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ProjectModel

This class represents a global project of your Scheduler - a central place for all data.

It holds and links the stores usually used by Scheduler:

The project uses a calculation engine to normalize dates and durations. It is also responsible for handling references between models, for example to link an event via an assignment to a resource. These operations are asynchronous, a fact that is hidden when working in the Scheduler UI but which you must know about when performing more advanced operations on the data level.

When there is a change to data that requires something else to be recalculated, the project schedules a calculation (a commit) which happens moments later. It is also possible to trigger these calculations directly. This snippet illustrate the process:

  1. Something changes which requires the project to recalculate, for example adding a new task:
const [event] = project.eventStore.add({ startDate, endDate });
  1. A recalculation is scheduled, thus:
event.duration; // <- Not yet calculated
  1. Calculate now instead of waiting for the scheduled calculation
await project.commitAsync();

event.duration; // <- Now available

Using inline data

The project provides settable property inlineData that can be used to get data from all its stores at once and to set this data as well. Populating the stores this way can be useful if you cannot or you do not want to use CrudManager for server requests but you pull the data by other means and have it ready outside of ProjectModel. Also, the data from all stores is available in a single assignment statement.

Getting data

const data = scheduler.project.inlineData;

// use the data in your application

Setting data

const data = // your function to pull server data

scheduler.project.inlineData = data;

Monitoring data changes

While it is possible to listen for data changes on the projects individual stores, it is sometimes more convenient to have a centralized place to handle all data changes. By listening for the change event your code gets notified when data in any of the stores changes. Useful for example to keep an external data model up to date:

const scheduler = new Scheduler({
    project: {
        listeners : {
            change({ store, action, records }) {
                const { $name } = store.constructor;

if (action === 'add') { externalDataModel.add($name, records); }

if (action === 'remove') { externalDataModel.remove($name, records); } } } } });

Built-in StateTrackingManager

The project also has a built-in StateTrackingManager (STM for short), that handles undo/redo for the project stores (additional stores can also be added). You can enable it to track all project store changes:

// Turn on auto recording when you create your Scheduler:
const scheduler = new Scheduler({
   project : {
       stm : {
           autoRecord : true
       }
   }
});

// Undo a transaction project.stm.undo();

// Redo project.stm.redo();

Check out the undoredo demo to see it in action.

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Fields

Fields belong to a Model class and define the Model data structure
  • Start expanded or not (only valid for tree data)

  • This is a read-only field provided in server synchronization packets to specify which position the node takes in the parent's ordered children array. This index is set on load and gets updated on reordering nodes in tree. Sorting and filtering have no effect on it.

  • Deprecated:

    This field has been deprecated. Please read the guide to find out if your app needs to use the new isFullyLoaded field.

    This field is added to the class at runtime when the Store is configured with lazyLoad. The number specified should reflect the total amount of children of a parent node, including nested descendants.

Configs

Configs are options you supply in a configuration object when creating an instance of this class

Properties

Properties are getters/setters or publicly accessible variables on this class
  • isModelStm : Booleantrue
    READONLY
    static
    ADVANCED
    ModelStm
    Identifies an object as an instance of ModelStm class, or subclass thereof.
  • isProjectModel : Booleantrue
    READONLY
    static
    ADVANCED
    Identifies an object as an instance of ProjectModel class, or subclass thereof.
  • isProjectModelCommon : Booleantrue
    READONLY
    static
    ADVANCED
    ProjectModelCommon
    Identifies an object as an instance of ProjectModelCommon class, or subclass thereof.
  • isProjectModelMixin : Booleantrue
    READONLY
    static
    ADVANCED
    ProjectModelMixin
    Identifies an object as an instance of ProjectModelMixin class, or subclass thereof.
  • Identifies an object as an instance of ProjectModelTimeZoneMixin class, or subclass thereof.
  • isTreeNode : Booleantrue
    READONLY
    static
    ADVANCED
    Model
    Identifies an object as an instance of TreeNode class, or subclass thereof.
  • properties : Object
    internal
    static
    Model

    A class property getter for the default values of internal properties for this class.

  • allFields : DataField[]
    READONLY
    static
    Model

    An array containing all the defined fields for this Model class. This will include all superclass's defined fields.

  • fieldMap : Object<String, DataField>
    READONLY
    static
    Model

    An object containing all the defined fields for this Model class. This will include all superclass's defined fields through its prototype chain. So be aware that Object.keys and Object.entries will only access this class's defined fields.

  • The data source for the id field which provides the ID of instances of this Model.

  • State tracking manager instance the project relies on

    Has a corresponding stm config.

  • emptyArray : Array
    internal
    READONLY
    Model

    An empty array that can be used as a default value.

  • emptyObject : Object
    internal
    READONLY
    Model

    An empty object that can be used as a default value.

  • isModel : Booleantrue
    READONLY
    ADVANCED
    Model
    Identifies an object as an instance of Model class, or subclass thereof.
  • isProjectModel : Booleantrue
    READONLY
    ADVANCED
    Identifies an object as an instance of ProjectModel class, or subclass thereof.
  • copyOf : Model
    READONLY
    Model

    For copied records, this property links to the original model instance from which it was copied.

