@rezeus/model v1.0.10

Model

Generic, ActiveRecord-like base model class.

Hooks

Hooks will be called in this order;

1. beforeCreate / beforeUpdate
2. beforeSave
3. afterSave
4. afterCreate / afterUpdate

Note: beforeUpdate and afterUpdate hooks MUST be manually invoked by the extending class if the static method is going to be used to update the instance by it's ID (i.e. updateById). This class is the one which implements the data store operations (e.g. MemoryModel class from examples) - for other extending classes (e.g. User, Post, Tag classes from examples). Other hooks are free from this requirement.

Recipes

Virtual Fields

TR virtual field lar setField ve getField metodları kullanılarak yapılabilir. örneğin bir kullanıcı kaydının firstName ve lastName özellikleri varsa name virtual field i eklenebilir (many-classes örnek dosyasındaki User modelinde yapıldığı gibi) - ancak burada şöyle bir durum var; getter'ı private fields'tan (this[PRIV].fields) veri okumuyor, eğer okunması gereken bir durum varsa (yani getter'ın return değeri on-the-fly hesaplanmıyorsa) setField'a field name'i gönderirken '_' ile prefixle (e.g. this.setField('_not_presisted_field_name', 13);)

FAQ

Below you can find error messages and their explanations.

Cannot create a new Model instance.

Since the Model class is an "abstract" class (abstract in real OOP languages) one cannot instantiate a new Model instance using new keyword, e.g.;

const model = new Model(); // throws this error

Instead of creating a new instance this way (i.e. using new keyword) use .create() static method of a class that extends the Model class (extending class), e.g.;

// Let's say extending class name is 'User'
const user = User.create({ name: 'Jahn', surname: 'Doe' });

then one can set the instance's properties and then save it, like so;

// ...continuing above
user.name = 'John';
await user.save();