Ticket #522 (closed Enhancement: fixed)

Opened 7 years ago

Last modified 6 years ago

Core API: fetch a DeepaMehtaObject's childs selectively

Reported by: jri Owned by: jri
Priority: Major Milestone: Release 4.2
Component: DeepaMehta Standard Distribution Version: 4.1.2
Keywords: Cc: dgf, Malte
Complexity: 3 Area: Application Framework / API
Module: deepamehta-core

Description

In conjunction with implementing a ViewmodelCustomizer? (see #505):

When a topicmap is fetched from the DB the developer might want fetch certain (or all) childs of the (or some) topics contained in the topicmap, e.g. fetching a Note's body text. By default no childs are fetched, only the topic's value (= Title in case of Note topics) is contained in the topicmap send to the client.

Objective of this ticket is equipping the DeepaMehtaObject? API with a fetchChild(typeUri) (and possibly fetchAllChilds()) method. So the developer of a ViewmodelCustomizer? can call it on the topic passed to the enrichViewProperties() hook (which possibly should be renamed enrichTopic then).

Change History

comment:1 Changed 7 years ago by jri

  • Status changed from new to accepted

comment:2 Changed 7 years ago by Jörg Richter

Core: extend DeepaMehtaObject? API (#522, #505).

The DeepaMehtaObject? base interface specifies a new method:

void loadChildTopics(String childTypeUri)

It loads the object's childs specified by its type URI.
If the childs are loaded already nothing is performed.
Can be used for both, "one" and "many"-valued childs.

This method is of interest for Viewmodel Customizer implementers (see #505).

See #522.

comment:3 Changed 7 years ago by Jörg Richter

Core: extend DeepaMehtaObject? API (#522, #505).

The DeepaMehtaObject? base interface specifies a new method:

void loadChildTopics(String childTypeUri)

It loads the object's childs specified by its type URI.
If the childs are loaded already nothing is performed.
Can be used for both, "one" and "many"-valued childs.

This method is of interest for Viewmodel Customizer implementers (see #505).

See #522.

comment:4 Changed 7 years ago by jri

  • Status changed from accepted to closed
  • Resolution set to fixed

comment:5 Changed 7 years ago by jri

  • Status changed from closed to reopened
  • Cc ziegi removed
  • Resolution fixed deleted

A parameter less form, which load *all* child topics (according to the type definition) should be added as well.

void loadChildTopics()

This need originates from the NotiZEN application.

comment:6 Changed 6 years ago by Jörg Richter

  • Status changed from reopened to closed
  • Resolution set to fixed

Core API: add loadChildTopics() method (#522).

The DeepaMehtaObject? base interface specifies a new method:

void loadChildTopics()

It loads all the object's child topics.

Close #522.

Note: See TracTickets for help on using tickets.