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The developers of this app have not set up this app properly for Facebook Login?
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@PratikshaRaikundaliya But the web page notify me that I do not have a valid contact email specified. How should I solve this problem?
– JackieLam
Feb 25 '14 at 3:24
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Order of event handler execution
...ey are executed in the order they are registered. However, this is an implementation detail, and I would not rely on this behavior staying the same in future versions, since it is not required by specifications.
share
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Split data frame string column into multiple columns
...that function, it returns nothing. What could be the problem. my type is something like "test...score"
– user3841581
Mar 14 '16 at 8:15
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Is it possible to disable the network in iOS Simulator?
I am trying to debug some inconsistent behaviour I am seeing in an application that gets its primary data from the internet. I don't see the issues in the simulator, just on the device, so I'd like to reproduce the network and connectivity environment in the simulator.
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Set up a scheduled job?
...One solution that I have employed is to do this:
1) Create a custom management command, e.g.
python manage.py my_cool_command
2) Use cron (on Linux) or at (on Windows) to run my command at the required times.
This is a simple solution that doesn't require installing a heavy AMQP stack. However...
Counting null and non-null values in a single query
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@shannon I agree, COUNT(a) is a useful comment to add, but this does throw a warning/error depending on your stack and might warrant a comment in code. I would prefer the SUM method.
– Richard
Mar 29 '16 at 9:41
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Eclipse IDE: How to zoom in on text?
I want the same behaviour Firefox has, when you use the scroll button in the mouse to zoom in and out on the current view.
Is there something like it for eclipse?
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Why is spawning threads in Java EE container discouraged?
One of the first things I've learned about Java EE development is that I shouldn't spawn my own threads inside a Java EE container. But when I come to think about it, I don't know the reason.
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Run a single migration file
...out IRB) which relies on the fact that require returns an array of class names:
script/runner 'require("db/migrate/20090408054532_add_foos.rb").first.constantize.up'
Note that if you do this, it probably won't update the schema_migrations table, but it seems like that's what you want anyway.
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What exactly can cause an “HIERARCHY_REQUEST_ERR: DOM Exception 3”-Error?
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It means you've tried to insert a DOM node into a place in the DOM tree where it cannot go. The most common place I see this is on Safari which doesn't allow the following:
document.appendChild(document.createElement('div'));
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