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How to delete an object by id with entity framework
...inactive for 2 years
ctx.Users.Where(x => x.LastLoginDate < DateTime.Now.AddYears(-2))
.Delete();
It is also useful for bulk deletes.
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Sort Go map values by keys
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Ah, okay. Thank you for teaching me. Now, it is printing all even then all odd. play.golang.org/p/K2y3m4Zzqd How can I get it to alternate so that it is in order?
– gramme.ninja
Apr 28 '14 at 2:20
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How to 'bulk update' with Django?
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Update:
Django 2.2 version now has a bulk_update.
Old answer:
Refer to the following django documentation section
Updating multiple objects at once
In short you should be able to use:
ModelClass.objects.filter(name='bar').update(name="foo")
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Copy rows from one Datatable to another DataTable?
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Supported in: 4, 3.5 SP1, you can now just call a method on the object.
DataTable dataTable2 = dataTable1.Copy()
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Do you (really) write exception safe code? [closed]
...sure your code is exception safe. But then, you strive for it, using well-known patterns, and avoiding well-known anti-patterns.
Do you know and/or actually use alternatives that work?
There are no viable alternatives in C++ (i.e. you'll need to revert back to C and avoid C++ libraries, as well as...
Anonymous recursive PHP functions
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Mind Blown! Thanks a lot! How did I not know about this till now? The amount of application I have for recursive anonymous functions is huge. Now I can finally loop through nested structures in layouts without having to explicitly define a method and keep all my lay...
Error 5 : Access Denied when starting windows service
... is that, most services are run as LOCAL SERVICE or LOCAL SYSTEM accounts. Now when you run C:/my-admin-dir/service.exe with those accounts but they are not allowed to execute anything in that directory, you will get error 5. So locate the executable of the service, RMB the directory -> Propertie...
Write to file, but overwrite it if it exists
...he file if it doesn't exist, but overwrites it if it already exists. Right now this script just appends.
8 Answers
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Detect enter press in JTextField
...d textField = new JTextField(10);
textField.addActionListener( action );
Now the event is fired when the Enter key is used.
Also, an added benefit is that you can share the listener with a button even if you don't want to make the button a default button.
JButton button = new JButton("Do Someth...
setImmediate vs. nextTick
...rying to break up a long running, CPU-bound job using recursion, you would now want to use setImmediate rather than process.nextTick to queue the next iteration as otherwise any I/O event callbacks wouldn't get the chance to run between iterations.
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