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Creating a Component from a Component Template

Selecting a Template

When you come to create a new component you should see one of the dialog boxes shown in Figure 1 or Figure 2.

Figure 1 - From File - New in the pulldown menu


Figure 2 - From the Open Form window


In order to select which component template to use you will then be presented with the Browse Component Template window as shown in Figure 3.

Figure 3 - Browse Component Template window


The Object Binding screen

By confirming to use a component template you will be presented with the Object Binding screen as shown in Figure 4.

Figure 4 - Bind Entities window


The top left-hand area shows the source entities that have been defined in the component template. The top right is the area where you define the target entities required within the component. As each source entity is selected the bottom left area will show the source fields that have been defined for that entity, with the bottom right used to specify the target fields.

The following icons are used in front of the source entity and fields names:

generic_entity_symbol.jpg Generic Entity - a target entity must be defined.
nongeneric_entity_symbol.jpg Non Generic Entity - the source entity is the target entity.
generic_field_symbol.jpg Generic Field - a target field must be defined.
nongeneric_field_symbol.jpg Non Generic Field - the source field is the target field.

Note that the detail_button.gif button can be used to browse through the repository in order to select the model, entity and field names.

Once you have specified targets for all the generic objects you simply press the OK button and the component will be built for you, with all the source objects replaced by their specified targets. The new component will include all trigger code defined within the template, plus any defined within the application model for the target objects. All that is left is to resize the objects (if necessary), insert any missing objects, and the finished component is ready for compiling and testing.

Proc Code

If any of the proc code contains references to generic entities or generic fields you will still see the generic names, as in the following example:

clear/e "<MAIN>"
getlistitems/occ $params$, "<MAIN>"
retrieve/x "<MAIN>"

if (!$dbocc(<MAIN>))
   putmess "primary key: %%$params$"
   message $text(M_90007)  ; no entry found


These references will not be resolved until the component is compiled, so to see the actual object names that will be used at run time you must either refer to the compiled listing or the Bound Objects screen (which can be accessed from the pulldown menu).

When you wish to view or edit the trigger code within the component you will go through the Edit Component Trigger dialog as shown in Figure 5.

Figure 5 - Edit Component Trigger window


The following icons in front of each trigger name will indicate if the code is inherited or not:

inherited_from_template.jpg Inherited from the Component Template.
not_inherited_from_template.jpg Not inherited from the Component Template.
inherited_from_model.jpg Inherited from the application model.
not_inherited_from_model.jpg Not inherited from the application model.

Losing/Regaining Trigger Inheritance

To lose any inheritance simply modify the code within the trigger. To reinstate the inheritance simply double-click on the trigger name in the Edit Component Trigger window. This will cause the Restore Trigger Contents window to be displayed, as shown in Figure 6.

Figure 6 - Restore Trigger Contents window


Press the OK button to restore the inheritance of this trigger.

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