Adding field hooks to existing model

[zuhair-naqvi]

The field hook example shows creation of a new model using mongoose.schema, how do I add field hooks to existing models?

Eg. If I want to format the a timestamp into 'x hours ago' string. Please see pseudo-code for what I'm trying to achieve:

var User = mongoose.model('User')
User._created.hooks = {
  post:  [
    (next, date) => next(moment(date).fromNow())
  ]
}
var schema = getSchema([User])

I'm sure there's a way to do this, just struggling to get my head around hooks docs!

Thanks in advance :)

[tothandras]

@zuhair-naqvi It's not so easy. If it's an existing model you need to assign the hooks to User.schema.paths._created.options.hooks.

[zuhair-naqvi]

@tothandras that worked, thanks heaps! The next thing I'm trying to figure out is how to return the formatted date which is a string as a virtual property something like User.createdAgo so I can return this in the query result but not have it persisted (I believe if I just add it to User.schema.paths the next time I save the document it will be written too?

[tothandras]

@zuhair-naqvi Virtual fields are not supported currently (#25), but you can try to modify the paths, it might work. I can look into virtual fields today, how can we support it.

[zuhair-naqvi]

I think #64 will address this use case too!

[sibelius]

@zuhair-naqvi have you managed to fix this issue?