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Django-Admin: CharField as TextArea

...eld( widget=forms.Textarea ) class Meta: model = Cab class Cab_Admin( admin.ModelAdmin ): form = CabModelForm The form attribute of admin.ModelAdmin is documented in the official Django documentation. Here is one place to look at. ...
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Why is “import *” bad?

...citly imported ones, and possibly point to very different things. Defining __all__ in bar is often wise -- this states what will implicitly be imported - but still it's hard to trace where objects come from, without reading and parsing the bar module and following its imports. A network of import * ...
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What are the rules for the “…” token in the context of variadic templates?

...rgs...) above! You can use ... to initialize an array also as: struct data_info { boost::any data; std::size_t type_size; }; std::vector<data_info> v{{args, sizeof(T)}...}; //pattern = {args, sizeof(T)} which is expanded to this: std::vector<data_info> v { {arg0, sizeo...
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How to determine if object is in array [duplicate]

...(In fact, using lodash, this whole solution becomes a one-liner, combining _.some and _.isEqual: _.some(list, v => _.isEqual(v, o)).) – cdhowie Dec 23 '19 at 18:34 ...
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Do you need text/javascript specified in your tags?

...he same kind of short-sighted thinking that makes people name their files "_new" and confuses other people for years. Is it the "_new"? Or "_new_new"? Or "_newer"? IMO it's short-sighted. – Slobaum Apr 11 '13 at 1:51 ...
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Guaranteed lifetime of temporary in C++?

... a "full-expression" in this case: printf("%s", strdup(std::string("$$$").c_str()) ); ?I mean if strdup(std::string("$$$").c_str()) is taken as the full expression, then the pointer that strdup sees is valid. If std::string("$$$").c_str() is a full expression, then the pointer that strdup sees is in...
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What does the 'b' character do in front of a string literal?

... Actually, if you've imported unicode_literals from __future__, this will "reverse" the behavior for this particular string (in Python 2.x) – Romuald Brunet Mar 14 '13 at 16:27 ...
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ActionController::InvalidAuthenticityToken

...le Entity) was returned to the user. The solution for Rails 3: Add: skip_before_filter :verify_authenticity_token or as "sagivo" pointed out in Rails 4 add: skip_before_action :verify_authenticity_token On pages which do caching. As @toobulkeh commented this is not a vulnerability on ...
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How to keep environment variables when using sudo

...udo the environment variables are not there. For example after setting HTTP_PROXY the command wget works fine without sudo . However if I type sudo wget it says it can't bypass the proxy setting. ...
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What is external linkage and internal linkage?

...al linkage but unreachable from other translation units. class invisible_to_others { }; } share | improve this answer | follow | ...