command

I am trying to use the call_command method to call the dumpdata command . Manually, I use it as follows to save the data to a file. python manage.py dumpdata appname_one appname_two > /path/to/save/file.json and it saves the json file. Now, I am in a situation where I need to call this command using the call_command method. I am able to print out the json from the command using the following: from django.core.management import call_command call_command('dumpdata', 'appname_one', 'appname_two') Is there a way I can save the given data to a file like we do it from the command line? had to

I have a custom command and I try to execute them from the context menu, but they are always displayed as disabled unless I click any button on the UI (buttons do not have anything to do with commands). After clicking a button, commands start to be displayed correctly (when they are unavailable they get disabled and enabled if available). Edit: it turns out that it is not the button click which makes command work correctly, but button or other controls in focus (e.g. if I tab into a control this also enables my commands). Here is the code for commands: <Window.InputBindings> <KeyBinding

In my Django project I have to do repeatedly some processing in the background. This processing needs access to Django stuff, so I put it into Django's commands and run it as cronjob. Right now I realize, that I have to do some of them more frequently (cronjob has limitation to invoke command at most every 1 minute). Another problem is that I don't have enough control, to protect running the same command in one time. It's happen when one processing takes longer than one minute. I think that I should run them like daemons, but I am looking for pure way to do it with Django. Have you ever faced

I realised that when using an InvokeCommandAcction associated to an EventTrigger, the original event was still routing up to the parent elements until it is handled. Well, I guess it is an expected behavior. But my question is how I can mark the event as Handled so it does not propagate up through the whole UI tree? Actually, as you handle this event in a command, everything will be handled in this command, therefore it does not need to propagate. And in one corner case I found, it causes some unwanted behavior. For example, I open a new window when a user double click an element

What is the difference between WPF Command and Event ? testalino Generally speaking you can do almost the same with events as with commands, it is just a different pattern of handling user interaction. Commands in WPF allow you to move the implementation of a command handler to the buisness layer. Commands combine Enable state and executation, so everything is in place. Reade more by searching for the MVVM pattern. Commands are more complex to implement at first, so if your application is small you should consider just sticking to events. Raj Commands are similar to Events except we can