Can't load arbitrary object schemas

[fishclaws]

I'm dealing with an existing data-structure that looks like this:
{
'x': {#Schema A}
'y': {#Schema A}
...
}
(where 'x' and 'y' are variable strings)
and I have no way to represent, load or save this data from the Mongo DB with this ORM.
I can't use ': any' or ': Object' or ': {[key: string]: T}'
I know that no collection types are supported except Arrays but this usecase for Dictionaries seems fairly important for a Mongo ORM to handle.
Thanks!

[meirgottlieb]

You can use a PropertyConverter to handle this situation. Take a look at the tests for PropertyConverter for an example of implementing a PropertyConvert and look at documentation on the Converter decorator for information on how to apply them.

Also, make sure you are using the latest version, 1.6.2. I noticed a bug where areEqual in the PropertyConverter was not being called by the mapping. This is fixed in 1.6.2.

Let me know if you have any questions.

[fishclaws]

I'm not sure how to annotate my class to use the PropertyConverter
For example:
items: {
'unknownString': {'a':0},
'unknownString2':{'a':0},
}
how would the annotations look like?

@Embeddable
class A {
  @Field()
  public a: number;
}

@Entity
@Collection('Example')
class Example {
  @Field()
  @ElementType(A)
  public items: Array<..?..>;
}

[meirgottlieb]

Let's say you have a converter called AnyConverter like in my example, you would then annotate your class as follows:

@Entity
class Example {
  
  @Converter(AnyConverter)
  public items: any;
}

You can read more about how to use a converter here.