python - Django - Exception Type: NoReverseMatch -


hi guys im learning django im getting error , dont know how fix it, can me please? python 3.x / django 1.9

im getting error:

noreversematch @ / reverse 'categoria' arguments '(1,)' , keyword arguments '{}' not found. 0 pattern(s) tried: [] request method: request url:    http://127.0.0.1:8000/ django version: 1.9.1 exception type: noreversematch exception value:     reverse 'categoria' arguments '(1,)' , keyword arguments '{}' not found. 0 pattern(s) tried: [] exception location: c:\users\yiyeh\appdata\local\programs\python\python35-32\lib\site-packages\django\core\urlresolvers.py in _reverse_with_prefix, line 508 python executable:  c:\users\yiyeh\appdata\local\programs\python\python35-32\python.exe python version: 3.5.1 python path:     ['c:\\users\\yiyeh\\documents\\ejercicios\\python\\puls\\puls',  'c:\\users\\yiyeh\\appdata\\local\\programs\\python\\python35-32\\python35.zip',  'c:\\users\\yiyeh\\appdata\\local\\programs\\python\\python35-32\\dlls',  'c:\\users\\yiyeh\\appdata\\local\\programs\\python\\python35-32\\lib',  'c:\\users\\yiyeh\\appdata\\local\\programs\\python\\python35-32',  'c:\\users\\yiyeh\\appdata\\local\\programs\\python\\python35-32\\lib\\site-packages'] server time:    wed, 27 jan 2016 17:52:56 -0300  django.shortcuts import render_to_response django.http import httpresponse django.template.loader import get_template django.template import context datetime import datetime app.models import *

this view.py

def home(request):     categorias = categoria.objects.all()     enlaces = enlace.objects.all()     template = "index.html"     #diccionario = {"categorias": categorias,"enlaces":enlaces}     return render_to_response(template,locals())

urls.py

from django.conf.urls import url django.contrib import admin  urlpatterns = [     url(r'^admin/', admin.site.urls),     url(r'^$', 'app.views.home', name='home'), ]

and index.html ( error on line 30 )

<!doctype html> <html lang="es"> <head>     <meta charset="utf-8" />      <meta name="viewport"            content="width=device-width, initial-scale=1, maximum-scale=1" />      <title>puls3: comunidad online de gente pro y (no sé que más escribir)</title>     <link rel="stylesheet" href="normalize.css" />     <link href='http://fonts.googleapis.com/css?family=pt+sans:400,700,400italic,700italic' rel='stylesheet' type='text/css' />     <link rel="stylesheet" href="/static/estilos.css" />     <link rel="stylesheet" href="/static/responsive.css" /> </head> <body>     <!-- comentario de lo que sea -->     <header>         <figure id="logo">             <img src="logo.png" />         </figure>         <h1 id="titulo_header">puls3: comunidad de gente cool, atractiva y millonaria</h1>         <figure id="avatar">             <img src="avatar.jpg" />             <figcaption></figcaption>         </figure>     </header>     <nav>         <ul>             <li id="flechita_nav"><a href="/"></a></li>             {% cat in categorias %}                 <li><a href="{% url "categoria" cat.pk %}">{{cat}}</a></li>             {% endfor %}             <li id="publicar_nav"><a href="{% url "add" %}">publicar</a></li>         </ul>     </nav>     <aside id="bienvenida">         {% if not request.user.is_authenticated %}         <h2>hola, registrate!</h2>         <p>es importante registrarte porque lol!</p>         <a id="registro" href="#">registrate acá</a>         <p id="mensaje_registro">en serio, registrate por favor</p>         {% endif %}     </aside>     <section id="contenido">         {% if enlaces %}          {% enlace in enlaces %}         <article class="item">             <figure class="imagen_item">                 <img src="imagen.jpg" />             </figure>             <h2 class="titulo_item">                 <a href="{{enlace.enlace}}">{{enlace.titulo}}</a>             </h2>             <p class="autor_item">                 por <a href="#">{{enlace.usuario}}</a>             </p>             <p class="datos_item">                 <a class="tag_item" href="#">{{enlace.categoria}}</a>                 <span class="fecha_item">hace <strong>{{enlace.timestamp|timesince}}</strong> min</span>                 <a class="guardar_item" href="#"></a>             </p>             <p class="votacion">                 <a class="up" href="{% url "plus" enlace.pk %}"></a>                 {{enlace.votos}}                 <a class="down" href="{% url "minus" enlace.pk %}"></a>             </p>         </article>         {% endfor %}         {% else %}             no hay enlaces guardados         {% endif %}     </section>     <footer>         <p><strong>powered platzi!</strong></p>         <p>mejorando.la 2013 ®</p>     </footer> </body> </html>

your problem template trying create hyperlinks don't have corresponding entries in urls.py file. whenever creating link (e.g., href="{% url 'categoria' cat.pk %}" django urls.py url name categoria takes 1 parameter - in case primary key. working, have have entry looking this:

urlpatterns = [     # other url entries...     url(r'^categoria/([0-9]+)/$', views.categoria_view, name='categoria'), ]

the name argument used when reversing url. more in documentation here

note have create entries names using in {% url %} tags (e.g., categoria, plus, minus, add).


Comments

Post a Comment

Popular posts from this blog

authentication - Mongodb revoke acccess to connect test database -

i have ec2 instance mongodb 3.2.0 installed. have user admin access. can connect user , perform operation remotely. 1 can connect database test remote if knows ip mongo 11.11.11.11. although not able make operations, want restrict access user credentials can connect server. first need create users , grant roles users, example: use admin db.createuser( { user: "myuseradmin", pwd: "abc123", roles: [ { role: "useradminanydatabase", db: "admin" } ] } ) then need start server --auth parameter mongod --auth more information here
Read more

r - Update two sets of radiobuttons reactively - shiny -

i have read ( how make choices in radiobuttons reactive in shiny? ) shows me how update radiobutton s in reactive way. however, when try , update 2 sets of buttons same data, 1 set renders. example: server: # create example data wafer <- rep(c(1:3), each=3) length <- c(1,1,2,1,1,1,3,5,1) width <- c(3,1,6,1,1,1,1,1,6) dd <- data.frame(wafer, length, width) shinyserver(function(input, output, session){ # create reactive dataframe store data values <- reactivevalues() values$df <- data.frame() # lengths , widths of wafer user input <- eventreactive(input$do, { subset(dd, wafer %in% input$wafer, select = length:width) }) # update reactive data frame lengths , widths have been selected user input observe({ if(!is.null(a())) { values$df <- rbind(isolate(values$df), a()) } }) output$wl <- renderdatatable({ a() }) # update radio buttons unique length , widths stored in values$df # ever "observe" put first in co...
Read more

ios - Realm over CoreData should I use NSFetchedResultController or a Dictionary? -

i'm working on app using core data , nsfetchedresultcontroller many reasons switch use realm. saw there "realm version" of nsfetchedresultcontroller on github wouldn't compatible current code using core data. the view controller displaying list of people same school, address book. list sublist of people studied in same city. so thinking make 1 unique request database retrieve list of people , filter locally list within 1 dictionary per school [string: anyobject] string section name within tableview , anyobject array of people. first solution, make nsfetchedresultcontroller each school predicate filtering location. delete actions etc.. handled delegates -> not compatible realm create dictionaries , update them each actions... -> works realm it's annoying code. any better solution? edit: i need clarify request: i'd write class inherit uitableviewcontroller. this class has list of people sorted in alphabetical order the tableview has ...
Read more