01

Author: gpc-h

blog/__init__.py

@@ -0,0 +1,9 @@
+from django.contrib import admin
+from .models import Category,Post,Tag
+
+class PostAdmin(admin.ModelAdmin):
+    list_display = ['title','created_time','modified_time','category','author']
+
+admin.site.register(Category)
+admin.site.register(Post,PostAdmin)
+admin.site.register(Tag)

blog/admin.py

@@ -0,0 +1,5 @@
+from django.apps import AppConfig
+
+
+class BlogConfig(AppConfig):
+    name = 'blog'

blog/apps.py

@@ -0,0 +1,19 @@
+from django.contrib.syndication.views import Feed
+
+from .models import Post
+
+class AllPostRssFeed(Feed):
+    title = 'Django'
+    link = '/'
+    description = 'Django Blog'
+
+    def items(self):
+        return Post.objects.all()
+
+    def item_title(self, item):
+        return '[%s] %s' %(item.category,item.title)
+
+    def item_description(self, item):
+        return item.body
+
+

blog/feeds.py

@@ -0,0 +1,51 @@
+# -*- coding: utf-8 -*-
+# Generated by Django 1.10.6 on 2017-09-11 02:20
+from __future__ import unicode_literals
+
+from django.conf import settings
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    initial = True
+
+    dependencies = [
+        migrations.swappable_dependency(settings.AUTH_USER_MODEL),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='Category',
+            fields=[
+                ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('name', models.CharField(max_length=64)),
+            ],
+        ),
+        migrations.CreateModel(
+            name='Post',
+            fields=[
+                ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('title', models.CharField(max_length=64)),
+                ('body', models.TextField()),
+                ('created_time', models.DateTimeField()),
+                ('modified_time', models.DateTimeField()),
+                ('excerpt', models.CharField(blank=True, max_length=256)),
+                ('author', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to=settings.AUTH_USER_MODEL)),
+                ('category', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to='blog.Category')),
+            ],
+        ),
+        migrations.CreateModel(
+            name='Tag',
+            fields=[
+                ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('name', models.CharField(max_length=64)),
+            ],
+        ),
+        migrations.AddField(
+            model_name='post',
+            name='tags',
+            field=models.ManyToManyField(blank=True, to='blog.Tag'),
+        ),
+    ]

blog/migrations/0001_initial.py

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+# -*- coding: utf-8 -*-
+# Generated by Django 1.10.6 on 2017-09-12 07:51
+from __future__ import unicode_literals
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('blog', '0001_initial'),
+    ]
+
+    operations = [
+        migrations.AlterModelOptions(
+            name='post',
+            options={'ordering': ['-created_time', '-modified_time']},
+        ),
+        migrations.AddField(
+            model_name='post',
+            name='views',
+            field=models.PositiveIntegerField(default=0),
+        ),
+    ]

blog/migrations/0002_auto_20170912_1551.py

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+from django.db import models
+from django.urls import reverse
+# User是一个自带的模型类，里面是用户的字段
+from django.contrib.auth.models import User
+from markdown import Markdown
+from django.utils.html import strip_tags
+
+class Category(models.Model):
+    name = models.CharField(max_length=64)
+    # annotate产生的隐藏属性：num_posts
+
+    def __str__(self):
+        return self.name
+
+class Tag(models.Model):
+    name = models.CharField(max_length=64)
+    def __str__(self):
+        return self.name
+
+class Post(models.Model):
+    title = models.CharField(max_length=64)
+    body = models.TextField()
+    created_time = models.DateTimeField()
+    modified_time = models.DateTimeField()
+    # 摘要
+    excerpt = models.CharField(max_length=256,blank=True)
+
+    # 关系
+    category = models.ForeignKey(Category)
+    tags = models.ManyToManyField(Tag,blank=True)
+
+    author = models.ForeignKey(User)
+
+    # 文章阅读量
+    views = models.PositiveIntegerField(default=0)
+
+    def increase_views(self):
+        self.views+=1
+        self.save(update_fields=['views'])
+
+    # 看不到的属性：comment_set
+
+    class Meta:
+        ordering = ['-created_time','-modified_time']
+
+    def get_absolute_url(self):
+        #使用reverse函数，生成一个url，例如 post / 1
+        return reverse('blog:detail',kwargs={'pk':self.pk}) #
+
+    def save(self,*args,**kwargs):
+        if not self.excerpt:
+            md = Markdown(extensions=[
+                'markdown.extensions.extra',
+                'markdown.extensions.codehilite',
+            ])
+            self.excerpt = strip_tags(md.convert(self.body))[:32]
+        super().save(*args,**kwargs)
+
+    def __str__(self):
+        return self.title
+
+

blog/migrations/__init__.py

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+from haystack import indexes
+
+from .models import Post
+
+class PostIndex(indexes.SearchIndex,indexes.Indexable):
+    # 习惯写法，设置text字段，设置document=True,use_template=True
+    text = indexes.CharField(document=True,use_template=True)
+
+    def get_model(self):
+        return Post
+
+    def index_queryset(self, using=None):
+        return self.get_model().objects.all()