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How do I check two or more conditions in one ?
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Thanks for contributing an answer to Stack Overflow!Please be sure to answer the question. Provide details and share your research!But avoid …Asking for help, clarification, or responding to other answers.Making statements based o...
Iterate over model instance field names and values in template
...nk of it as just a standard output of the values of that instance in table format, with the field name (verbose_name specifically if specified on the field) in the first column and the value of that field in the second column.
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Get URL query string parameters
... "less code needed" way to get parameters from a URL query string which is formatted like the following?
11 Answers
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What are rvalues, lvalues, xvalues, glvalues, and prvalues?
... of moving things get messy.
Are they needed? Probably not if we wish to forfeit the new features. But to allow better optimization we should probably embrace them.
Quoting n3055:
An lvalue (so-called, historically,
because lvalues could appear on the
left-hand side of an assignment
expression...
What is the (function() { } )() construct in JavaScript?
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It’s an Immediately-Invoked Function Expression, or IIFE for short. It executes immediately after it’s created.
It has nothing to do with any event-handler for any events (such as document.onload).
Consider the part within the first pair of parentheses: (function(){})();....it i...
Adding days to a date in Python
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@dan-klasson It doesn't work for me, date object don't have timedelta method. What Python version are you using?
– DrTyrsa
Jul 17 '17 at 6:32
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How to add column if not exists on PostgreSQL?
... or server-side dynamic strings executed as queries), it would be a recipe for disaster as it opens you to SQL injection attacks.
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Installed Ruby 1.9.3 with RVM but command line doesn't show ruby -v
...something to RVM that produces lots of errors, the only safe way of fixing for now is to:
sudo apt-get --purge remove ruby-rvm
sudo rm -rf /usr/share/ruby-rvm /etc/rvmrc /etc/profile.d/rvm.sh
open new terminal and validate environment is clean from old RVM settings (should be no output):
env | g...
Token Authentication for RESTful API: should the token be periodically changed?
... renew their authentication token. This of course is up to the server to enforce.
The default TokenAuthentication class does not support this, however you can extend it to achieve this functionality.
For example:
from rest_framework.authentication import TokenAuthentication, get_authorization_he...
Can (domain name) subdomains have an underscore “_” in it?
...r RFC mentioned here deal with different things. The original
question was for domain names. If the question is for host
names (or for URLs, which include a host name), then this is
different, the relevant standard is RFC 1123, section 2.1 "Host
Names and Numbers" which limits host names to
letters-...