Behaviours for collections

Define and attach behaviours to collections.

Installation

meteor add zimme:collection-behaviours

Available behaviours

The behaviours are split into separate packages, which depend on this package.

• zimme:collection-softremovable

  This behaviour adds .softRemove() and .restore() to collections, which make it possible to mark documents as removed. It also tracks the time and user for the last soft remove and restore.

  https://atmospherejs.com/zimme/collection-softremovable

• zimme:collection-timestampable

  This behaviour timestamps documents on insert and update. It also tracks the user who made the last insert or update.

  https://atmospherejs.com/zimme/collection-timestampable

Usage

Define a behaviour

CollectionBehaviours.define('behaviourName', function(options) {
  var collection = this.collection;

  // Setup some default options for the behaviour
  var defaultOptions = {
    exampleOption: "I'm a default value"
  };

  // Make the behaviour configurable both globally and locally and uses the
  // defaults if not configured.
  options = _.defaults(options, this.options, defaultOptions);

  // Behaviour logic goes here
});

Attach behaviours

// Attach a behavour using the collection identifier
Meteor.users.attachBehaviour('timestampable');

// Attach a behaviour to a colleciton using CollectionBehaviours
CollectionBehaviours.attach(Meteor.users, 'timestampable');

// Attach multiple behaviours to a collection with default options
CollectionBehaviours.attach(Meteor.users, ['timestampable', 'softremovable']);

// Attach multiple behaviours to a collcetion with custom options
CollectionBehaviours.attach(Meteor.users, {
  timestampable: {
    createdAt: 'insertedAt',
  },
  softremovable: {
    removedBy: 'deletedBy',
  },
});

// Attach a behaviour to multiple collections
CollectionBehaviours.attach([Meteor.users, Posts], 'timestampable');

// Attach multiple behaviours to multiple collections
CollectionBehaviours.attach(
  [Meteor.users, Posts],
  ['timestampable', 'softremovable']
);

Configuration

// Configure behaviour globally i.e. set you own defaults
CollectionBehaviours.configure('behaviourName', {
  exampleOption: "I'm a global value"
});

// Attach behaviour with custom options
Meteor.users.attachBehaviour('behaviourName', {
  exampleOption: "I'm a local value"
});

// Attach behaviour with custom options, using CollectionBehaviours
CollectionBehaviours.attach(Meteor.users, 'behaviourName', {
  exampleOption: "I'm a local value"
});

API

CollectionBehaviours.define

Used to defined a new behaviour or overwrite an already defined behaviour.

CollectionBehaviours.define('behaviourName', behaviourFunciton, options);

• 'behaviourName': Required. The name of the behaviour.
• behaviourFunction: Required. A Function that takes options as an argument. This function is the behaviour.
• options: Optional. Object with the options for the behaviour.

Options

• replace: Optional. Set to true to replace a previously defined behaviour.

CollectionBehaviours.configure

Used to confgure behaviours globally.

// Configure single behaviour
ColectionBehaviours.configure('behavioursName', options);

// Configure multiple behaviours
CollectionBehaviours.configure({
  timestampable: {
    createdAt: 'insertedAt',
    updatedBy: 'modifiedBy'
  },
  softremovable: {
    removed: 'deleted'
  }
});

• 'behaviourName': Required.
  If set to a String, 'behaviourName', will configure the named behaviour.
  If set to an Object, where the keys are named behaviours and the values are
  the options for the behaviours, will configure those named behaviours.

• options: Optional if behaviourName is an Object.
  See specific behaviour for available options.

<CollectionIdentifier>.attachBehaviour

Used to attach behaviour(s) to the collection.

Meteor.users.attachBehaviour(behaviourNameOrFunction, options);

• behaviourNameOrFunction: Required.
  If set to a String, 'behaviourName', will attach the named behaviour.
  If set to a Function, will attach that function as an anonymous behaviour.
  If set to an Array of String/Function, will attach those named or
  anonymous behaviours.
  If set to an Object, where the keys are named behaviours and the values are
  the behaviours' options, will attach those named behaviours with the provided
  options.
• options: Optional. See specific behaviour for available options.

CollectionBehaviours.attach

Used to attach behaviour(s) to collection(s).

CollectionBehaviours.attach(ColletionIdentifier, behaviourNameOrFunction, options);

• CollectionIdentifier: Required. The collection or Array of collections
  you want to attach the behaviour(s) to.
• behaviourNameOrFunction: Required.
  If set to a String, 'behaviourName', will attach the named behaviour.
  If set to a Function, will attach that function as an anonymous behaviour.
  If set to an Array of String/Function, will attach those named or
  anonymous behaviours.
  If set to an Object, where the keys are named behaviours and the values are
  the behaviours' options, will attach those named behaviours with the provided
  options.
• options: Optional. See specific behaviour for available options.

Notes

• CollectionBehaviours.config is an alias for CollectionBehaviours.configure
• The inspiration for this package came from sewdn:collection-behaviours