e991b2965a
* chore: test * chore: inherited-collection class * feat: collection inherit * feat: collection inherit * feat: inhertis sync runner * test: get parents fields * feat: collection inherit style promote * feat: sync * feat: sync alter table * feat: pgOnly Test * fix: child collection create api * feat: replace parent field * chore: reload parent fields * test: reload collection test * feat: details are displayed according to conditions * fix: typo * feat: inheritance map class * chore: is parent node * feat: display where child row created from * fix: find with appends * feat: add parent collection fields * fix: create table * feat: load fields for all children * refactor: sync fields from parent * test: has one field inhertis * feat: replace child association target * feat: should not replace child field when parent field update * test: should update inherit field when parent field update * feat: only the blocks directly inherited from the current data are displayed * fix: inherit from multiple collections * feat: only the blocks directly inherited from the current data are displayed * fix: test * feat: parent collection expend * fix: test * test: belongsToMany inherits * test: belongsToMany inherits * feat: block display * feat: collection inherite * feat: collection inherite * feat: multiple inherits * fix: sync runner * feat: collection inherite * feat: collecton inherits * feat: cannot be modified after inheritance and saving * feat: collection inherit for graph * feat: collection inherits * fix: drop inhertied field * fix: should throw error when type conflit * feat: output inherited fields * feat: bulk update collection fields * feat: collection fields * feat: collection fields * test: create relation with child table * fix: test * fix: test * fix: test * feat: style impove * test: should not replace field with difference type * feat: add text * fix: throw error when replace field with difference type * feat: overriding * feat: kan bankanban group fields * feat: calendar block fields * feat: kan bankanban group fields * fix: test * feat: relationship fields * feat: should delete child's field when parent field deleted * feat: foreign key filter * fix: build error & multiple inherit destory field * fix: test * chore: disable error * feat: no recursive update associations (#1091) * feat: update associations * fix(collection-manager): should update uiSchema * chore: flip if * feat: mutile inherits * feat: db dialect * feat: inherits show by database * chore: git hash into docker image * fix: js gzip * fix: dockerfile * chore: error message * feat: overriding * feat: overriding * feat: overriding * feat: local * feat: filter fields by interface * fix: database logging env * test: replace hasOne target * feat: add view * feat: local * chore: enable error * fix: update docs Co-authored-by: katherinehhh <katherine_15995@163.com> Co-authored-by: chenos <chenlinxh@gmail.com>
2.0 KiB
2.0 KiB
v0.8.1: 数据表继承
数据表继承基于 PostgreSQL 的 INHERITS 语法 实现，仅限于 PostgreSQL 数据库安装的 NocoBase 时才会提供。
示例
我们从一个例子开始，假设要做一个教学系统，有三类用户：学生、家长和老师。
如果没有继承，要分别为三类用户建表：
- 学生：姓名、年龄、性别、身份证
- 家长：姓名、年龄、性别、职业、学历
- 老师：姓名、年龄、性别、教龄、已婚
有了数据表继承之后，共同的信息就可以提炼出来：
- 用户：姓名、年龄、性别
- 学生：身份证
- 家长：职业、学历
- 老师：教龄、已婚
ER 图如下：
注：子表 ID 和父表 ID 共享序列
配置数据表继承
Inherits 字段选择需要继承的数据表
通过代码配置如下：
db.collection({
name: 'users',
});
db.collection({
name: 'students',
inherits: 'users',
});
注意：
- 继承的表并不能随意选择，主键必须是唯一序列，比如 uuid 或者所有继承线路上的表的 id 自增序列都用同一个
- Inherits 参数不能被编辑
- 如果有继承关系，被继承的父表不能被删除
数据表字段列表
字段列表里同步显示继承的父表字段，父表字段不可以修改，但可以重写（Override）
重写父表字段的注意事项：
- 子表字段标识与父表字段一样时为重写
- 重写字段的类型必须保持一致
- 关系字段除了 target collection 以外的其他参数需要保持一致
父表的子表区块
在父表区块里可以配置子表的区块
新增继承的父表字段的配置
当有继承的父表时，配置字段时，会提供从父表继承的字段的配置
