How can I profile a query and find where it is triggered to optimize it? I'm trying to use django toolbar but it doesn't show which function is triggering the query so I don't know where to fix.
You can go to the function that is calling the query by clicking on the plus on the left side of the query, using django debug_toolbar
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I have a django model that I am basically querying on keypress using ajax to find possible matches cause I am avoiding duplicated rows.
Now my question is how can I copy all the rows from a django model and query on it rather than hitting the database every time the user presses a key because I do not think this is a good idea and please correct me if I am wrong.
What are the consequences of hitting a database on keypress?
I tried to use django signals to be triggered for five different models. But, I also have the same models being used in another function and this function imports an XML file. So, it makes my page slow because of the signal.
I was wondering if I can change it to a normal function to be triggered when the user clicks in logout. How can it be done? Should I use ajax to do it or there is another way?
I followed the DJango-tables2 official tutorial and was able to create data set in the terminal using:
Person.objects.bulk_create([Person(name='Jieter'), Person(name='Bradley')])
However, the new data in the table on the website doesn't show up until I hit the refresh button. My question is how the table can be updated/refreshed without any human interaction on the webpage.
What I'm trying to achieve is to update the table on the webpage without human interaction as soon as new data comes in. I'm relatively new to this, any suggestions would be greatly appreciated.
Thank you.
To avoid refreshing the page you would need to get new data using an Ajax request, this table use template rendering meaning it is not meant to work like you want to use it.
Usually, to do what you want to do, you need a front end JavaScript component like Datatables.net, FancyGrid ... and make requests to server using Ajax to get new data.
How can I add a generalized condition in django models like if I filter using ORM object the condition should automatically get added.
I have done similar in cake PHP and YII where I actually get the query ORM and I can add a condition that gets attached to the query and later the query is fired.
Looking for similar kind of function in Django for Users Model.
User.objects.filter(date_joined__range=(start_date_time, end_date_time))
I want whenever I filter using this it should add a condition to the query.
Answers and suggestions would be appreciated.
I inserted through SQL (manage.py dbshell) a handful of records. I then went to view the records in the Django admin interface. All of the records appeared, as expected.
However, any queries via Django (not direct SQL), did not return the records. Only after I went to a record through the admin interface, and clicked Save did the record appear in the query.
I'm new to Django, but after repeated searching and reading Django documentation, I did not find an answer. Any idea what is going on, and what can be done to make the SQL INSERT statements appear in queries without visiting each record to Save it through the admin interface?
Maybe you have to declare the transaction "dirty":
from django.db import transaction
transaction.set_dirty()