Unique field for unique id

Asked Apr 13 '18 at 01:41

Active Apr 13 '18 at 01:54

Viewed 32 times

Houston, we have a problem.

I'm developing a API Rest using mongoose and i need the mongoose don't save POST request's when the unique field value is in there.

Example:

{'_id': '1234', 'fieldUnique': 'fieldTeste'} // Allowed.
{'_id': '1234', 'fieldUnique': 'fieldTeste1'} // Allowed.

{'_id': '5678', 'fieldUnique': 'fieldTeste'} // Allowed.
{'_id': '5678', 'fieldUnique': 'fieldTeste1'}// Allowed.

// Imagine mongoose printing: Are you crazy? This exists.
{'_id': '1234', 'fieldUnique': 'fieldTeste'} 

//Imagine Again: I will not repeate. This exists! Get out here.
{'_id':'1234', 'fieldUnique':'fieldTeste1'}

Houston. Can you help me with this little problem showing how to make it in mongoose schema or showing the logic in the request?

From Brazil, with love. Hugo.

edited Apr 13 '18 at 01:54

asked Apr 13 '18 at 01:41

Junior Hugo

I'm not sure what you're asking as `_id` must always be unique. – JohnnyHK Apr 13 '18 at 01:55
No, i want the field "fieldUnique" must be unique for this _id – Junior Hugo Apr 13 '18 at 01:57
That doesn't make any sense as you can only have one document with a given `_id`. – JohnnyHK Apr 13 '18 at 02:00
This is just one example. My real field in my project is called 'TAG' when ''TAG'' must be unique for my another field called ''prop'' in my collection. Could i make this logic in MongoDB? – Junior Hugo Apr 13 '18 at 02:04
It's like: If TAG exists in prop, i don't save the document. – Junior Hugo Apr 13 '18 at 02:07
Awesome, i will see this post. Thank you Johnny! – Junior Hugo Apr 13 '18 at 02:08

Unique field for unique id

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