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Django Forms: if not valid, show form with error message
...e view when the form is not valid then in template you can access the form errors using form.errors.
{% if form.errors %}
{% for field in form %}
{% for error in field.errors %}
<div class="alert alert-danger">
<strong>{{ error|escape }}</stron...
How do I turn off PHP Notices?
I've already commented out display_errors in php.ini , but is not working.
16 Answers
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Is it not possible to stringify an Error using JSON.stringify?
I'm running into an issue when trying to pass error messages around using web sockets. I can replicate the issue I am facing using JSON.stringify to cater to a wider audience:
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Parsing IPv6 extension headers containing unknown extensions
...eader is in some way optional (it had better be), you will receive an ICMP error about that and can try again without it.
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Difference between std::result_of and decltype
...a SFINAE-friendly expression, whereas std::result_of could give you a hard error instead of a deduction failure. That has been corrected in C++14: std::result_of is now required to be SFINAE-friendly (thanks to this paper).
So on a conforming C++14 compiler, std::result_of_t<F(Args...)> is st...
error_log per Virtual Host?
...Virtual Hosts with separate log files. We cannot seem to separate the php error_log between virtual hosts.
11 Answers
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Create Pandas DataFrame from a string
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I found (by trial&error) that read_fwf takes more of read_csvs arguments than is documented, but it's true that some have no effect.
– gerrit
Jan 20 at 16:12
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Curious null-coalescing operator custom implicit conversion behaviour
...ratch for Roslyn; it now does a better job and avoids these sorts of weird errors. For some thoughts on how the optimizer in Roslyn works, see my series of articles which begins here: https://ericlippert.com/2012/12/20/nullable-micro-optimizations-part-one/
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What is the use of the @ symbol in PHP?
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It suppresses error messages — see Error Control Operators in the PHP manual.
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Detailed 500 error message, ASP + IIS 7.5
IIS 7.5 , 2008rc2, classic asp, 500 error msg:
13 Answers
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