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Paperclip::Errors::MissingRequiredValidatorError with Rails 4
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Starting with Paperclip version 4.0, all attachments are required to include a content_type validation, a file_name validation, or to explicitly state that they're not going to have either.
Paperclip raises Paperclip::Errors::MissingRequiredValidatorError erro...
Difference Between ViewData and TempData?
I know what ViewData is and use it all the time, but in ASP.NET Preview 5 they introduced something new called TempData.
6...
Best practices for reducing Garbage Collector activity in Javascript
I have a fairly complex Javascript app, which has a main loop that is called 60 times per second. There seems to be a lot of garbage collection going on (based on the 'sawtooth' output from the Memory timeline in the Chrome dev tools) - and this often impacts the performance of the application.
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ElasticSearch: Unassigned Shards, how to fix?
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By default, Elasticsearch will re-assign shards to nodes dynamically. However, if you've disabled shard allocation (perhaps you did a rolling restart and forgot to re-enable it), you can re-enable shard allocation.
# v0.90.x and earlier
curl -XPUT 'localhost:9200/_settings' -d '{
"in...
How to position a DIV in a specific coordinates?
... edited Apr 15 '16 at 14:16
allegutta
5,39777 gold badges3131 silver badges4949 bronze badges
answered Jul 23 '11 at 20:01
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Convert Linq Query Result to Dictionary
... I just made my check. Sadly, while getting the TableObj, it fetches all the objects from the db so I end up getting the trafic hit. I also checked the queries that the second way I posted (and wanted to avoid) and they only get the necessary items. Sure it does 2 queries so the server itself...
Is there a shortcut on Android Studio to convert a text to uppercase?
...triolix not natively, but there are plugins that can achieve this. I personally have used this one and it worked great. It works better if you configure keyboard shortcuts for it IMO
– aProperFox
Nov 6 '19 at 18:49
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Handling Touch Event in UILabel and hooking it up to an IBAction
...= YES;
UITapGestureRecognizer *tapGesture =
[[UITapGestureRecognizer alloc] initWithTarget:self
action:@selector(labelTap)];
[label addGestureRecognizer:tapGesture];
The trick is to enable user interaction.
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Locate the nginx.conf file my nginx is actually using
...g on a client's server where there are two different versions of nginx installed. I think one of them was installed with the brew package manager (its an osx box) and the other seems to have been compiled and installed with the nginx packaged Makefile. I searched for all of the nginx.conf files on t...
ContextLoaderListener or not?
... the servlet's context, that stick with that, it's simpler.
Yes, the generally-encouraged pattern is to keep non-web stuff in the webapp-level context, but it's nothing more than a weak convention.
The only compelling reasons to use the webapp-level context are:
If you have multiple DispatcherSe...