implement recursive channel query
This commit is contained in:
Mikayla Maki
parent
15631a6fd5
commit
0998440bdd
5 changed files with 191 additions and 138 deletions
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@ -187,7 +187,6 @@ CREATE INDEX "index_followers_on_room_id" ON "followers" ("room_id");
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CREATE TABLE "channels" (
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"id" INTEGER PRIMARY KEY AUTOINCREMENT,
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-- "id_path" TEXT NOT NULL,
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"name" VARCHAR NOT NULL,
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"room_id" INTEGER REFERENCES rooms (id) ON DELETE SET NULL,
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"created_at" TIMESTAMP NOT NULL DEFAULT now
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@ -199,8 +198,6 @@ CREATE TABLE "channel_parents" (
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PRIMARY KEY(child_id, parent_id)
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);
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-- CREATE UNIQUE INDEX "index_channels_on_id_path" ON "channels" ("id_path");
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CREATE TABLE "channel_members" (
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"id" INTEGER PRIMARY KEY AUTOINCREMENT,
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"channel_id" INTEGER NOT NULL REFERENCES channels (id) ON DELETE CASCADE,
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@ -1,7 +1,7 @@
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mod access_token;
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mod channel;
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mod channel_member;
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// mod channel_parent;
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mod channel_parent;
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mod contact;
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mod follower;
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mod language_server;
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@ -39,7 +39,10 @@ use sea_orm::{
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DbErr, FromQueryResult, IntoActiveModel, IsolationLevel, JoinType, QueryOrder, QuerySelect,
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Statement, TransactionTrait,
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};
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use sea_query::{Alias, Expr, OnConflict, Query, SelectStatement};
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use sea_query::{
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Alias, ColumnRef, CommonTableExpression, Expr, OnConflict, Order, Query, QueryStatementWriter,
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SelectStatement, UnionType, WithClause,
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};
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use serde::{Deserialize, Serialize};
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pub use signup::{Invite, NewSignup, WaitlistSummary};
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use sqlx::migrate::{Migrate, Migration, MigrationSource};
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@ -3032,7 +3035,11 @@ impl Database {
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// channels
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pub async fn create_channel(&self, name: &str) -> Result<ChannelId> {
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pub async fn create_root_channel(&self, name: &str) -> Result<ChannelId> {
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self.create_channel(name, None).await
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}
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pub async fn create_channel(&self, name: &str, parent: Option<ChannelId>) -> Result<ChannelId> {
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self.transaction(move |tx| async move {
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let tx = tx;
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@ -3043,10 +3050,21 @@ impl Database {
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let channel = channel.insert(&*tx).await?;
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Ok(channel.id)
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}).await
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if let Some(parent) = parent {
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channel_parent::ActiveModel {
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child_id: ActiveValue::Set(channel.id),
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parent_id: ActiveValue::Set(parent),
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}
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.insert(&*tx)
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.await?;
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}
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Ok(channel.id)
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})
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.await
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}
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// Property: Members are only
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pub async fn add_channel_member(&self, channel_id: ChannelId, user_id: UserId) -> Result<()> {
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self.transaction(move |tx| async move {
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let tx = tx;
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@ -3060,139 +3078,108 @@ impl Database {
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channel_membership.insert(&*tx).await?;
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Ok(())
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}).await
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})
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.await
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}
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pub async fn get_channels(&self, user_id: UserId) -> Vec<ChannelId> {
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pub async fn get_channels(&self, user_id: UserId) -> Result<Vec<Channel>> {
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self.transaction(|tx| async move {
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let tx = tx;
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})
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// let user = user::Model {
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// id: user_id,
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// ..Default::default()
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// };
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// let mut channel_ids = user
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// .find_related(channel_member::Entity)
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// .select_only()
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// This is the SQL statement we want to generate:
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let sql = r#"
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WITH RECURSIVE channel_tree(child_id, parent_id, depth) AS (
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SELECT channel_id as child_id, NULL as parent_id, 0
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FROM channel_members
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WHERE user_id = ?
