_list': Subject.objects.all()}
return render(request, 'demo/index.html', ctx)
def show_teachers(request, no):
teachers = Teacher.objects.filter(subject__no=no)
ctx = {'teachers_list': teachers}
return render(request, 'demo/teacher.html', ctx)
def make_good_comment(request, no):
teacher = Teacher.objects.get(pk=no)
teacher.good_count += 1
teacher.save()
ctx = {'code': 200, 'result': f'好评({teacher.good_count})'}
return HttpResponse(json.dumps(ctx),
content_type='application/json; charset=utf-8')
def make_bad_comment(request, no):
teacher = Teacher.objects.get(pk=no)
teacher.bad_count += 1
teacher.save()
ctx = {'code': 200, 'result': f'差评({teacher.bad_count})'}
return HttpResponse(json.dumps(ctx),
content_type='application/json; charset=utf-8')

2
Day41-55/code/hellodjango/hellodjango/settings.py
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@ -78,7 +78,7 @@ DATABASES = {
'default': {
'ENGINE': 'django.db.backends.mysql',
'NAME': 'demo',
'HOST': '120.77.222.217',
'HOST': 'localhost',
'PORT': 3306,
'USER': 'root',
'PASSWORD': '123456',

5
Day41-55/code/hellodjango/hellodjango/urls.py
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@ -19,6 +19,9 @@ from django.urls import path
from demo import views
urlpatterns = [
path('', views.home),
path('', views.index, name='index'),
path('subjects/<int:no>', views.show_teachers),
path('good/<int:no>', views.make_good_comment),
path('bad/<int:no>', views.make_bad_comment),
path('admin/', admin.site.urls),
]

2
Day41-55/code/hellodjango/static/js/jquery.min.js vendored 100644
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23
Day41-55/code/hellodjango/templates/demo/home.html
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@ -1,23 +0,0 @@
<!DOCTYPE html>
{% load staticfiles %}
<html lang="en">
<head>
<meta charset="UTF-8">
<title>讲师信息</title>
</head>
<body>
{% for x in teachers_list %}
<h1>{{ x.name }}老师 - {{ x.job }}</h1>
<p><strong>讲师简介</strong></p>
<p>{{ x.intro }}</p>
<p><strong>教学理念</strong></p>
<p>{{ x.motto }}</p>
<p>
{% if x.photo %}
<img src="{% static x.photo %}">
{% endif %}
</p>
<hr>
{% endfor %}
</body>
</html>

18
Day41-55/code/hellodjango/templates/demo/index.html 100644
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@ -0,0 +1,18 @@
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>学科信息</title>
</head>
<body>
<h1>学科信息</h1>
<hr>
<ul>
{% for subject in subjects_list %}
<li>
<a href="/subjects/{{ subject.no }}">{{ subject.name }}</a>
</li>
{% endfor %}
</ul>
</body>
</html>

72
Day41-55/code/hellodjango/templates/demo/teacher.html 100644
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@ -0,0 +1,72 @@
<!DOCTYPE html>
{% load staticfiles %}
<html lang="en">
<head>
<meta charset="UTF-8">
<title>讲师信息</title>
<style>
.container {
width: 960px;
margin: 0 auto;
}
.basic {
width: 60%;
float: left;
}
.potrait {
width: 40%;
float: left;
}
hr {
clear: both;
}
.button {
display: inline-block;
width: 80px;
height: 30px;
background-color: red;
color: white;
font: 16px/30px Arial;
text-decoration: none;
text-align: center;
}
</style>
</head>
<body>
<!-- 页面的显示逻辑 -->
{% for x in teachers_list %}
<div class="container">
<div class="basic">
<h1>{{ x.name }}老师</h1>
<p><strong>讲师简介</strong></p>
<p>{{ x.intro }}</p>
<p><strong>教学理念</strong></p>
<p>{{ x.motto }}</p>
<a href="/good/{{ x.no }}" class="button">好评({{ x.good_count }})</a>
<a href="/bad/{{ x.no }}" class="button">差评({{ x.bad_count }})</a>
</div>
<div class="potrait">
{% if x.photo %}
<img src="{% static x.photo %}">
{% endif %}
</div>
<hr>
</div>
{% endfor %}
<script src="{% static 'js/jquery.min.js' %}"></script>
<script>
$(function() {
$('.basic .button').on('click', function(evt) {
evt.preventDefault();
var a = $(evt.target)
var url = a.attr('href')
$.getJSON(url, function(json) {
if (json.code == 200) {
a.text(json.result);
}
});
});
});
</script>
</body>
</html>