如何修复错误“str”对象没有属性“relative_url”

如何解决如何修复错误“str”对象没有属性“relative_url”

我正在尝试将一些 wagtail 上下文传递到 django 项目的搜索页面。帖子标题出现，但图片、描述和其他参数不会出现在搜索模板中。如何将这些上下文传递给搜索模板？

这是我得到的错误

AttributeError at /search/
'str' object has no attribute 'relative_url'
Request Method: GET
Request URL:    http://127.0.0.1:8000/search/?q=hel
Django Version: 3.1.3
Exception Type: AttributeError
Exception Value:    
'str' object has no attribute 'relative_url'
Exception Location: C:\Users\Bree\AppData\Roaming\Python\python37\site-packages\wagtail\contrib\routable_page\templatetags\wagtailroutablepage_tags.py,line 25,in routablepageurl
Python Executable:  C:\Program Files\python37\python.exe
Python Version: 3.7.3

这是search.view.py代码

from django.shortcuts import render

from wagtail.core.models import Page
from wagtail.search.models import Query

from django.core.paginator import EmptyPage,PageNotAnInteger,Paginator
from news.models import  NewsPage,Newscategory

def search(request):
    posts = NewsPage.objects.live().public()
    categories = Newscategory.objects.all()

    # Search
    search_query = request.GET.get('q',None)
    if search_query:
        search_results = NewsPage.objects.live().search(search_query)

        # Log the query so Wagtail can suggest promoted results
        Query.get(search_query).add_hit()
        reversenews = list(reversed(search_results))
        # Pagination
        paginator = Paginator(reversenews,16) #show 10 articles per page
        page = request.GET.get('page')
        try:
            search_results = paginator.page(page)
        except PageNotAnInteger:
            search_results = paginator.page(1)
        except EmptyPage:
            search_results = paginator.page(paginator.num_pages)
    else:
        search_results = NewsPage.objects.none()

    # Render template
    return render(request,'search/search.html',{
        'search_query': search_query,'search_results': search_results,'recent_posts' : posts,'categories' : categories
    })

这是搜索模板search.html

{% extends "news/news_index_page.html" %}

{% load static wagtailcore_tags %} 

{% load wagtailembeds_tags %}

{% load wagtailcore_tags %}

{% load static wagtailuserbar %}

{% load wagtailimages_tags %}
{%load static%}
{% load wagtailcore_tags %}

{% load wagtailroutablepage_tags %}

{% block content %}
<div class="container">
    <div class="row">
        <div class="col-md-8">

                <h3>Query Results FOR &nbsp;<b>"{{ search_query }}"</b></h3>
            <div class="post">
                
                    {% if search_results %}
                    <div class="row">
                    
                        {% for result in search_results %}
                        <div class="col-md-6 col-sm-6"> 
                                <div class="images">
                                    {% image result.blog_image max-770x480 as blog_img  %}
                                    <a class="images" href="{% pageurl result %}" title="images"><img  src="{{result.blog_image}}" alt="images"></a>
                                </div>
                                <div class="text">
                                    <h2><a href="{% pageurl result %}" title="title">{{result.title}}</a></h2>
                                    <div class="categories">
                                        {% for cat in result.categories.all%}
                                       <a href="{% routablepageurl news_page 'category_view' cat.slug %}" style="color:white">{{cat.name}}</a>
                                        {%endfor%}
                                        <p class="date"><i class="fa fa-clock-o"></i>{{result.date}}</p>
                                    </div>
                                    <p>{{result.description}}</p>
                                    <a href="{% pageurl result %}" title="read more">read more</a>
                                </div>
                           
                        {%endfor%} 
                    </div>
                    {% elif search_query %}
                    <p> No results found</p>
                        <img src="{% static '/images/not_found %}" alt="image">
                    {% endif %}
                </div>
                               
