todo_app | todo app in react | Learning library

thanks for your help in advance, I have an application that is basically a TODO app, the problem here is that I have a List of type String in which the user will put the tasks that he needs to do, and that is why what I try to do is to check when the list is still empty, show a Column with an image, and if the user adds an item the list is no longer empty, so it shows the list and not the column, for that I have made a simple if in the method buildscreen() . The problem: The widget after adding a new item to my list is not rebuilt again even after calling a setState in addTask() and therefore it does not see if the list is full or empty and it continues to show the Column with the image.

Here is the code

I have an error on the flutter run. Probably, some problem is on

I have a simple table view cell containing two labels whose positioning constraints disappear at runtime (the width and aspect ration remain). There are no warnings, no errors in the storyboard view, no console log and I don't use size classes.

The views are misplaced (they stick to the top left corner) and when I launch the Debug View Hierarchy there is an exclamation mark on a purple background indicating an ambiguous position. Upon inspection it turns out that the position constraints are not there anymore.

I have tried removing and adding them again, I have compared almost every IB inspector in the view hierarchy with a working implementation and couldn't figure out a difference. I have inspected the views with lldb and the _autolayoutTrace doesn't show the constraints.

I know I can remove the controller in Interface Builder and rebuild it but I would appreciate an insight into debugging that kind of issue.

Here is the part of the storyboard describing the table view controller and prototype cell :

I've tried to run this to-do app many times, first I wrote my own code, but it gave a lot of errors so I followed multiple tutorials, and read the documentation.

First, I tried to submit data using html forms only(i.e.without making a forms.py file), but it didn't return anything and just kept redirecting to my todo page; although I was able to add new items through the admin-site, but my form didn't return anything. Second, I redid the entire project, removed the 'due_date' field (because it was causing problems) and created ModelForm in forms.py

I found out the main problem lies somewhere in my views.py file, with my AddTodo function. I made changes in my function multiple times following instructions from here, here, and here when I was writing the views for html forms only.

In my models.py file:

I Want To Fix This Error:

I'm trying to add recaptcha3 in my django website but i'm getting this error again and again i don't know how to fix please help me:

And Also Please Tell why i'm getting this error so if i get this error again i can fix it

I'm Getting This Error:

I am not much familiar with django. Was working on a learning project. So here I am getting the error which says UnboundLocalError, "local variable 'url_array' referenced before assignment" . Here's my form.py , views.py and html code. Please have a look and give me a solution.

forms.py

I was trying to learn to link flask with MySQL database from this tutorial.

I installed flask-mysqldb using pip3 into my virtual environment which was successful.

There are some answers but they all cover fail to install flask-mysqldb in my case the installation itself is successful but I am still getting the error on the webpage.

When I am starting the server using flask run and trying to run the routed URL localhost:5000/ into the browser I am getting an Import Error for flask-mysqldb.

This is the exact error I am getting:

Hi I'm trying to learn Docker.

As a starting point, I've followed DigitalOcean's setup tutorial for Laravel here.

I've managed to get all containers up and even finished building my Laravel app. Now I want to setup a 2nd DB for testing.

I duplicated the settings of the db part of docker-compose, and changed the container name and ports.

All containers setup fine, but whenever I try do run docker exec in either of the db containers, I get a 2002 error, which I did not encounter while I had only 1 DB container running: