Many-to-One Tree Reference REFERENCE_TREE
Opens a tree selector for the user to select a related record. Corresponds to the JPA @ManyToOne relationship. Suitable when the referenced data has a hierarchical structure.
Basic Usage
java
@ManyToOne
@JoinColumn(name = "tree_id")
@EruptField(
edit = @Edit(
title = "Tree Reference",
type = EditType.REFERENCE_TREE,
referenceTreeType = @ReferenceTreeType(
id = "id", label = "name",
pid = "parent.id" // If pid is omitted, data is displayed as a list
)
)
)
private Tree tree;Referenced tree entity class:
java
@Entity
@Table(name = "t_tree")
@Erupt(name = "Tree", tree = @Tree(pid = "parent.id"))
public class Tree extends BaseModel {
@EruptField(views = @View(title = "Name"), edit = @Edit(title = "Name"))
private String name;
@ManyToOne
@JoinColumn(name = "parent_id")
@EruptField(
edit = @Edit(title = "Parent Node", type = EditType.REFERENCE_TREE,
referenceTreeType = @ReferenceTreeType(pid = "parent.id"))
)
private Tree parent;
}Configuration
java
public @interface ReferenceTreeType {
String id() default "id"; // Field used for storage
String label() default "name"; // Field used for display
String pid() default ""; // Parent node field; if omitted, data is displayed as a list
Expr rootPid() default @Expr; // Root node pid condition
int expandLevel() default 999; // Default expansion level
String dependField() default ""; // Field name in the current table that this field depends on
String dependColumn() default "id"; // The column in the dependency field used for matching
}Contributors
YuePeng