47 lines
1.3 KiB
Rust
47 lines
1.3 KiB
Rust
use sea_orm::{ActiveModelTrait, ColumnTrait, DbConn, DbErr, EntityTrait, QueryFilter, Set};
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use crate::error::UserError;
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use models::domains::follow;
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pub async fn follow_user(db: &DbConn, follower_id: i32, followed_id: i32) -> Result<(), DbErr> {
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if follower_id == followed_id {
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return Err(DbErr::Custom("Users cannot follow themselves".to_string()));
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}
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let follow = follow::ActiveModel {
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follower_id: Set(follower_id),
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followed_id: Set(followed_id),
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};
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follow.insert(db).await?;
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Ok(())
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}
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pub async fn unfollow_user(
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db: &DbConn,
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follower_id: i32,
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followed_id: i32,
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) -> Result<(), UserError> {
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let deleted_result = follow::Entity::delete_many()
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.filter(follow::Column::FollowerId.eq(follower_id))
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.filter(follow::Column::FollowedId.eq(followed_id))
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.exec(db)
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.await
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.map_err(|e| UserError::Internal(e.to_string()))?;
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if deleted_result.rows_affected == 0 {
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return Err(UserError::NotFollowing);
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}
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Ok(())
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}
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pub async fn get_followed_ids(db: &DbConn, user_id: i32) -> Result<Vec<i32>, DbErr> {
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let followed_users = follow::Entity::find()
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.filter(follow::Column::FollowerId.eq(user_id))
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.all(db)
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.await?;
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Ok(followed_users.into_iter().map(|f| f.followed_id).collect())
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}
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