Searchbar in Django not working: like query is not executed - django

Question

I am developing an app in Django.
I have contents of a database displayed on my template glossario.html ad I want to implement a search bar to query the database and display only the query results.
So I have set up the toolbar in glossario.html
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/4.7.0/css/font-awesome.min.css">
<div class="topnav">
<a id="pulsante_ricerca_avanzata" href="#Ricerca_avanzata">Ricerca avanzata</a>
<div id="blocco_ricerca_semplice" class="search-container">
<form method="GET" action="{% url 'glossario' %}">
<input type="text" placeholder="Ricerca terminologia..." name="q" value="{{request.GET.q}}">
<button id="cancel_search_button" type=""><i class="fa fa-trash"></i></button>
<button id="search_button" type="submit"><i class="fa fa-search"></i></button>
</form>
</div>
</div>
In views.py have prepared a function to show only the query results:
def vista_ricerca_semplice(request):
template = "glossario.html"
query = request.GET.get('q')
selected_entries = glossary_entry.objects.filter(Q(Lemma_it__icontains=query))
context = {'selected_entries':selected_entries}
return render(request, template, context)
Note: Lemma_it is the field of my model I want to search and glossary_entry is the name of my model
To tell the truth I am looking for a command to do the query on all the model fields without typing
selected_entries = glossary_entry.objects.filter(Q(Lemma_it__icontains=query) | Q(field2__icontains=query) | Q(field3__icontains=query) ...)
In app/urls.py I have mapped the url of the search results:
from django.urls import path
from . import views
from .views import vista_ricerca_semplice
urlpatterns=[
path('', views.home, name='home'),
path('glossario', views.glossario, name="glossario"),
path('glossario', views.vista_ricerca_semplice, name="vista_ricerca_semplice"),
]
But it simply does not work.
If for example I type "attempt1", the console returns
[19/Sep/2019 18:08:00] "GET /glossario?q=attempt1 HTTP/1.1" 200 126941
And it updates the page but there is no query. The view does not change.
What's the error here?

Answer 1

I have been working on a similar project like yours but mine is a school management system.
I have implemented a search bar and it is working perfectly.
in views.py
def search_student(request):
student_list = DataStudent.objects.all()
student_filter = StudentFilter(request.GET, queryset=student_list)
return render(request, 'accounts/Students/Search/student_list.html', {'filter': student_filter})
and in urls.py
from django.conf.urls import url, include
from . import views
urlpatterns=[
url(r'^search_student', views.search_student, name="search_student")
]
in student_list.html
{% extends 'base.html' %}
{% block body %}
<div class="container" style="margin-left: 200px;font-size: 20px; padding: 0px 10px;">
{% load crispy_forms_tags %}
<form method="get">
<nav class="container nav navbar-expand navbar" >
<div style="color:black; font-size:160%">
<ul class="navbar-nav mr-auto" >
<li class="nav-item">
{{ filter.form.name|as_crispy_field }}
</li>
<li class="nav-item">
{{ filter.form.Class|as_crispy_field }}
</li>
<li class="nav-item">
{{ filter.form.stream|as_crispy_field }}
</li>
<li style="margin-left:5%"> <button type="submit" style="margin-top:60%;" class="btn btn-primary">Search </button>
</li>
</ul>
</div>
</nav>
</form>
<ul>
<div class="container" style="margin-left:2px; font-size:15px; padding:3px">
<table class="table table-hover" border="2">
<thead class="table-success">
<tr>
<td>Reg Number</td>
<td>Photo</td>
<td>Name</td>
<td>Class</td>
<td>Stream</td>
<td>Admision No</td>
<td>Action</td>
</tr>
</thead>
<tbody>
{% for student in filter.qs %}
<tr>
<td>{{ student.admission_no}}</td>
<td>{% if student.Student_Photo %}<img src="{{ student.Student_Photo.url}}" width="50">{% endif %}</td>
<td>{{ student.name}}</td>
<td>{{ student.Class}}</td>
<td>{{ student.stream}}</td>
<td>{{ student.admission_no}}</td>
<link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.0/css/bootstrap.min.css" rel="stylesheet" id="bootstrap-css">
<td><a class="btn btn-primary a-btn-slide-text" href="{% url 'singlestudentdetails' pk=student.id %}"><span class="glyphicon glyphicon-eye-open" aria-hidden="true"></span>
<span><strong>View</strong></span></a>
<a class="btn btn-danger a-btn-slide-text" href="{% url 'deletestudent' pk=student.id %}"><span class="glyphicon glyphicon-remove" aria-hidden="true"></span>
<span><strong>Delete</strong></span> </a>
</td>
{% endfor %}
</tr>
</tbody>
</table>
</div>
</div>
{% endblock %}
I hope this helps you fellow dev, happy coding

Answer 2

SOLVED
As pointed by ,the problem was that I had two views functions pointing at the same path (template).
This cannot be. One template/path cannot be pointed by more than one view function.
So I eliminated all the code related to my previous view function vista_ricerca_semplice
I solved my problem by changing code in urls.py and views.py like this:
In views.py:
def glossario(request):
query = request.GET.get('q')
template = "glossario.html"
# query executed
if query:
query = request.GET.get('q')
selected_entries = glossary_entry.objects.filter(Q(Lemma_it__icontains=query))
return render(request, template, {'all_entries':selected_entries})
# no query
else:
all_entries = glossary_entry.objects.all
return render(request, template, {'all_entries':all_entries})
In Urls.py
urlpatterns=[
path('', views.home, name='home'),
path('glossario', views.glossario, name="glossario"),
]