weli
44c320d8fa
Track required workspace crates, scripts, and historical diesel migrations so the repository contains the complete runnable backend baseline. Made-with: Cursor
74 lines
2.3 KiB
SQL
74 lines
2.3 KiB
SQL
-- Your SQL goes here
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create table kecheng
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(
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id varchar not null
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constraint kecheng_teacher_pk
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primary key,
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kecheng_name varchar not null,
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kecheng_status varchar not null,
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kecheng_desc varchar,
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start_from timestamp not null,
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end_by timestamp not null,
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duration integer,
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root_id varchar not null
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constraint kecheng_teacher_kecheng_teacher_id_fk
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references kecheng,
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kecheng_type varchar,
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parent_id varchar not null
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constraint kecheng_kecheng_id_fk
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references kecheng,
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created_by varchar,
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created_at timestamp
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);
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comment on column kecheng.duration is '课程时长（分钟）';
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comment on column kecheng.kecheng_type is '未来可能用前端的在线上课功能';
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comment on column kecheng.parent_id is '第一条数据的`parent_id`是自己。';
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create unique index kecheng_teacher_id_uindex
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on kecheng (id);
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create table kecheng_repeat
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(
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id varchar not null
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primary key,
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kecheng_id varchar not null
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constraint kecheng_repeat_kecheng_id_fk
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references kecheng,
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start_from timestamp,
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end_by timestamp,
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repeat_start timestamp,
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repeat_cycle_days integer not null,
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repeat_end timestamp,
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repeat_status varchar not null
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);
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comment on column kecheng_repeat.start_from is '课程当天开始时间';
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comment on column kecheng_repeat.end_by is '课程的当天结束时间';
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comment on column kecheng_repeat.repeat_start is '不需要`repeat_end`了，因为同一组`kecheng_root_id`的数据按照`repeat_start`时间排列，后一个就是前一个的end时间。';
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comment on column kecheng_repeat.repeat_end is '重复课程的结束时间';
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comment on column kecheng_repeat.repeat_status is 'ON_GOING / STOPPED / PENDING / ... / STATUS优先级大于`repeat_end`';
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create table kecheng_users
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(
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id varchar not null
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primary key,
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user_id varchar not null,
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kecheng_id varchar not null
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constraint kecheng_users_kecheng_id_fk
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references kecheng,
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kecheng_status varchar not null,
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user_type varchar not null
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);
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comment on column kecheng_users.user_type is '老师，学生，助教，等等';
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