What is Table storage?

Azure Table Storage Service (https://azure.microsoft.com/en-us/documentation/articles/storage-python-how-to-use-table-storage/) stores a large amount of structured data. I will. This service is a ** NoSQL datastore ** that accepts authenticated calls from inside and outside the Azure cloud. The point is that you can store SQL data externally. Using PTVS This is useful when you want to use SQL with Django.

Django application creation

We will create it by referring to the site of here. First, create a new Django app. Please refer to here for the creation method. Please download the ** azure ** package with pip using ** Install Python Package **.

Storage creation

At the Azure Portal (https://portal.azure.com/) Select ** [Storage Account] ➡︎ [Add] **. Basically, you can decide only the ** name ** part and then use the default settings. Also, if you have not created a ** resource group **, create one! ストレージ設定.png

Once created, the storage account will be from the account you just created ** [Account] ➡︎ [Access key] ➡︎ [Storage account / key] ** Let's remember! Required when accessing from the outside. アクセスキー.png

Fill in the source code

I referred from the site introduced first. I will omit the explanation of imported azure, but if you want to know more, [here](https://github.com/yuesan/azure-content-jajp/blob/master/articles/storage/storage-python-how- There is an explanation in to-use-table-storage.md).

`views.py`


from django.http import HttpRequest
from django.template import RequestContext
from datetime import datetime

from django.http import HttpResponse
from django.template.loader import render_to_string
from azure.storage.table import TableService, Entity

account_name = 'Storage account name'
account_key = 'key(Any of multiple keys is fine)'
table_service = TableService(account_name=account_name, account_key=account_key)
table_service.create_table('mytasks')

def list_tasks(request):      
    entities = table_service.query_entities('mytasks', '', 'name,category')
    html = render_to_string('app/test.html', {'entities':entities})     
    return HttpResponse(html)
 
 
def add_task(request):     
    name = request.GET['name']     
    category = request.GET['category']       
    table_service.insert_entity('mytasks', {'PartitionKey':name+category, 'RowKey':name, 'name':name, 'category':category})     
    entities = table_service.query_entities('mytasks', '', 'name,category')     
    html = render_to_string('app/test.html', {'entities':entities})     
    return HttpResponse(html)
 
def update_task(request):     
    name = request.GET['name']     
    category = request.GET['category']        
    partition_key = name + category     
    row_key = name     
    table_service.update_entity('mytasks', partition_key, row_key, {'PartitionKey':partition_key, 'RowKey':row_key, 'name': name, 'category':category})     
    entities = table_service.query_entities('mytasks', '', 'name,category')         
    html = render_to_string('app/test.html', {'entities':entities})     
    return HttpResponse(html)

`test.html`


<!DOCTYPE html>
<html>
    <head>
        <title></title>
    </head>     
    <body>
        <h2>My Tasks</h2> <br>     
        <table border="1">
            <tr>
                <td>Name</td>
                <td>Category</td>
            </tr>     
            {% for entity in entities %}     
                <form action="update_task" method="GET">
                    <tr>
                        <td>{{entity.name}} <input type="hidden" name='name' value="{{entity.name}}"></td>     
                        <td>{{entity.category}} 
                            <input type="hidden" name='category' value="{{entity.category}}"></td>     
                    </tr>     
                </form>     
            {% endfor %}     
        </table>     
        <br>     
        <hr>    
        <table border="1">
            <form action="add_task" method="GET">
                <tr>
                    <td>Name:</td
                    ><td><input type="text" name="name"></input></td>
                </tr>     
                <tr>
                    <td>Category:</td>
                    <td><input type="text" name="category"></input></td>
                </tr>     
                <tr>
                    <td><input type="submit" value="add task"></input></td>
                </tr>     
            </form>     
        </table>     
    </body>     
</html>

`urls.py`


urlpatterns = [
    url(r'^$', 'app.views.list_tasks'),
    url(r'^list_tasks$', 'app.views.list_tasks'),
    url(r'^add_task$', 'app.views.add_task'),
    url(r'^update_task$', 'app.views.update_task')

Run

When you execute it, there are ** Name: ** and ** Category **, so fill in each and add task will store the value in ** My Tasks **. You can also re-fill it or restart Django, of course, but the values will be preserved.

At the end

You can see that the value is actually inserted from the storage account. It's very difficult and annoying to actually install SQL in Windows, so I think it's a very nice feature, so please give it a try.

[PYTHON] How to use Azure Table storage from Django (PTVS)