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How can I build multiple submit buttons django form?
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You can use self.data in the clean_email method to access the POST data before validation. It should contain a key called newsletter_sub or newsletter_unsub depending on which button was pressed.
# in the context of a django.forms form
def clean(self):
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Process all arguments except the first one (in a bash script)
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If you want a solution that also works in /bin/sh try
first_arg="$1"
shift
echo First argument: "$first_arg"
echo Remaining arguments: "$@"
shift [n] shifts the positional parameters n times. A shift sets the value of $1 to the value of $2, the value of $2 to the value of $3, and s...
How do I catch a PHP fatal (`E_ERROR`) error?
I can use set_error_handler() to catch most PHP errors, but it doesn't work for fatal ( E_ERROR ) errors, such as calling a function that doesn't exist. Is there another way to catch these errors?
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When should I choose Vector in Scala?
...e, Vector can provide most common operations reasonably fast, i.e. in O(log_32(n)). That works for prepend, append, update, random access, decomposition in head/tail. Iteration in sequential order is linear.
List on the other hand just provides linear iteration and constant time prepend, decompositi...
postgresql COUNT(DISTINCT …) very slow
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You can use this:
SELECT COUNT(*) FROM (SELECT DISTINCT column_name FROM table_name) AS temp;
This is much faster than:
COUNT(DISTINCT column_name)
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Inserting a Link to a Webpage in an IPython Notebook
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For visual learners.
[blue_text](url_here)
Thanks dbliss.
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How to prevent robots from automatically filling up a form?
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Now that your input is not visible to the user expect in PHP that your $_POST["email"] should be empty (without any value)! Otherwise don't submit the form.
Finally,all you need to do is create another input like
<input name="sender" type="text" placeholder="Your email"> after (!) the "bot-...
How unique is UUID?
...it) as possible into random number APIs. See en.wikipedia.org/wiki/Entropy_%28computing%29
– broofa
Dec 6 '14 at 13:48
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Spring Java Config: how do you create a prototype-scoped @Bean with runtime arguments?
... edited Dec 21 '17 at 23:30
AFP_555
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answered Apr 24 '17 at 18:08
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How to stop a JavaScript for loop?
... is a good approach. Thanks @T.J. Crowder
– techloris_109
Sep 13 '17 at 7:35
@T.J. Crowder which statement is a good a...