  • True if this Model is currently batching its changes.

  • True if this models changes are currently being committed.

  • True if this model has any uncommitted changes.

  • isValid : Boolean
    READONLY
    Model

    Check if record has valid data. Default implementation returns true, override in your model to do actual validation.

  • Get a map of the modified fields in form of an object. The field´s dataSource is used as the property name in the returned object. The record's id is included unless its persist config is false.

  • Get a map of the modified data fields along with any alwaysWrite fields, in form of an object. The field´s dataSource is used as the property name in the returned object. Used internally by AjaxStore / CrudManager when sending updates.

  • persistableData : Object
    internal
    READONLY
    Model

    Returns data for allpersistable fields in form of an object, using dataSource if present.

  • rawModificationData : Object
    internal
    READONLY
    Model

    Returns a map of the modified persistable fields

  • Returns the string value for display purposes of an instance of this Model class. Needs to be overridden in subclasses.

  • When called on a group header row returns list of records in that group. Returns undefined otherwise.

  • Returns true for a group header record

  • Gets the records internalId. It is assigned during creation, guaranteed to be globally unique among models.

  • Returns true if the record is new and has not been persisted (and received a proper id).

  • Deprecated:

    6.3.0 This config will be removed when the eventsData, resourcesData etc. properties are removed in a future release.

    Whether to include legacy data properties in the JSON / inlineData output. The legacy data properties are the xxData (eventsData, resourcesData etc.) properties that are deprecated and will be removed in the future.

    Has a corresponding includeLegacyDataProperties config.

  • config : Object
    READONLY
    ADVANCED
    Model

    Returns a copy of the full configuration which was used to configure this object.

  • isConstructing : Boolean
    READONLY
    ADVANCED
    Model

    This property is set to true before the constructor returns.

  • isDestroying : Boolean
    READONLY
    ADVANCED
    Model

    This property is set to true on entry to the destroy method. It remains on the objects after returning from destroy(). If isDestroyed is true, this property will also be true, so there is no need to test for both (for example, comp.isDestroying || comp.isDestroyed).

  • Is this record linked to another record?

  • Get the original record this record is linked to.

  • Get the first store that this model is assigned to.

  • This yields true if this record is eligible for syncing with the server. It can yield false if the record is in the middle of a batched update, or if it is a tentative record yet to be confirmed as a new addition.

  • isRemoved : Boolean
    internal
    READONLY
    Model

    Returns true if this record is not part of any store.

  • Retrieve all children, excluding filtered out nodes (by traversing sub nodes)

  • Retrieve all children, including filtered out nodes (by traversing sub nodes)

  • Depth in the tree at which this node exists. First visual level of nodes are at level 0, their direct children at level 1 and so on.

  • Count all children (including sub-children) for a node (in its `firstStore´)

  • Get the first child of this node

  • indexPath : Number[]
    private
    READONLY
    Model

    Returns index path to this node. This is the index of each node in the node path starting from the topmost parent. (only relevant when its part of a tree store).

  • isLeaf : Boolean
    READONLY
    Model

    Is a leaf node in a tree structure?

  • Returns true for parent nodes with children loaded (there might still be no children)

  • Is a parent node in a tree structure?

  • isRoot : Boolean
    READONLY
    Model

    Returns true if this node is the root of the tree

  • lastChild : Model
    READONLY
    Model

    Get the last child of this node

  • Get the next sibling of this node

  • parent : Model
    READONLY
    Model

    This is a read-only property providing access to the parent node.

  • Get the previous sibling of this node

  • Returns count of all preceding sibling nodes (including their children).

  • Array of tree nodes without any filter applied. On first filter, will take order from sorted children, but is not thereafter kept in sorted order, so order should not be relied upon.

  • Count visible (expanded) children (including sub-children) for a node (in its firstStore)

  • Returns values of the persistable tree-defining fields: parentId, orderedParentIndex, and parentIndex or sparseIndex. parentIndex is omitted when sparseIndex is used.

Functions

Functions are methods available for calling on the class
  • onClassMixedIn( )
    internal
    static
    Model

    This optional class method is called when a class is mixed in using the mixin() method.

  • initClass( )
    static
    ADVANCED
    Model

    Registers this class type with its Factory

  • exposeRelations( )
    internal
    static
    Model

    Makes getters and setters for related records. Populates a Model#relation array with the relations, to allow it to be modified later when assigning stores.

  • Cancels current batch operation. Any changes during the batch are discarded.

  • Reverts changes in this back to their original values.

  • Called from insertChild to notify StateTrackingManager about children insertion. Provides it with all necessary context information collected in beforeInsertChild required to undo/redo the action.

  • Called from removeChild to notify StateTrackingManager about children removing. Provides it with all necessary context information collected in beforeRemoveChild required to undo/redo the action.

  • Called during creation to also turn any children into Models joined to the same stores as this model

  • initRelations( )
    private
    Model

    Initializes model relations. Called from store when adding a record.

  • clear( )
    private
    Model

    Removes all records from the rootNode

Events

Events are triggered for certain actions in this class and can be listened for to react to those actions in your code

Event handlers

Event handlers are callbacks called as a result of certain actions in this class

Source path

Scheduler/model/ProjectModel.js

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