...
In most of cases the database source of models are SQL tables, there is also another option. You can set SQL views as a souce of the model data. In current version there is no particular API for this case, you can base on fact that hibernate treats SQL views as SQL tables. SQL views in most cases are read only so you have to remember about it when you want to use it.
Example
Lets consider an example when we need to implement feature: On the list of categories user want to see average price of all products in category.
Model
We will start with qcadoo model:
| Code Block | ||
|---|---|---|
| ||
<?xml version="1.0" encoding="UTF-8"?>
<model name="productCategoryListItem"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://schema.qcadoo.org/model"
xsi:schemaLocation="http://schema.qcadoo.org/model http://schema.qcadoo.org/model.xsd"
activable="false" deletable="false" auditable="false" insertable="false" updatable="false">
<fields>
<string name="name" unique="true" required="true" />
<belongsTo name="productGroup" model="productGroup" required="true"/>
<decimal name="productsAvgPrice" />
<hasMany name="products" joinField="productCategory" model="product" cascade="nullify" />
</fields>
<hooks />
</model> |