ifRender Dynamic Rendering 1.11.1+
Both @View and @Edit support the ifRender attribute. Through an @ExprBool expression you can decide at runtime whether a column or form component is rendered — e.g., control field visibility based on the current user's role.
Dynamic Columns
Configure ifRender on @View to dynamically control whether a table column is displayed:
java
@Erupt(name = "Dynamic Columns")
@Table(name = "t_test")
@Entity
public class Simple extends BaseModel {
@EruptField(
views = @View(
title = "Dynamic Column",
ifRender = @ExprBool(exprHandler = DynamicView.class)
)
)
private String dynamic;
}java
import xyz.erupt.annotation.expr.ExprBool;
@Component
public class DynamicView implements ExprBool.ExprHandler {
@Override
public boolean handler(boolean expr, String[] params) {
// TODO: dynamic control logic, e.g., show/hide based on the current logged-in user
return false;
}
}Dynamic Form Fields
Configure ifRender on @Edit to dynamically control whether a form component is rendered:
java
@Erupt(name = "Dynamic Form")
@Table(name = "t_test")
@Entity
public class Simple extends BaseModel {
@EruptField(
edit = @Edit(
title = "Dynamic Field",
ifRender = @ExprBool(exprHandler = DynamicEdit.class)
)
)
private String dynamic;
}java
import xyz.erupt.annotation.expr.ExprBool;
@Component
public class DynamicEdit implements ExprBool.ExprHandler {
@Override
public boolean handler(boolean expr, String[] params) {
// TODO: dynamic control logic, e.g., show/hide based on the current logged-in user
return false;
}
}Related Capabilities
- Controlling component state based on another field's value: @Dynamic
- Updating other fields in real time on value change: OnChange Field Linkage
Contributors
YuePeng
Claude Opus 5 (1M context)