django for .html模板页面中的循环（newbie） [英] django for loop in a .html template page (newbie)

问题描述

我有一个在我学习新语言/框架时真正讨厌的事情，当我遇到一个似乎很容易解决的问题django for一个html页面中的循环，但由于某种原因它不工作。我错过了一些东西，无法自己修复这个问题，所以我转到StackOverflow来帮助我。

这是我运行我的查询 models.py ：

  class RIAchievement（models.Model）：
 riAchievementID = models.AutoField primary_key = True，db_column =RIAchievementID）
 userLanguageVersionID = models.ForeignKey（UserLanguageVersion，db_column =UserLanguageVersionID）
 typeAchievementID = models.ForeignKey（TypeAchievement，db_column =TypeAchievementID）
 riAchievementTypeUserDescription = models.CharField（max_length = 255，blank = True，null = True，db_column =RIAchievementTypeUserDescription）
 riAchievementDescription = models.TextField（max_length = 2000，db_column =RIAchievementDescription）
 auth_user_id = models.ForeignKey（auth_user，db_column =auth_user_id）
 class Meta：
 db_table =RIAchievement
  

这是我的 models.py 文件我在哪里位于我的项目中：GlobalXpy\app_data\models.py

这是我的 views.py 文件中的代码：来自GlobalXpy.app_data.models的p>

 从django.shortcuts导入render_to_response 
 RIAchievement 
 
 def index （请求）：
 ri_achievement = RIAchievement.objects.all（）
 get_template = loader.get_template（'ri_achievement.html'）
返回render_to_response（get_template）
  

这是我的模板文件（ ri_achievement.html ）内的for循环：

  {％for e in ri_achievement％} 
< td>预览编辑重复删除< / td> 
< td> FlagPath< / td> 
< td> AchievementType / RIAchievementTypeUserDescription< / td> 
< td> {{e.riAchievementDescription}}< / td> 
 {％endfor％} 
  

任何帮助将不胜感激。

解决方案

  from django.shortcuts import render 
 from GlobalXpy.app_data.models import RIAchievement 
 
 def index（request）：
 ri_achievement = RIAchievement.objects.all（）
 return render（request，'ri_achievement.html'，{'ri_achievement'：ri_achievement}）
  

在您的模板中：

  {％if ri_achievement％} 
有{{ri_achievement | length}}记录：
 {％for ri在ri_achievement％} 
< td>预览编辑重复删除< / td> 
< td> FlagPath< / td> 
< td> AchievementType / RIAchievementTypeUserDescription< / td> 
< td> {{e.riAchievementDescription}}< / td> 
 {％endfor％} 
 {％else％} 
系统中没有记录
 {％endif％} 
  / pre> 
The thing I really hate when learning a new language / framework is how ignorant I feel when I get stuck on a seemingly easy to solve issue.

I have a django for loop inside a html page but for some reason it is not working. I have missed something and cannot fix the issue on my own, so I turn to StackOverflow to help me.

This is my model I am running my query on models.py:
class RIAchievement(models.Model):
  riAchievementID = models.AutoField(primary_key=True, db_column="RIAchievementID")
  userLanguageVersionID = models.ForeignKey(UserLanguageVersion, db_column="UserLanguageVersionID")
  typeAchievementID = models.ForeignKey(TypeAchievement, db_column="TypeAchievementID")
  riAchievementTypeUserDescription = models.CharField(max_length=255, blank=True, null=True, db_column="RIAchievementTypeUserDescription")
  riAchievementDescription = models.TextField(max_length=2000, db_column="RIAchievementDescription")
  auth_user_id = models.ForeignKey(auth_user, db_column="auth_user_id")
  class Meta:
    db_table="RIAchievement"
This is where my models.py file is located in my project: GlobalXpy\app_data\models.py

This is the code within my views.py file:
from django.shortcuts import render_to_response
from GlobalXpy.app_data.models import RIAchievement

def index(request):
  ri_achievement = RIAchievement.objects.all()
  get_template = loader.get_template('ri_achievement.html')
  return render_to_response(get_template)
This is the for loop that is inside my template file (ri_achievement.html):
{% for e in ri_achievement %}
  <td> Preview  Edit  Duplicate  Delete </td>
  <td> FlagPath </td>
  <td> AchievementType / RIAchievementTypeUserDescription </td>
  <td> {{ e.riAchievementDescription }} </td>
{% endfor %}
Any assistance would be appreciated.
解决方案
from django.shortcuts import render
from GlobalXpy.app_data.models import RIAchievement

def index(request):
  ri_achievement = RIAchievement.objects.all()
  return render(request, 'ri_achievement.html',{'ri_achievement': ri_achievement})
In your template:
{% if ri_achievement %}
   There are {{ ri_achievement|length }} records:
   {% for e in ri_achievement %}
      <td> Preview  Edit  Duplicate  Delete </td>
      <td> FlagPath </td>
      <td> AchievementType / RIAchievementTypeUserDescription </td>
      <td> {{ e.riAchievementDescription }} </td>
   {% endfor %}
{% else %}
   There are no records in the system
{% endif %}


                        
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