use crispy with bootstrap4 for forms, job creation view with autocomplete tags

ipv6work/settings.py

@@ -39,6 +39,18 @@ INSTALLED_APPS = [
     'django.contrib.staticfiles',
 ]
 
+# Libraries and other apps
+INSTALLED_APPS += [
+    'crispy_forms',
+
+    # Used for autocomplete and dynamic creation of tags.
+    # Ff this widget is required for admin, place these
+    # before 'django.contrib.admin' app
+    'dal',
+    'dal_select2',
+]
+
+# Our apps
 INSTALLED_APPS += [
     'jobs',
 ]
@@ -122,3 +134,6 @@ USE_TZ = True
 # https://docs.djangoproject.com/en/2.1/howto/static-files/
 
 STATIC_URL = '/static/'
+
+
+CRISPY_TEMPLATE_PACK = 'bootstrap4'

jobs/autocomplete.py

@@ -0,0 +1,27 @@
+from dal import autocomplete
+
+from .models import Tag
+
+
+class AuthenticatedUserCreateMixin():
+    ''' By default, autocomplete-light only allows creation of
+    choices if the user has add permission on the model. However,
+    we need to allow any authenticated user to create tags
+    '''
+    def has_add_permission(self, request):
+        print("i am called", request.user)
+        return request.user.is_authenticated
+
+
+class TagAutocomplete(
+        AuthenticatedUserCreateMixin, autocomplete.Select2QuerySetView):
+    def get_queryset(self):
+        if not self.request.user.is_authenticated:
+            return Tag.objects.none()
+
+        qs = Tag.objects.all()
+
+        if self.q:
+            qs = qs.filter(name__icontains=self.q)
+
+        return qs

jobs/forms.py

@@ -0,0 +1,21 @@
+from django import forms
+from crispy_forms.helper import FormHelper
+from crispy_forms.layout import Submit
+from dal.autocomplete import ModelSelect2Multiple
+
+from .models import Job
+
+
+class JobForm(forms.ModelForm):
+    class Meta:
+        model = Job
+        fields = ('title', 'description', 'tags')
+        widgets = {
+            'tags': ModelSelect2Multiple(url='jobs:tag-autocomplete')
+        }
+
+    def __init__(self, *args, **kwargs):
+        super().__init__(*args, **kwargs)
+        self.helper = FormHelper()
+        self.helper.form_method = 'post'
+        self.helper.add_input(Submit('submit', 'Post Job'))

jobs/models.py

@@ -9,6 +9,9 @@ User = get_user_model()
 class Tag(models.Model):
     name = models.CharField(max_length=255, unique=True, db_index=True)
 
+    class Meta:
+        ordering = ['name']
+
     def __str__(self):
         return self.name
 

jobs/templates/base.html

@@ -18,7 +18,7 @@
             <a class="p-2 text-dark" href="#">Tags</a>
             <a class="p-2 text-dark" href="#">Jobs</a>
         </nav>
-        <a class="btn btn-outline-primary" href="#">Login</a>
+        <a class="btn btn-outline-primary" href="{% url 'jobs:create' %}">Post a job</a>
     </div>   
     
     <div class="container">

jobs/templates/jobs/job_form.html

@@ -0,0 +1,12 @@
+{% extends 'base.html' %}
+{% block title %}Post a Job{% endblock %}
+
+{% load crispy_forms_tags %}
+
+{% block body_content %}
+<div class="row">
+    <div class="col-md-12">
+        {% crispy form %}
+    </div>
+</div>
+{% endblock %}

jobs/urls.py

@@ -1,9 +1,21 @@
 from django.urls import path
 
 from . import views
+from . import autocomplete as autocomplete_views
 
 app_name = 'jobs'
 urlpatterns = [
     path('', views.Index.as_view(), name='index'),
-    path('jobs/', views.JobList.as_view(), name='jobs'),
+    path('jobs/create/', views.JobCreate.as_view(), name='create'),
+    path('jobs/', views.JobList.as_view(), name='list'),
+]
+
+
+# autocomplete endpoints
+urlpatterns += [
+    path(
+        'tag-autocomplete/',
+        autocomplete_views.TagAutocomplete.as_view(create_field='name'),
+        name='tag-autocomplete',
+    ),
 ]

jobs/views.py

@@ -1,7 +1,11 @@
-from django.shortcuts import render
-from django.views.generic import TemplateView, ListView
+from django.urls import reverse_lazy
+from django.views.generic import (
+    TemplateView, ListView, CreateView
+)
 
 from .models import Job
+from .forms import JobForm
+
 
 class Index(TemplateView):
     template_name = 'jobs/index.html'
@@ -11,3 +15,13 @@ class JobList(ListView):
     context_object_name = 'jobs'
     model = Job
 
+
+class JobCreate(CreateView):
+    model = Job
+    form_class = JobForm
+    success_url = reverse_lazy("jobs:list")
+
+    def form_valid(self, form):
+        obj = form.save(commit=False)
+        obj.posted_by = self.request.user
+        return super().form_valid(form)

requirements.txt

@@ -1 +1,3 @@
-Django==2.1.2
+Django==2.1.2
+django-crispy-forms==1.7.2
+git+https://github.com/yourlabs/django-autocomplete-light.git#egg=django-autocomplete-light