大约有 47,000 项符合查询结果(耗时:0.0512秒) [XML]
How do you serialize a model instance in Django?
... assuming obj is your model instance
dict_obj = model_to_dict( obj )
You now just need one straight json.dumps call to serialize it to json:
import json
serialized = json.dumps(dict_obj)
That's it! :)
share
|
...
Is there a way to crack the password on an Excel VBA Project?
...assword protected, and it seems there's a lack of documentation... no-one knows the passwords.
22 Answers
...
How to have TFS 2010 detect changes done to files outside of Visual Studio?
...work connection available that allows you to check out the files.
If you know what files you've modified, you can just check them out from within Visual Studio, then you'll be able to check them back in.
If you don't know what files you've edited, you can detect the changes by running the tfpt onl...
How to center a subview of UIView
...ectangle origin and center does fit the same coordinates as it's parent
Now let's try to add subView another SubSubView, and giving subSubview same origin as subView, but make subSubView a child view of subView
We'll add this code:
var subSubView = UIView();
subSubView.frame.origin = subView.fr...
How can I enable or disable the GPS programmatically on Android?
I know that the question about turning on/off GPS programatically on android has been discussed many times , and the answer is always the same:
...
Add a reference column migration in Rails 4
...
Now, if you use the special generator syntax for migrations, Rails 4.2 will automatically create the correct migration with foreign key constraints included. rails g migration AddUserToUploads user:references produces add_ref...
How to get JavaScript caller function line number? How to get JavaScript caller source URL?
...
Hi, Thanks for that addon. do you know if its possible to get line number from previous call ? Lets say method A calls B , and now in B I would like to know in what line under A the call was made?
– Tal
Aug 30 '09 at 11:1...
Why can't I save CSS changes in Firebug? [closed]
...S and SAVE on local file system using Chrome Developer Tools
I tried it now and it works great highlighting the changed lines. Just click Save and you're done! :)
Here's a video explaining this and much more: Google I/O 2011: Chrome Dev Tools Reloaded
I hope it helps if it doesn't matter to you...
Simple explanation of MapReduce?
...rite it like this
A = [7, 8, 9]
sum = A.reduce( 0, (x, y) => x + y )
Now it's a little confusing why there are 2 arguments (0 and the function with x and y) passed. For a reduce function to be useful, it must be able to take 2 items, compute something and "reduce" that 2 items to just one sing...
The Role Manager feature has not been enabled
... After adding above to web.config roleManager is enabled. But now I am getting exception Unable to connect to SQL Server database
– Irfan Yusanif
Jan 4 '16 at 13:51
...