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How to get the original value of an attribute in Rails
...previous value.
For rails 5.1+
Copied from Lucas Andrade's answer below: https://stackoverflow.com/a/50973808/9359123
Appending _was is deprecated in rails 5.1, now you should append _before_last_save
Something like:
before_save object
do_something_with object.name_before_last_save
end
W...
How to clear gradle cache?
...nger works
android gradle plugin now utilizes gradle cache feature
REF: https://guides.gradle.org/using-build-cache/
TO CLEAR CACHE
Clean the cache directory to avoid any hits from previous builds
rm -rf $GRADLE_HOME/caches/build-cache-*
REF: https://guides.gradle.org/using-build-...
Paperclip::Errors::MissingRequiredValidatorError with Rails 4
...)
You might also have to deal with the spoofing validation explained here https://stackoverflow.com/a/23846121
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What is context in _.each(list, iterator, [context])?
..., 'World!'], function(word){
console.log(word);
});
<script src="https://cdnjs.cloudflare.com/ajax/libs/underscore.js/1.8.3/underscore-min.js"></script>
Here's simple example that could use _.each:
function basket() {
this.items = [];
this.addItem = function(...
How to set cookie in node js using express framework?
...
Set a cookie:
res.cookie('cookie', 'monster')
https://expressjs.com/en/4x/api.html#res.cookie
Read a cookie:
(using cookie-parser middleware)
req.cookies['cookie']
https://expressjs.com/en/4x/api.html#req.cookies
...
Undo a Git commit after push using reverse patch?
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Sounds like you want to use git-revert.
https://www.kernel.org/pub/software/scm/git/docs/git-revert.html
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Decompile .smali files on an APK [duplicate]
...rate working code, but it's decent enough to be able to read it.
dex2jar: https://github.com/pxb1988/dex2jar
jd-gui: http://jd.benow.ca/
Edit: I knew there was somewhere here in SO a question with very similar answers... decompiling DEX into Java sourcecode
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How do you specify the date format used when JAXB marshals xsd:dateTime?
...
https://www.baeldung.com/jaxb
public class DateAdapter extends XmlAdapter<String, Date> {
private static final ThreadLocal<DateFormat> dateFormat
= new ThreadLocal<DateFormat>() {
@Over...
Using psql how do I list extensions installed in a database?
... = 'pg_catalog.pg_extension'::pg_catalog.regclass
ORDER BY 1;
Thanks to https://blog.dbi-services.com/listing-the-extensions-available-in-postgresql/
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How to change the map center in Leaflet.js
...ter map to a new point in polyline at every second. Check the code :
GOOD: https://jsfiddle.net/nstudor/xcmdwfjk/
mymap.setView(point, 11, { animation: true });
BAD: https://jsfiddle.net/nstudor/Lgahv905/
mymap.panTo(point);
mymap.setZoom(11);
...