Is it possible to add a before hook to an association table?

[ghost]

I have defined an hasMany relationship and it works as I would assume it does but for some reason the beforeCreate hook on the association table is not called.

[ghost]

I tried to explore the source and was having difficulty getting into the mind set of the code. It seems to me @ first glance thought that it is not possible to define hooks an association tables.

Is the association table though a "Model" object though? If not would it make sense to make it a Model object? That way you can have more control over the handling of data stored on the edge.

[dresende]

What exactly do you want to do? What do you mean by association table, the 3rd table or the table of the other model?

[ghost]

I want to add validations to the 3rd tables data ( i believe the term is
join table, the one that sits between the two main entities )

I took some time to go through the source and it didnt seem that the 3rd
table was a logical extension of an "entity" but a hard coded between two
entities. ( I don`t know if this comment make sense to you )

[dresende]

Yes, I understand. I'll see if I can force a new before* hook.

[dresende]

Usage:

Person.hasMany("pets", Pet, {
    born : Date
}, {
    hooks : {
        beforeSave : function (props, next) {
            // props is { born: ... } or empty {}
            // `this` is a reference to the pet being associated
            return next();
        }
    }
});

If no extra properties defined, hook will not pass props at all.

Person.hasMany("pets", Pet, {}, {
    hooks : {
        beforeSave : function (next) {
            return next(new Error('no associations allowed')); // error example
        }
    }
});

[dresende]

Please test by installing from git:

npm install dresende/node-orm2