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UNION ALL
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SELECT channel_parents.child_id, channel_parents.parent_id, channel_tree.depth + 1
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FROM channel_parents, channel_tree
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WHERE channel_parents.parent_id = channel_tree.child_id
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)
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SELECT channel_tree.child_id as id, channels.name, channel_tree.parent_id
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FROM channel_tree
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JOIN channels ON channels.id = channel_tree.child_id
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ORDER BY channel_tree.depth;
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"#;
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// let root_channel_ids_query = SelectStatement::new()
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// .column(channel_member::Column::ChannelId)
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// .all(&*tx)
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// .await;
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// .expr(Expr::value("NULL"))
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// .from(channel_member::Entity.table_ref())
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// .and_where(
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// Expr::col(channel_member::Column::UserId)
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// .eq(Expr::cust_with_values("?", vec![user_id])),
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// );
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// // let descendants = Alias::new("descendants");
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// // let cte_referencing = SelectStatement::new()
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// // .column(channel_parent::Column::ChildId)
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// // .from(channel::Entity)
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// // .and_where(
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// // Expr::col(channel_parent::Column::ParentId)
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// // .in_subquery(SelectStatement::new().from(descendants).take())
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// // );
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// let build_tree_query = SelectStatement::new()
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// .column(channel_parent::Column::ChildId)
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// .column(channel_parent::Column::ParentId)
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// .expr(Expr::col(Alias::new("channel_tree.depth")).add(1i32))
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// .from(Alias::new("channel_tree"))
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// .and_where(
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// Expr::col(channel_parent::Column::ParentId)
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// .equals(Alias::new("channel_tree"), Alias::new("child_id")),
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// )
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// .to_owned();
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// // /*
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// // WITH RECURSIVE descendant_ids(id) AS (
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// // $1
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// // UNION ALL
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// // SELECT child_id as id FROM channel_parents WHERE parent_id IN descendants
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// // )
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// // SELECT * from channels where id in descendant_ids
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// // */
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// let common_table_expression = CommonTableExpression::new()
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// .query(
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// root_channel_ids_query
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// .union(UnionType::Distinct, build_tree_query)
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// .to_owned(),
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// )
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// .column(Alias::new("child_id"))
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// .column(Alias::new("parent_id"))
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// .column(Alias::new("depth"))
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// .table_name(Alias::new("channel_tree"))
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// .to_owned();
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// let select = SelectStatement::new()
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// .expr_as(
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// Expr::col(Alias::new("channel_tree.child_id")),
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// Alias::new("id"),
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// )
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// .column(channel::Column::Name)
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// .column(Alias::new("channel_tree.parent_id"))
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// .from(Alias::new("channel_tree"))
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// .inner_join(
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// channel::Entity.table_ref(),
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// Expr::eq(
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// channel::Column::Id.into_expr(),
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// Expr::tbl(Alias::new("channel_tree"), Alias::new("child_id")),
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// ),
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// )
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// .order_by(Alias::new("channel_tree.child_id"), Order::Asc)
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// .to_owned();
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// // // WITH RECURSIVE descendants(id) AS (
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// // // // SQL QUERY FOR SELECTING Initial IDs
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// // // UNION
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// // // SELECT id FROM ancestors WHERE p.parent = id
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// // // )
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// // // SELECT * FROM descendants;
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// let with_clause = WithClause::new()
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// .recursive(true)
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// .cte(common_table_expression)
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// .to_owned();
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// let query = select.with(with_clause);
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// let query = SelectStatement::new()
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// .column(ColumnRef::Asterisk)
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// .from_subquery(query, Alias::new("channel_tree")
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// .to_owned();
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// // // let descendant_channel_ids =
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// let stmt = self.pool.get_database_backend().build(&query);
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let stmt = Statement::from_sql_and_values(
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self.pool.get_database_backend(),
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sql,
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vec![user_id.into()],
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);
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// // // let query = sea_query::Query::with().recursive(true);
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// // for id_path in id_paths {
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// // //
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// // }
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// // // zed/public/plugins
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// // // zed/public/plugins/js
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// // // zed/zed-livekit
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// // // livekit/zed-livekit
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// // // zed - 101
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// // // livekit - 500
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// // // zed-livekit - 510
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// // // public - 150
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// // // plugins - 200
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// // // js - 300
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// // //
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// // // Channel, Parent - edges
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// // // 510 - 500
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// // // 510 - 101
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// // //
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// // // Given the channel 'Zed' (101)
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// // // Select * from EDGES where parent = 101 => 510
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// // //
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// // "SELECT * from channels where id_path like '$1?'"