                <!-- Pagination -->
                    {% if search_results.paginator.num_pages > 1 %}
                    <div class="Box center float-left space-30">
                        <nav class="pagination">
                            {% if search_results.has_prevIoUs %}
                            <a class="control prev" href="?page={{ search_results.prevIoUs_page_number }}" title="pre"><i class="fa fa-long-arrow-left"></i>PrevIoUs</a>
                            {% endif %}
                            <ul>
                                {% for page_num in search_results.paginator.page_range %}
                                <li class="{% if page_num == search_results.number %} active{% endif %}"><a href="?page={{ page_num }}" title="1">{{ page_num }}</a></li>
                                {% endfor %}
                            </ul>
                            {% if search_results.has_next %}
                            <a class="control next" href="?page={{ search_results.next_page_number }}" title="next">Next<i class="fa fa-long-arrow-right"></i></a>
                            {% endif %}
                        </nav>
                        <!-- End pagination -->
                    </div>
                    {% endif %}
</div>
</div>

这是models.py

from django.db import models
from django.shortcuts import render
from wagtail.admin.edit_handlers import FieldPanel,StreamFieldPanel,MultiFieldPanel,InlinePanel
from wagtail.snippets.edit_handlers import SnippetChooserPanel
from wagtail.core.fields import StreamField
from wagtail.core.models import Page,Orderable
from wagtail.images.edit_handlers import ImageChooserPanel
from wagtail.snippets.models import register_snippet
from modelcluster.fields import ParentalKey,ParentalManyToManyField
from wagtail.contrib.routable_page.models import RoutablePageMixin,route
from modelcluster.contrib.taggit import ClusterTaggableManager
from taggit.models import TaggedItemBase
from django.core.paginator import EmptyPage,Paginator
from wagtailmenus.models import MenuPage

from django import forms
import datetime
from datetime import date

from streams import blocks

# Create your models here.



class NewsPageTag(TaggedItemBase):
    content_object = ParentalKey(
        'NewsPage',related_name='tagged_items',on_delete=models.CASCADE
    )


    
class NewsIndexPage(RoutablePageMixin,Page):
    
    custom_title = models.CharField(
        max_length=100,blank=True,null=True,help_text='Overwrites the default title',)

    content_panels = Page.content_panels + [
        FieldPanel("custom_title"),]
    

    def get_context(self,request,*args,**kwargs):
        """Adding custom stuff to our context."""
        context = super().get_context(request,**kwargs)
        posts = NewsPage.objects.live().public()
        context["recent_posts"] = posts
        context["tech_world"] = NewsPage.objects.live().filter(categories = 2)
        context["digital_creatives"] = NewsPage.objects.live().filter(categories = 10)
        context["exclusives"] = NewsPage.objects.live().filter(categories = 4)
        context["news"] = NewsPage.objects.live().filter(categories = 1)
        context["startups"] = NewsPage.objects.live().filter(categories = 3)
        context['news_page'] = self
        context['parent'] = self.get_parent().specific
        context['categories'] = Newscategory.objects.all()
        return context

   

    @route(r"^category/(?P<cat_slug>[-\w]*)/$",name="category_view")
    def category_view(self,cat_slug):

        context = self.get_context(request)

        try:
            category = Newscategory.objects.all().get(slug=cat_slug)
        except Exception:
            category= None
        if category is None:

            pass
        catPosts = NewsPage.objects.all().filter(categories__in=[category])
        reversenews = list(reversed(catPosts))
        
        paginator = Paginator(reversenews,6)
        page = request.GET.get("page")
        try:
            # If the page exists and the ?page=x is an int
            posts = paginator.page(page)
        except PageNotAnInteger:
            # If the ?page=x is not an int; show the first page
            posts = paginator.page(1)
        except EmptyPage:
            posts = paginator.page(paginator.num_pages)


        context["posts"]= posts
        context["category"] = Newscategory.objects.all().get(slug=cat_slug)

        return render(request,"news/cat_posts.html",context)

class NewsPage(Page):
    """Blog detail page."""
   
