如何創建並鏈接到我的模板中的類別部分？

Question

我是新來的Django，我已經嘗試了一些建議，但似乎無法得到它的工作。我正嘗試使用類別部分創建博客文章模型，並鏈接到我的模板中的類別。我的代碼如下。

from django.db import models 
from django.utils import timezone 
from django.contrib.auth.models import User 
from django.core.urlresolvers import reverse 
from taggit.managers import TaggableManager 


# Create your models here. 

class PublishedManager(models.Manager): 
    def get_queryset(self): 
     return super(PublishedManager, self).get_queryset().filter(status='published') 


class MoneyManager(models.Manager): 
    def get_queryset(self): 
     return super(MoneyManager, self).get_queryset().filter(category='money') 


class LoveManager(models.Manager): 
    def get_queryset(self): 
     return super(LoveManager, self).get_queryset().filter(category='love') 


class WeightlossManager(models.Manager): 
    def get_queryset(self): 
     return super(WeightlossManager, self).get_queryset().filter(category='weightloss') 


def get_image_filename(instance, filename): 
    title = instance.post.title 
    slug = slugify(title) 
    return "post_images/%s-%s" % (slug, filename) 


class Post(models.Model): 
    STATUS_CHOICES = (
     ('draft', 'Draft'), 
     ('published', 'Published'), 
    ) 
    CATEGORY_CHOICES = (
     ('money', 'Money'), 
     ('love', 'Love'), 
     ('weightloss', 'Weightloss') 
    ) 
    title = models.CharField(max_length=250) 
    slug = models.SlugField(max_length=250, 
          unique_for_date='publish') 
    author = models.ForeignKey(User, related_name='blog_posts') 
    image = models.ImageField(upload_to='get_image_filename', verbose_name='Image', blank=True) 
    body = models.TextField() 
    image2 = models.ImageField(upload_to='get_image_filename', verbose_name='Image', blank=True) 
    body2 = models.TextField(blank=True) 
    image3 = models.ImageField(upload_to='get_image_filename', verbose_name='Image', blank=True) 
    body3 = models.TextField(blank=True) 
    publish = models.DateTimeField(default=timezone.now) 
    created = models.DateTimeField(auto_now_add=True) 
    updated = models.DateTimeField(auto_now=True) 
    status = models.CharField(max_length=10, choices=STATUS_CHOICES, default='draft') 
    objects = models.Manager() 
    published = PublishedManager() 
    category = models.CharField(max_length=10, choices=CATEGORY_CHOICES) 
    money = MoneyManager() 
    love = LoveManager() 
    weightloss = WeightlossManager() 
    tags = TaggableManager() 

    class Meta: 
     ordering = ('-publish',) 

    def __str__(self): 
     return self.title 

    def get_absolute_url(self): 
     return reverse('blog:post_detail', 
         args=[self.publish.year, 
          self.publish.strftime('%m'), 
          self.publish.strftime('%d'), 
          self.slug]) 


class Comment(models.Model): 
    post = models.ForeignKey(Post, related_name='comments') 
    name = models.CharField(max_length=80) 
    email = models.EmailField() 
    body = models.TextField() 
    created = models.DateTimeField(auto_now_add=True) 
    updated = models.DateTimeField(auto_now=True) 
    active = models.BooleanField(default=True) 

    class Meta: 
     ordering = ('created',) 

    def __str__(self): 
     return 'Comment by {} on {}'.format(self.name, self.post) 
     4e2 
     aaefb22cf2adc42680d 
     ' -H ' 
     Content - Type: multipart/form - data 
     ' -POST http://127.0.0.1:8000/api/scan_binary/ -F binary_file=@/Users/a.b.gopalakrishna/Desktop/tele.apk -F uuid=a996a142e1ef4a6e9e29dd7f6baf120bfsfds 

我想在我的模板的部分叫，將顯示3類（金錢，愛情和失重）類別。

我該如何解決這個問題，以及如何編碼模板來顯示它？謝謝！

Answer 1

您可以使用_meta.get_field.("category").choices或get_category_display這樣做，否則，你可以在dict所以喜歡直接轉換領域的選擇CATEGORY_CHOICES：

def convert_dict_choice(self): 
      category_dict = dict(self.CATEGORY_CHOICES) 
      return category_dict 

因此，你可以在你的view稱之爲Ÿ把它作爲背景在您response您的模板，所以像：

def select_options(request): 
    category_select = Post().convert_dict_choice() 
    return render(
     request, "template/name_template.html",   
     {"data_select":category_select} 
    ) 

然後，模板，你可以這樣做：

{% extends "base.html" %} 
{% block content %} 
    <div class="category"> 
     <h1>Seccion category</h1> 
     <select name="services" id="services"> 
      {% for category_selectvice in data_select %} 
        <option>{{category_selectvice}}</option>  
      {% endfor %} 
     </select> 
    </div> 
{% endblock content %} 

如果您想了解更多參考資料，請訪問django Doc django的文檔。