102 lines
3.5 KiB
Rust
102 lines
3.5 KiB
Rust
use super::m20240101_000001_init::User;
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use sea_orm_migration::{prelude::*, schema::*};
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#[derive(DeriveMigrationName)]
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pub struct Migration;
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#[async_trait::async_trait]
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impl MigrationTrait for Migration {
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async fn up(&self, manager: &SchemaManager) -> Result<(), DbErr> {
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// --- Create Thought Table ---
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manager
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.create_table(
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Table::create()
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.table(Thought::Table)
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.if_not_exists()
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.col(
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ColumnDef::new(Thought::Id)
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.uuid()
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.not_null()
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.primary_key()
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.default(Expr::cust("gen_random_uuid()")),
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)
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.col(uuid(Thought::AuthorId).not_null())
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.foreign_key(
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ForeignKey::create()
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.name("fk_thought_author_id")
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.from(Thought::Table, Thought::AuthorId)
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.to(User::Table, User::Id)
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.on_update(ForeignKeyAction::NoAction)
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.on_delete(ForeignKeyAction::Cascade),
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)
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.col(string(Thought::Content).not_null())
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.col(
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timestamp_with_time_zone(Thought::CreatedAt)
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.not_null()
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.default(Expr::current_timestamp()),
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)
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.to_owned(),
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)
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.await?;
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// --- Create Follow Table ---
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manager
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.create_table(
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Table::create()
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.table(Follow::Table)
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.if_not_exists()
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.col(uuid(Follow::FollowerId).not_null())
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.col(uuid(Follow::FollowingId).not_null())
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// Composite Primary Key to ensure a user can only follow another once
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.primary_key(
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Index::create()
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.col(Follow::FollowerId)
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.col(Follow::FollowingId),
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)
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.foreign_key(
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ForeignKey::create()
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.name("fk_follow_follower_id")
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.from(Follow::Table, Follow::FollowerId)
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.to(User::Table, User::Id)
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.on_delete(ForeignKeyAction::Cascade),
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)
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.foreign_key(
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ForeignKey::create()
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.name("fk_follow_following_id")
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.from(Follow::Table, Follow::FollowingId)
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.to(User::Table, User::Id)
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.on_delete(ForeignKeyAction::Cascade),
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)
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.to_owned(),
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)
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.await
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}
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async fn down(&self, manager: &SchemaManager) -> Result<(), DbErr> {
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manager
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.drop_table(Table::drop().table(Follow::Table).to_owned())
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.await?;
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manager
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.drop_table(Table::drop().table(Thought::Table).to_owned())
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.await
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}
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}
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#[derive(DeriveIden)]
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pub enum Thought {
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Table,
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Id,
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AuthorId,
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Content,
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CreatedAt,
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}
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#[derive(DeriveIden)]
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pub enum Follow {
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Table,
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// The user who is initiating the follow
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FollowerId,
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// The user who is being followed
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FollowingId,
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}
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