   
    blog_image = models.ForeignKey(
        "wagtailimages.Image",blank=False,related_name="+",on_delete=models.SET_NULL,)
    image_description = models.TextField(max_length=500,default=" ")


    categories = ParentalManyToManyField("news.Newscategory",blank = True)
    date = models.DateTimeField(verbose_name="Post date",default=datetime.datetime.today)
    tags = ClusterTaggableManager(through=NewsPageTag,blank=True)


    content = StreamField(
        [
            
            ("full_richtext",blocks.RichtextBlock())
           
        ],blank=False
    )
    description = StreamField(
        [
            
            ("full_richtext",blank=False
    )

    content_panels = Page.content_panels + [
        MultiFieldPanel([
            InlinePanel("news_authors",label="Author",min_num=1,max_num=4)
        ],heading="Author(s)"),MultiFieldPanel([
            FieldPanel("categories",widget = forms.CheckBoxSelectMultiple),FieldPanel('tags'),FieldPanel('date'),]),ImageChooserPanel("blog_image"),FieldPanel('image_description'),StreamFieldPanel("content"),StreamFieldPanel("description"),]

    @property
    def news_page(self):
        return self.get_parent().specific

    def get_context(self,**kwargs):
        context = super(NewsPage,self).get_context(request,**kwargs)
        posts = NewsPage.objects.live().public()
        context['categories'] = Newscategory.objects.all()
        context['news_page'] = self.news_page
        context['post'] = self
        context["recent_posts"]= NewsPage.objects.live().public()
        return context 

class NewsAuthor(models.Model):
     name = models.CharField(max_length=100)
     description = models.TextField(max_length=500,null=True)
     email = models.URLField(blank=True,null=True)
     image = models.ForeignKey(
         "wagtailimages.Image",null = True,blank = False,related_name="+"
     )
     

     panels = [
         MultiFieldPanel([
             FieldPanel("name"),FieldPanel("description"),ImageChooserPanel("image")
         ],heading="Name & Image"),MultiFieldPanel([
             FieldPanel("email")
         ],heading="Links")
     ]

     def __str__(self):
        return self.name
         
     

register_snippet(NewsAuthor)

class Newscategory(models.Model):

    name= models.CharField(max_length=255)
    slug = models.SlugField(
        verbose_name="slug",allow_unicode= True,unique=True,max_length=255,help_text="A slug to identify posts by this category"
    )

    panels=[
        FieldPanel("name"),FieldPanel("slug")
    ]

    class Meta:
        verbose_name = 'News Category'
        verbose_name_plural = 'News Categories'
        ordering = ['name']
    def __str__(self):
        return self.name
    

register_snippet(Newscategory)

这是urls.py

from django.conf import settings
from django.conf.urls import include,url
from django.contrib import admin

from wagtail.admin import urls as wagtailadmin_urls
from wagtail.core import urls as wagtail_urls
from wagtail.documents import urls as wagtaildocs_urls

from search import views as search_views

urlpatterns = [
    url(r'^django-admin/',admin.site.urls),url(r'^admin/',include(wagtailadmin_urls)),url(r'^documents/',include(wagtaildocs_urls)),url(r'^search/$',search_views.search,name='search'),]

我做错了什么？

解决方法

您模板中的 news_page 变量似乎是一个字符串，而不是页面对象，因为这是您共享的代码示例中唯一使用 {% routablepageurl %} 标记的地方。 但是，您没有显示 news_page 的定义位置，所以我可能会弄错。

我现在查看了您的模型文件，以及您定义 news_page 的位置。您已经在 NewsIndexPage 的上下文中定义了 news_page。这将在使用 Wagtail 的内部视图显示 NewsIndexPage 时使用，但在呈现搜索视图时不使用。

这是您在 search/views.py 中设置的响应上下文：

    # Render template
    return render(request,'search/search.html',{
        'search_query': search_query,'search_results': search_results,'recent_posts' : posts,'categories' : categories
    })

您能否将 news_page 添加到上下文中？