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Ruby on Rails Callback, what is difference between :before_save and :before_create?
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Using the RUN instruction in a Dockerfile with 'source' does not work
... Eh? If you source a script inside a shell that only exists for the command, it's not able to have a lasting effect on any future commands run, assuming that the sum total of its action is setting environment variables. So why would you use source at all, vs just bash /usr/local/bin/virtualen...
Android: Specify two different images for togglebutton using XML
...lay the first item in your selector that it matches, so the default should come last. Arrange the items in the following manner to ensure they will all be utilized:
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:state_checked="true" android:state_pr...
How can I select all elements without a given class in jQuery?
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If want to check two class use as .not(".completed, .current")
– Nishantha
Aug 5 '15 at 12:16
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Pull request without forking?
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GitHub has a good guide about that: help.github.com/articles/creating-a-pull-request
– Ryan Bigg
Jan 5 '15 at 3:29
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ModelState.AddModelError - How can I add an error that isn't for a property?
...fvm){...} to see if the fvm.prop1 and fvm.prop2 already exist in that combination; if so, I want to add an error to the modelstate, then return the whole view. I tried:
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Append values to query string
...things like parsing, url encoding, ...:
string longurl = "http://somesite.com/news.php?article=1&lang=en";
var uriBuilder = new UriBuilder(longurl);
var query = HttpUtility.ParseQueryString(uriBuilder.Query);
query["action"] = "login1";
query["attempts"] = "11";
uriBuilder.Query = query.ToStrin...
What is the difference between `after_create` and `after_save` and when to use which?
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Which characters are valid/invalid in a JSON key name?
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In Git, what is the difference between origin/master vs origin master?
...eed have a local copy of the remote master branch, why can't I work on and commit and add to it? Or maybe I can, but why is it detached?
– stu
Mar 28 '14 at 14:51
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