Merge pull request #21 from techiediaries/location-based-web-app-geodjango

dbader · web-flow · commit 89ffca88f672 · 2018-12-12T16:50:50.000-08:00
Location based web app geodjango
diff --git a/nearbyshops/data.json b/nearbyshops/data.json
diff --git a/nearbyshops/manage.py b/nearbyshops/manage.py
@@ -0,0 +1,15 @@
+#!/usr/bin/env python
+import os
+import sys
+
+if __name__ == "__main__":
+    os.environ.setdefault("DJANGO_SETTINGS_MODULE", "nearbyshops.settings")
+    try:
+        from django.core.management import execute_from_command_line
+    except ImportError as exc:
+        raise ImportError(
+            "Couldn't import Django. Are you sure it's installed and "
+            "available on your PYTHONPATH environment variable? Did you "
+            "forget to activate a virtual environment?"
+        ) from exc
+    execute_from_command_line(sys.argv)
diff --git a/nearbyshops/nearbyshops/__init__.py b/nearbyshops/nearbyshops/__init__.py
diff --git a/nearbyshops/nearbyshops/settings.py b/nearbyshops/nearbyshops/settings.py
@@ -0,0 +1,130 @@
+"""
+Django settings for nearbyshops project.
+
+Generated by 'django-admin startproject' using Django 2.1.1.
+
+For more information on this file, see
+https://docs.djangoproject.com/en/2.1/topics/settings/
+
+For the full list of settings and their values, see
+https://docs.djangoproject.com/en/2.1/ref/settings/
+"""
+
+import os
+
+# Build paths inside the project like this: os.path.join(BASE_DIR, ...)
+BASE_DIR = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
+
+
+# Quick-start development settings - unsuitable for production
+# See https://docs.djangoproject.com/en/2.1/howto/deployment/checklist/
+
+# SECURITY WARNING: keep the secret key used in production secret!
+SECRET_KEY = "+pdwy6_m&)^+8g!3%^_r7$&xr)$)mr7y_dznrq1h&a*-879#3s"
+
+# SECURITY WARNING: don't run with debug turned on in production!
+DEBUG = True
+
+ALLOWED_HOSTS = []
+
+
+# Application definition
+
+INSTALLED_APPS = [
+    "django.contrib.admin",
+    "django.contrib.auth",
+    "django.contrib.contenttypes",
+    "django.contrib.sessions",
+    "django.contrib.messages",
+    "django.contrib.staticfiles",
+    "django.contrib.gis",
+    "shops",
+]
+
+MIDDLEWARE = [
+    "django.middleware.security.SecurityMiddleware",
+    "django.contrib.sessions.middleware.SessionMiddleware",
+    "django.middleware.common.CommonMiddleware",
+    "django.middleware.csrf.CsrfViewMiddleware",
+    "django.contrib.auth.middleware.AuthenticationMiddleware",
+    "django.contrib.messages.middleware.MessageMiddleware",
+    "django.middleware.clickjacking.XFrameOptionsMiddleware",
+]
+
+ROOT_URLCONF = "nearbyshops.urls"
+
+TEMPLATES = [
+    {
+        "BACKEND": "django.template.backends.django.DjangoTemplates",
+        "DIRS": [os.path.join(BASE_DIR, "templates")],
+        "APP_DIRS": True,
+        "OPTIONS": {
+            "context_processors": [
+                "django.template.context_processors.debug",
+                "django.template.context_processors.request",
+                "django.contrib.auth.context_processors.auth",
+                "django.contrib.messages.context_processors.messages",
+            ]
+        },
+    }
+]
+
+WSGI_APPLICATION = "nearbyshops.wsgi.application"
