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Rails auto-assigning id that already exists
...s that it is only used once.
The simplest solution is to set the sequence for your company.id column to the highest value in the table with a query like this:
SELECT setval('company_id_seq', (SELECT max(id) FROM company));
I am guessing at your sequence name "company_id_seq", table name "company...
how to exclude null values in array_agg like in string_agg using postgres?
...ere is a null value, that null is also taken as a name in the aggregate. For example :
8 Answers
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Android: remove notification from notification bar
...he Notification Tray remains visible. Is there any way to hide it as well? For example i have two actions associated with the Notification: cancel and done. When either of these actions are taken i am removing the notification. But doing this it only removes the notification but the notification tra...
Rest with Express.js nested router
...
Thanks for the answer. The router you uses here is more explicitly nested than the one shared by Jordonias. But does it works the same underneath the hood? I would like to grant you the bounty for comprehensiveness but I cannot do i...
How do I update the notification text for a foreground service in Android?
I have a foreground service setup in Android. I would like to update the notification text. I am creating the service as shown below.
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SQL Server : Columns to Rows
Looking for elegant (or any) solution to convert columns to rows.
6 Answers
6
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Copying files from host to Docker container
I am trying to build a backup and restore solution for the Docker containers that we work with.
41 Answers
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Difference between one-to-many and many-to-one relationship
...a. It depends on which side of the relationship the entity is present on.
For example, if one department can employ for several employees then, department to employee is a one to many relationship (1 department employs many employees), while employee to department relationship is many to one (many ...
How to dynamically update a ListView on Android [closed]
... ListView Adapter classes come with a Filter object that can be used to perform the filtering automagically. We just need to pipe the input from the EditText into the Filter. Turns out that is pretty easy. To run a quick test, add this line to your onCreate() call
adapter.getFilter().filter(s);
N...
Deserialize JSON with C#
...pt.Serialization.JavaScriptSerializer().Deserialize<Friends>(json);
foreach(var item in facebookFriends.data)
{
Console.WriteLine("id: {0}, name: {1}", item.id, item.name);
}
Produces:
id: 518523721, name: ftyft
id: 527032438, name: ftyftyf
id: 527572047, name: ftgft
id: 531141884, nam...