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E11000 duplicate key error index in mongodb mongoose
... I am explaining to a 5-year-old , so everyone can understand .
I have an app.I want people to register with their email,password and phone number .
In my MongoDB database , I want to identify people uniquely based on both their phone numbers and email - so this means that both the phone number an...
How to keep onItemSelected from firing off on a newly instantiated Spinner?
... find a suitable, straightforward place to do this as the layout seems to happen at some point after onResume() and onPostResume(), so all of the normal hooks have completed by the time the layout happens.
– Dan Dyer
Dec 18 '10 at 13:05
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MySQL “incorrect string value” error when save unicode string in Django
... answer needs way, way, way more upvotes. Thanks! The real problem is your application may run fine for years until someone tries to enter a 4byte character.
– Michael Bylstra
Apr 30 '14 at 3:44
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Cannot insert explicit value for identity column in table 'table' when IDENTITY_INSERT is set to OFF
...is:
SET IDENTITY_INSERT student ON
If you getting this error on your web application or you using entity framework then first run this query on SQL server and Update your entity model (.edmx file) and build your project and this error will be resolved
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Objective-C: Property / instance variable in category
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fixed link for Associated Objects: developer.apple.com/library/ios/#documentation/cocoa/Conceptual/…
– MechEthan
Jan 4 '12 at 20:22
5
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Elastic search, multiple indexes vs one index and types for different data sets?
I have an application developed using the MVC pattern and I would like to index now multiple models of it, this means each model has a different data structure.
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How to gracefully handle the SIGKILL signal in Java
... another watcher program watch for your main program to go away or use a wrapper script. You could do with this with a shell script that polled the ps command looking for your program in the list and act accordingly when it disappeared.
#!/usr/bin/env bash
java TestShutdownHook
wait
# notify your ...
How to evaluate a math expression given in string form?
.... The executed JavaScript can access all Java classes and thus hijack your application without limit.
– Boann
Sep 21 '15 at 11:08
4
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In STL maps, is it better to use map::insert than []?
...y << " with value " << value << endl;
}
For most of my apps, I usually don't care if I'm creating or replacing, so I use the easier to read map[key] = value.
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Text Progress Bar in the Console [closed]
I wrote a simple console app to upload and download files from an FTP server using the ftplib.
31 Answers
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