+
+
+# Database
+# https://docs.djangoproject.com/en/2.1/ref/settings/#databases
+
+DATABASES = {
+    "default": {
+        "ENGINE": "django.contrib.gis.db.backends.postgis",
+        "NAME": "gis",
+        "USER": "user001",
+        "PASSWORD": "123456789",
+        "HOST": "localhost",
+        "PORT": "5432",
+    }
+}
+
+
+# Password validation
+# https://docs.djangoproject.com/en/2.1/ref/settings/#auth-password-validators
+
+AUTH_PASSWORD_VALIDATORS = [
+    {
+        "NAME": "django.contrib.auth.password_validation"
+        + ".UserAttributeSimilarityValidator"
+    },
+    {
+        "NAME": "django.contrib.auth.password_validation"
+        + ".MinimumLengthValidator"
+    },
+    {
+        "NAME": "django.contrib.auth.password_validation"
+        + ".CommonPasswordValidator"
+    },
+    {
+        "NAME": "django.contrib.auth.password_validation"
+        + ".NumericPasswordValidator"
+    },
+]
+
+
+# Internationalization
+# https://docs.djangoproject.com/en/2.1/topics/i18n/
+
+LANGUAGE_CODE = "en-us"
+
+TIME_ZONE = "UTC"
+
+USE_I18N = True
+
+USE_L10N = True
+
+USE_TZ = True
+
+
+# Static files (CSS, JavaScript, Images)
+# https://docs.djangoproject.com/en/2.1/howto/static-files/
+
+STATIC_URL = "/static/"
diff --git a/nearbyshops/nearbyshops/urls.py b/nearbyshops/nearbyshops/urls.py
@@ -0,0 +1,21 @@
+"""nearbyshops URL Configuration
+
+The `urlpatterns` list routes URLs to views. For more information please see:
+    https://docs.djangoproject.com/en/2.1/topics/http/urls/
+Examples:
+Function views
+    1. Add an import:  from my_app import views
+    2. Add a URL to urlpatterns:  path('', views.home, name='home')
+Class-based views
+    1. Add an import:  from other_app.views import Home
+    2. Add a URL to urlpatterns:  path('', Home.as_view(), name='home')
+Including another URLconf
+    1. Import the include() function: from django.urls import include, path
+    2. Add a URL to urlpatterns:  path('blog/', include('blog.urls'))
+"""
+from django.contrib import admin
+from django.urls import path
+
+from shops import views
+
+urlpatterns = [path("", views.Home.as_view()), path("admin/", admin.site.urls)]
diff --git a/nearbyshops/nearbyshops/wsgi.py b/nearbyshops/nearbyshops/wsgi.py
@@ -0,0 +1,16 @@
+"""
+WSGI config for nearbyshops project.
+
+It exposes the WSGI callable as a module-level variable named ``application``.
+
+For more information on this file, see
+https://docs.djangoproject.com/en/2.1/howto/deployment/wsgi/
+"""
+
+import os
+
+from django.core.wsgi import get_wsgi_application
+
+os.environ.setdefault("DJANGO_SETTINGS_MODULE", "nearbyshops.settings")
+
+application = get_wsgi_application()
diff --git a/nearbyshops/readme.md b/nearbyshops/readme.md
@@ -0,0 +1,4 @@
+# Make a Location-Based Web App With Django and GeoDjango
+
+This folder contains the bonus material & example projects for our [Make a Location-Based Web App With Django and GeoDjango](https://realpython.com/location-based-app-with-geodjango-tutorial) tutorial on Real Python.
+
diff --git a/nearbyshops/shops/__init__.py b/nearbyshops/shops/__init__.py
diff --git a/nearbyshops/shops/admin.py b/nearbyshops/shops/admin.py
@@ -0,0 +1,10 @@
+# Register your models here.
