CODEWITHSUNDEEP
djangodjango-querysetdjango-urls
shahin
shahin

Reputation: 159

How to query by string

In Product model and i want to query by food title. and return me NoReverseMatch error

html url:

<a href="{% url 'product' food_name=catalog.food_name|urlencode %}">some text</a>

views.py:

def product(request, food_name):
    product = Catalog.objects.get(food_name=food_name)
    return render(request, 'food/product.html', {'product':product})

url.py

url(r'^product/(?P<food_name>\w+)/', food_views.product, name='product'),

Trace

NoReverseMatch: Reverse for 'product' with arguments '()' and keyword arguments '{u'food_name': u'%D9%86%D8%A7%D9%86%20%D8%A8%D9%88%D8%B1%DA%A9'}' not found. 1 pattern(s) tried: [u'product/(?P<food_name>\\w+)/']

Upvotes: 2

Views: 64

Answers (2)

Sayse
Sayse

Reputation: 43320

Remove the urlencode, you don't need it

<a href="{% url 'product' food_name=catalog.food_name %}">some text</a>

urlencode is used when you need to encode a string in a way that will allow it to be used inside a url (such as when you're adding get parameters). Above, you are just passing a string parameter to a function that is constructing a url.

You seem to be trying to encode arabic characters into your url which are not matched by \w so you need to update your url to support these

^product/(?P<food_name>[\w\u0600-\u06FF]+)/

Will handle most of these (See this regexr example), but I'm not familiar with arabic enough to know what the unicode for ک is

Upvotes: 3

Ihor Pomaranskyy
Ihor Pomaranskyy

Reputation: 5641

I believe it's because \w+ doesn't match URL-encoded string. Try to change it temporarily to .* (just to check if there are not any other issues). If it will work — change \w+ to better template matching URL-encoded strings.

Upvotes: 1

Related Questions