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Unique BooleanField value in Django?
...eeded to accomplish this task, what I've done is override the save method for the model and have it check if any other model has the flag already set (and turn it off).
class Character(models.Model):
name = models.CharField(max_length=255)
is_the_chosen_one = models.BooleanField()
def ...
What are the big differences between TFVC (TFS Version Control) and Git for source control when usin
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What are the big differences between TFS and Git for source control when using VS 2013?
MSDN has a very extensive page on all the features and differences between Team Foundation Version Control and Git.
Is the only benefit in my case a local repository (not saying tha...
String comparison using '==' vs. 'strcmp()'
It seems that PHP's === operator is case sensitive. So is there a reason to use strcmp() ?
13 Answers
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Fastest way to convert string to integer in PHP
...hilst the cast is handled directly in the interpreter's expression calculator. This may also be the reason a co-ercion is even faster.
– staticsan
Oct 27 '08 at 6:09
10
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How to split a comma-separated string?
...(str.split(","));
Basically the .split() method will split the string according to (in this case) delimiter you are passing and will return an array of strings.
However, you seem to be after a List of Strings rather than an array, so the array must be turned into a list by using the Arrays.asLis...
100% width table overflowing div container [duplicate]
... 100%;
Set your column widths as desired; otherwise, the fixed layout algorithm will distribute the table width evenly across your columns.
For quick reference, here are the table layout algorithms, emphasis mine:
Fixed (source)With this (fast) algorithm, the horizontal layout of the table does...
Linux: copy and create destination dir if it does not exist
I want a command (or probably an option to cp) that creates the destination directory if it does not exist.
21 Answers
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How to properly URL encode a string in PHP?
I'm making a search page, where you type a search query and the form is submitted to search.php?query=your query . What PHP function is the best and that I should use for encoding/decoding the search query?
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Showing empty view when ListView is empty
For some reason the empty view, a TextView in this case, always appears even when the ListView is not empty. I thought the ListView would automatically detect when to show the empty view.
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I lost my .keystore file?
Ok folks.. long story short, I was developing on a computer that I no longer have access to. I was able to retrieve the source code, but not the .keystore file used to sign and publish my application to the market (with several updates). Am I, and my poor users, out of luck if I ever want to update?...