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Create empty queryset by default in django form fields
I have this fields in form:
2 Answers
2
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What programming practice that you once liked have you since changed your mind about? [closed]
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Hungarian notation (both Forms and Systems).
I used to prefix everything. strSomeString or txtFoo.
Now I use someString and textBoxFoo. It's far more readable and easier for someone new to come along and pick up. As an added bonus, it's trivial to ke...
What is “vectorization”?
...term "vectorization" is also used to describe a higher level software transformation where you might just abstract away the loop altogether and just describe operating on arrays instead of the elements that comprise them)
The difference between vectorization and loop unrolling:
Consider the follo...
How to disable editing of elements in combobox for c#?
I have some elements in a ComboBox (WinForms with C#). I want their content to be static so that a user cannot change the values inside when the application is ran. I also do not want the user adding new values to the ComboBox
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Best way to hide a window from the Alt-Tab program switcher?
...It's easy to hide a window from the taskbar via a property in both Windows Forms and WPF, but as far as I can tell, this doesn't guarantee (or necessarily even affect) it being hidden from the Alt + ↹Tab dialog. I've seen invisible windows show up in Alt + ↹Tab , and I'm just wondering what...
What is the purpose of the single underscore “_” variable in Python?
...in i18n (see the
gettext
documentation for example), as in code like
raise forms.ValidationError(_("Please enter a correct username")).
# the usage of underscore in translation comes from examples in the doc
# that have been copy/pasted over decades, like this one:
import gettext
ge...
Using curl to upload POST data with files
...y send data parameters in HTTP POST but to also upload files with specific form name. How should I go about doing that ?
9 ...
Squash the first two commits in Git? [duplicate]
...uashed into the initial one):
Go back to the last commit that we want to form the initial commit (detach HEAD):
git checkout <sha1_for_B>
Reset the branch pointer to the initial commit, but leaving the index and working tree intact:
git reset --soft <sha1_for_A>
Amend the initial t...
Is a url query parameter valid if it has no value?
...eptable to your server-side framework/code
The URI RFC doesn't mandate a format for the query string. Although it is recognized that the query string will often carry name-value pairs, it is not required to (e.g. it will often contain another URI).
3.4. Query
The query component contain...
What exactly can cause an “HIERARCHY_REQUEST_ERR: DOM Exception 3”-Error?
... minwidth: 10
});
dlg.parent().appendTo(jQuery("form:first"));
});
In the example above, uses the var "dlg" to run the function appendTo.
Then error “HIERARCHY_REQUEST_ERR" will not come out again.
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