I want to use slugs (String) instead of ObjectID for some of my REST-exposed objects in Loopback
What the docs says about model ids:
By default, if no ID properties are defined and the idInjection of the model options is false, LDL automatically adds an id property to the model as follows:
id: {type: Number, generated: true, id: true}
I thought that I would just need to specify String as the type, and generated: false to avoid that loopback generates ObjectId instead.
id: { type: String, generated: false, id: true },
--> This did not work at all
In the code, mongodb.js I see that whatever the name of my id is, it is wrapped with an ObjectID function, which explains the loss of String value.
Side note : also, the generated property, is never used in mongodb connector code, what it is for?
My solution so far
Add a custom property (objectId, because I am not sure what generated is for) of my schema definition, which becomes :
id: {
type: String,
objectId: false,
id: true
},
I then use this property as following, in [email protected]:155 :
var isObjectId = self.getDataSource(model)
.getModelDefinition(model)
.properties[idName]
.objectId;
if (idValue === null) {
delete data[idName]; // Allow MongoDB to generate the id
} else {
var oid = isObjectId ? ObjectID(idValue) : idValue; // Is it an Object ID?
data._id = oid; // Set it to _id
delete data[idName];
}
I updated save() method the same way, and now I can insert/modify objects with slug, and access them from the REST interface as well.
Question
I'm not sure this is right, will it break something?
Also, I don't really like the idea of modifying dependencies, so I would prefer to use an official method, or write a pull request if you guys at StrongLoop think you can make use of this.
