Data field related to entity

Create data field related to an entity

Concept

Relational types aim to link entities between them using specific data field.

uppose you would like to manage Cars and you would like to select a Brand name in a list. To do so, you will have to create a field related to an entity Brand.

Suppose you would manage house construction in your application. Each house is made of several type of raw materials. But raw materials can not be defined as fixed value list. You would also liek to manage globally the list of raw materials to use. In this case, you will define a field "House raw materials" related to many Raw MateriaL.

In both case, a drop-down list will be added (multiple ou single).

You can define which field must be displayed in the drop-down list with keyword "using" (by default ID of target entity is displayed)

ExempleEnglish

create data field NameOfDataField related to TargetEntity ( using NameOfFieldInTargetEntity )

add data field NameOfDataField related to TargetEntity ( using NameOfFieldInTargetEntity )

ComplémentExample

create entity Brand

add field Brand Name

create entity Car

add field Identification Number

add field Brand related to Brand using Brand Name

ExempleFrench

créer (un) champ (de données) NomDuChampsDeDonnées relié à NomEntité (en utilisant NomChampEntite)

ajouter (un) champ (de données) NomDuChampsDeDonnées de type relié à NomEntité (en utilisant NomChampEntite)

ComplémentExample

créer entité Marque

ajouter le champ Nom

créer entité Voiture

ajouter le champ Référence

ajouter le champ Marque relié à Marque en utilisant Nom

RemarqueDelete data field related to an entity