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What exactly is Arel in Rails 3.0?
...deo series on ActiveRelation.
The first general tutorial can be viewed at http://Innovative-Studios.com/#pilot
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What does the “assert” keyword do? [duplicate]
...to be enabled, though; otherwise the assert expression does nothing. See:
http://java.sun.com/j2se/1.5.0/docs/guide/language/assert.html#enable-disable
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How to tell if rails is in production?
...gt; Booting Puma
=> Rails 4.2.4 application starting in `production` on http://localhost:3000
Had Webrick in the example but some people didn't understand how changing servers would just substitute the name. Updated for clarity.
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Saving utf-8 texts in json.dumps as UTF8, not as \u escape sequence
... #python3 don't have this attribute.
#not suggest even in python2 #see:http://stackoverflow.com/questions/3828723/why-should-we-not-use-sys-setdefaultencodingutf-8-in-a-py-script
#2.overwrite /usr/lib/python2.7/sitecustomize.py or (sitecustomize.py and PYTHONPATH=".:$PYTHONPATH" python)
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What's wrong with overridable method calls in constructors?
...y between the constructor and the method.
Have a look on this sample link http://www.javapractices.com/topic/TopicAction.do?Id=215
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Forking vs. Branching in GitHub
...quest.
The below links provide the difference in a well-explained manner :
https://blog.gitprime.com/the-definitive-guide-to-forks-and-branches-in-git/
https://buddy.works/blog/5-types-of-git-workflows
http://www.continuousagile.com/unblock/branching.html
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When do I need to use a semicolon vs a slash in Oracle SQL?
...s "re-execute last SQL or PL/SQL command that I just executed".
See
http://ss64.com/ora/syntax-sqlplus.html
Rule of thumb would be to use slash with things that do BEGIN .. END or where you can use CREATE OR REPLACE.
For inserts that need to be unique use
INSERT INTO my_table ()
SELECT &...
How can I verify a Google authentication API access token?
...post
get the access token as accessToken and post it and get the response
https://www.googleapis.com/oauth2/v1/tokeninfo?access_token=accessToken
you can try in address bar in browsers too, use httppost and response in java also
response will be like
{
"issued_to": "xxxxxxxxxxxxx-xxxxxxxx...
PHP DOMDocument errors/warnings on html5-tags
...tagthatdoesnotexist>", LIBXML_NOWARNING );
echo $doc->saveHTML();
http://php.net/manual/en/libxml.constants.php
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Why does HTML5 form-validation allow emails without a dot?
...Because a@b is a valid email address (eg localhost is a valid domain). See http://en.wikipedia.org/wiki/Email_address#Examples
Also, keep in mind that you should always do the input validation in server. The client side validation should be only for giving feedback to the user and not be relied on,...