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// // // https://www.postgresql.org/docs/current/queries-with.html
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// // // https://www.sqlite.org/lang_with.html
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// // "SELECT channel_id from channel_ancestors where ancestor_id IN $()"
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// // // | channel_id | ancestor_ids |
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// // // 150 150
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// // // 150 101
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// // // 200 101
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// // // 300 101
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// // // 200 150
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// // // 300 150
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// // // 300 200
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// // //
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// // // // | channel_id | ancestor_ids |
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// // // 150 101
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// // // 200 101
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// // // 300 101
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// // // 200 150
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// // // 300 [150, 200]
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// // channel::Entity::find()
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// // .filter(channel::Column::IdPath.like(id_paths.unwrap()))
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// // dbg!(&id_paths.unwrap()[0].id_path);
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// // // let mut channel_members_by_channel_id = HashMap::new();
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// // // for channel_member in channel_members {
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// // // channel_members_by_channel_id
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// // // .entry(channel_member.channel_id)
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// // // .or_insert_with(Vec::new)
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// // // .push(channel_member);
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// // // }
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// // // let mut channel_messages = channel_message::Entity::find()
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// // // .filter(channel_message::Column::ChannelId.in_selection(channel_ids))
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// // // .all(&*tx)
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// // // .await?;
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// // // let mut channel_messages_by_channel_id = HashMap::new();
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// // // for channel_message in channel_messages {
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// // // channel_messages_by_channel_id
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// // // .entry(channel_message.channel_id)
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// // // .or_insert_with(Vec::new)
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// // // .push(channel_message);
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// // // }
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// // todo!();
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// // // Ok(channels)
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// Err(Error("not implemented"))
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// })
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// .await
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Ok(channel_parent::Entity::find()
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.from_raw_sql(stmt)
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.into_model::<Channel>()
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.all(&*tx)
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.await?)
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})
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.await
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}
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async fn transaction<F, Fut, T>(&self, f: F) -> Result<T>
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@ -3440,6 +3427,13 @@ pub struct NewUserResult {
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pub signup_device_id: Option<String>,
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}
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#[derive(FromQueryResult, Debug, PartialEq)]
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pub struct Channel {
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pub id: ChannelId,
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pub name: String,
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pub parent_id: Option<ChannelId>,
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}
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fn random_invite_code() -> String {
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nanoid::nanoid!(16)
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}
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@ -8,7 +8,6 @@ pub struct Model {
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pub id: ChannelId,
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pub name: String,
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pub room_id: Option<RoomId>,
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// pub id_path: String,
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}
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impl ActiveModelBehavior for ActiveModel {}
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@ -11,3 +11,6 @@ pub struct Model {
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}
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impl ActiveModelBehavior for ActiveModel {}
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#[derive(Copy, Clone, Debug, EnumIter, DeriveRelation)]
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pub enum Relation {}
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@ -1,6 +1,8 @@
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use gpui::{executor::Deterministic, TestAppContext};
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use std::sync::Arc;
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use crate::db::Channel;
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use super::TestServer;
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#[gpui::test]
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@ -11,13 +13,71 @@ async fn test_basic_channels(deterministic: Arc<Deterministic>, cx: &mut TestApp
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let a_id = crate::db::UserId(client_a.user_id().unwrap() as i32);
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let db = server._test_db.db();
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let zed_id = db.create_channel("zed").await.unwrap();
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let zed_id = db.create_root_channel("zed").await.unwrap();
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let crdb_id = db.create_channel("crdb", Some(zed_id)).await.unwrap();
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let livestreaming_id = db
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.create_channel("livestreaming", Some(zed_id))
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.await
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.unwrap();
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let replace_id = db.create_channel("replace", Some(zed_id)).await.unwrap();
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let rust_id = db.create_root_channel("rust").await.unwrap();
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let cargo_id = db.create_channel("cargo", Some(rust_id)).await.unwrap();
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db.add_channel_member(zed_id, a_id).await.unwrap();
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db.add_channel_member(rust_id, a_id).await.unwrap();
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let channels = db.get_channels(a_id).await;
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let channels = db.get_channels(a_id).await.unwrap();
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assert_eq!(
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channels,
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vec![
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Channel {
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id: zed_id,
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name: "zed".to_string(),
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parent_id: None,
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},
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Channel {
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id: rust_id,
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name: "rust".to_string(),
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parent_id: None,
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},
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Channel {
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id: crdb_id,
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name: "crdb".to_string(),
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parent_id: Some(zed_id),
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},
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Channel {
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id: livestreaming_id,
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name: "livestreaming".to_string(),
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parent_id: Some(zed_id),
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},
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Channel {
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id: replace_id,
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name: "replace".to_string(),
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parent_id: Some(zed_id),
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},
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Channel {
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id: cargo_id,
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name: "cargo".to_string(),
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parent_id: Some(rust_id),
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}
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]
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);
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}
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assert_eq!(channels, vec![zed_id]);
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#[gpui::test]
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async fn test_block_cycle_creation(deterministic: Arc<Deterministic>, cx: &mut TestAppContext) {
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deterministic.forbid_parking();
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let mut server = TestServer::start(&deterministic).await;
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let client_a = server.create_client(cx, "user_a").await;
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let a_id = crate::db::UserId(client_a.user_id().unwrap() as i32);
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let db = server._test_db.db();
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let zed_id = db.create_root_channel("zed").await.unwrap();
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let first_id = db.create_channel("first", Some(zed_id)).await.unwrap();
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let second_id = db
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.create_channel("second_id", Some(first_id))
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.await
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.unwrap();
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}
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/*
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