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Intellij idea cannot resolve anything in maven
...
In IntelliJ 12.1.4 I went through Settings --> Maven --> Importing and made sure the following was selected:
Import Maven projects automatically
Create IDEA modules for aggregator projects
Keep source...
Exclude build dir...
Use Maven output...
Generated souces f...
Why does Eclipse complain about @Override on interface methods?
...at the "source compatibility" is set to 1.6 or greater:
Open the Window > Preferences dialog
Browse to Java > Compiler.
There, set the "Compiler compliance level" to 1.6.
Remember that Eclipse can override these global settings for a specific project, so check those too.
Update:
The ...
How to split a string into an array of characters in Python?
...
>>> s = "foobar"
>>> list(s)
['f', 'o', 'o', 'b', 'a', 'r']
You need list
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...
Is there an Eclipse line-width marker?
...s - IIRC it moves around for different operating systems) then:
General -> Editors -> Text Editors -> Show Print Margin
Tick this and it should show the line.
As a quick way of finding this, use the search filter in the top and filter on "margin".
Notes from the comments - unverified b...
Rails: Missing host to link to! Please provide :host parameter or set default_url_options[:host]
...t every environment:
config.action_mailer.default_url_options = { :host => "yourhost" }
That way, it can work in all environments and could be different from environment to environment. For example:
development.rb
config.action_mailer.default_url_options = { :host => "dev.yourhost.com" }
...
Convert a list to a dictionary in Python
...e (2 in this case)):
{'bi':2,'double':2,'duo':2,'two':2}
you can use:
>>> dict((k,2) for k in a)
{'double': 2, 'bi': 2, 'two': 2, 'duo': 2}
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Extract substring using regexp in plain bash
...ST)
$ while read a b time x; do [[ $b == - ]] && echo $time; done < file.txt
another solution with bash regex :
$ [[ "US/Central - 10:26 PM (CST)" =~ -[[:space:]]*([0-9]{2}:[0-9]{2}) ]] &&
echo ${BASH_REMATCH[1]}
another solution using grep and look-around advanced regex ...
Access restriction: The type 'Application' is not API (restriction on required library rt.jar)
...ve Eclipse Mars (4.5.0) and there are no access rules in Java Build Path -> Libraries. FWIW there's a bigger hammer (you can turn them all off) in Preferences -> Java -> Compiler -> Errors / Warnings -> Deprecated and Restricted API.
– Jonathan Ross
...
How do I query using fields inside the new PostgreSQL JSON datatype?
...: "Zaphod", "occupation": "Galactic President"} ]'
) AS elem
WHERE elem->>'name' = 'Toby';
Advanced example:
Query combinations with nested array of records in JSON datatype
For bigger tables you may want to add an expression index to increase performance:
Index for finding an elemen...
How to get name of calling function/method in PHP? [duplicate]
...unction GetCallingMethodName(){
$e = new Exception();
$trace = $e->getTrace();
//position 0 would be the line that called this function so we ignore it
$last_call = $trace[1];
print_r($last_call);
}
function firstCall($a, $b){
theCall($a, $b);
}
function theCall($a, $b){...