+
+from django.contrib import admin
+from django.contrib.gis.admin import OSMGeoAdmin
+from .models import Shop
+
+
+@admin.register(Shop)
+class ShopAdmin(OSMGeoAdmin):
+    list_display = ("name", "location")
diff --git a/nearbyshops/shops/apps.py b/nearbyshops/shops/apps.py
@@ -0,0 +1,5 @@
+from django.apps import AppConfig
+
+
+class ShopsConfig(AppConfig):
+    name = "shops"
diff --git a/nearbyshops/shops/migrations/0001_initial.py b/nearbyshops/shops/migrations/0001_initial.py
@@ -0,0 +1,29 @@
+# Generated by Django 2.1.2 on 2018-10-20 04:25
+
+import django.contrib.gis.db.models.fields
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    initial = True
+
+    dependencies = [
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='Shop',
+            fields=[
+                ('id', models.AutoField(auto_created=True,
+                                        primary_key=True,
+                                        serialize=False,
+                                        verbose_name='ID')),
+                ('name', models.CharField(max_length=70)),
+                ('location',
+                    django.contrib.gis.db.models.fields.PointField(srid=4326)),
+                ('address', models.CharField(max_length=100)),
+                ('city', models.CharField(max_length=50)),
+            ],
+        )
+    ]
diff --git a/nearbyshops/shops/migrations/0002_auto_20181020_0450.py b/nearbyshops/shops/migrations/0002_auto_20181020_0450.py
@@ -0,0 +1,40 @@
+# Generated by Django 2.1.2 on 2018-10-20 04:50
+
+from django.db import migrations
+import json
+from django.contrib.gis.geos import fromstr
+from pathlib import Path
+
+DATA_FILENAME = 'data.json'
+
+
+def load_data(apps, schema_editor):
+    Shop = apps.get_model('shops', 'Shop')
+    jsonfile = Path(__file__).parents[2] / DATA_FILENAME
+
+    with open(str(jsonfile)) as datafile:
+        objects = json.load(datafile)
+        for obj in objects['elements']:
+            try:
+                objType = obj['type']
+                if objType == 'node':
+                    tags = obj['tags']
+                    name = tags.get('name', 'no-name')
+                    longitude = obj.get('lon', 0)
+                    latitude = obj.get('lat', 0)
+                    location = fromstr(f'POINT({longitude} {latitude})',
+                        srid=4326)
+                    Shop(name=name, location=location).save()
+            except KeyError:
+                pass
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('shops', '0001_initial'),
+    ]
+
+    operations = [
+        migrations.RunPython(load_data)
+    ]
diff --git a/nearbyshops/shops/migrations/__init__.py b/nearbyshops/shops/migrations/__init__.py
diff --git a/nearbyshops/shops/models.py b/nearbyshops/shops/models.py
@@ -0,0 +1,9 @@
+# Create your models here.
+from django.contrib.gis.db import models
+
+
+class Shop(models.Model):
+    name = models.CharField(max_length=100)
+    location = models.PointField()
+    address = models.CharField(max_length=100)
+    city = models.CharField(max_length=50)
diff --git a/nearbyshops/shops/templates/shops/index.html b/nearbyshops/shops/templates/shops/index.html
@@ -0,0 +1,22 @@
+<!DOCTYPE html>
+<html lang="en">
+
+<head>
+    <meta charset="utf-8">
+    <title>Nearby Shops</title>
+</head>
+
+<body>
+
+    <h1>Nearby Shops</h1>
+    {% if shops %}
+    <ul>
+        {% for shop in shops %}
+        <li>
+            {{ shop.name }} : {{shop.distance}} 
+        </li>
+        {% endfor %}
+    </ul>
+    {% endif %}
+</body>
+</html>
diff --git a/nearbyshops/shops/tests.py b/nearbyshops/shops/tests.py
@@ -0,0 +1 @@
+# Create your tests here.
diff --git a/nearbyshops/shops/views.py b/nearbyshops/shops/views.py
@@ -0,0 +1,21 @@
+from django.views import generic
+from django.contrib.gis.geos import Point
+from django.contrib.gis.db.models.functions import Distance
+from .models import Shop
+
+longitude = -80.191_788
+latitude = 25.761_681
+
+user_location = Point(longitude, latitude, srid=4326)
+
+
+class Home(generic.ListView):
+    model = Shop
+    context_object_name = "shops"
+    queryset = Shop.objects.annotate(
+        distance=Distance("location", user_location)
+    ).order_by("distance")[0:6]
+    template_name = "shops/index.html"
+
+
+home = Home.as_view()

-Original file line number
+Diff line change
@@ @@ -0,0 +1,4 @@ @@
 +# Make a Location-Based Web App With Django and GeoDjango
++
 +This folder contains the bonus material & example projects for our [Make a Location-Based Web App With Django and GeoDjango](https://realpython.com/location-based-app-with-geodjango-tutorial) tutorial on Real Python.
++