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Creating Multifield Indexes in Mongoose / MongoDB
...ommand can be used to create compound index for nested json:
db.ACCOUNT_collection.createIndex({"account.id":1,"account.customerId":1},{unique:1})
Mongo json structure is like :
{"_id":"648738"
"account": {
"id": "123",
"customerId": 7879,
"name": "test"
..
..
}
}
I hav...
Where is Vagrant saving changes to the VM?
...omething like "D:\VHDs\VBox\" and there I found my vagrant test vm: "test01_1347456065". It was called test01, so I guess vagrant adds the numbers to keep things unique.
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Limits of Nat type in Shapeless
...a> Nat(3)
res10: shapeless.Succ[shapeless.Succ[shapeless.Succ[shapeless._0]]] = Succ()
So to represent the number 1000000, you would have a type that is nested 1000000 levels deep, which would definitely blow up the scala compiler. The current limit seems to be about 400 from experimentation, b...
HTTP Error 503. The service is unavailable. App pool stops on accessing website
... answered Oct 25 '16 at 8:39
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mysql error 1364 Field doesn't have a default values
...e makes MySQL more prone to data quality errors, so removing it is not a really good advice.
– Shadow
May 18 '17 at 8:59
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How to define a circle shape in an Android XML drawable file?
...veral examples in the ApiDemos project:
/ApiDemos/res/drawable/
black_box.xml
shape_5.xml
etc
It will look something like this for a circle with a gradient fill:
<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android" android:shape...
Upgrade Node.js to the latest version on Mac OS
...
Because you advice to use sudo.
– OZ_
Nov 16 '15 at 20:53
2
This works, but: is ...
Are email addresses case sensitive?
...r: "you're unsafe to treat email-addresses as case-sensitive manner" Especially when checking for duplicates in user-databases, etc.
– Geert-Jan
Nov 16 '13 at 23:00
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What's a simple way to get a text input popup dialog box on an iPhone
... }];
[alert addTextFieldWithConfigurationHandler:^(UITextField * _Nonnull textField) {
// A block for configuring the text field prior to displaying the alert
}];
[alert addAction:defaultAction];
[alert addAction:cancelAction];
[self presentViewController:alert animated:YES completion:...
How to make a phone call using intent in Android?
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You can use Intent.ACTION_DIAL instead of Intent.ACTION_CALL. This shows the dialer with the number already entered, but allows the user to decide whether to actually make the call or not. ACTION_DIAL does not require the CALL_PHONE permission.
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