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Avoid repeating attachment subquery in post queries

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This commit is contained in:
silverpill 2021-11-11 18:35:27 +00:00
parent fa7bff4b31
commit 06010e4403
2 changed files with 45 additions and 34 deletions
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12
src/models/notifications/queries.rs
View file

@ -5,6 +5,7 @@ use uuid::Uuid;
use crate::errors::DatabaseError;
use crate::models::posts::helpers::get_actions_for_posts;
use crate::models::posts::queries::RELATED_ATTACHMENTS;
use super::types::{EventType, Notification};
async fn create_notification(
@ -68,14 +69,11 @@ pub async fn get_notifications(
db_client: &impl GenericClient,
recipient_id: &Uuid,
) -> Result<Vec<Notification>, DatabaseError> {
let rows = db_client.query(
let statement = format!(
"
SELECT
notification, sender, post, post_author,
ARRAY(
SELECT media_attachment
FROM media_attachment WHERE post_id = post.id
) AS attachments
{related_attachments}
FROM notification
JOIN actor_profile AS sender
ON notification.sender_id = sender.id
@ -86,6 +84,10 @@ pub async fn get_notifications(
WHERE recipient_id = $1
ORDER BY notification.created_at DESC
",
related_attachments=RELATED_ATTACHMENTS,
);
let rows = db_client.query(
statement.as_str(),
&[&recipient_id],
).await?;
let mut notifications: Vec<Notification> = rows.iter()

67
src/models/posts/queries.rs
View file

@ -15,20 +15,23 @@ use crate::models::notifications::queries::create_reply_notification;
use crate::models::profiles::queries::update_post_count;
use super::types::{DbPost, Post, PostCreateData};
pub const RELATED_ATTACHMENTS: &str =
"ARRAY(
SELECT media_attachment
FROM media_attachment WHERE post_id = post.id
) AS attachments";
pub async fn get_home_timeline(
db_client: &impl GenericClient,
current_user_id: &Uuid,
) -> Result<Vec<Post>, DatabaseError> {
// Select posts from follows + own posts.
// Do not select replies
let rows = db_client.query(
let statement = format!(
"
SELECT
post, actor_profile,
ARRAY(
SELECT media_attachment
FROM media_attachment WHERE post_id = post.id
) AS attachments
{related_attachments}
FROM post
JOIN actor_profile ON post.author_id = actor_profile.id
WHERE
@ -42,6 +45,10 @@ pub async fn get_home_timeline(
)
ORDER BY post.created_at DESC
",
related_attachments=RELATED_ATTACHMENTS,
);
let rows = db_client.query(
statement.as_str(),
&[&current_user_id],
).await?;
let posts: Vec<Post> = rows.iter()
@ -64,15 +71,13 @@ pub async fn get_posts_by_author(
"
SELECT
post, actor_profile,
ARRAY(
SELECT media_attachment
FROM media_attachment WHERE post_id = post.id
) AS attachments
{related_attachments}
FROM post
JOIN actor_profile ON post.author_id = actor_profile.id
WHERE {condition}
ORDER BY post.created_at DESC
",
related_attachments=RELATED_ATTACHMENTS,
condition=condition,
);
let rows = db_client.query(
@ -155,18 +160,19 @@ pub async fn get_post_by_id(
db_client: &impl GenericClient,
post_id: &Uuid,
) -> Result<Post, DatabaseError> {
let maybe_row = db_client.query_opt(
let statement = format!(
"
SELECT
post, actor_profile,
ARRAY(
SELECT media_attachment
FROM media_attachment WHERE post_id = post.id
) AS attachments
{related_attachments}
FROM post
JOIN actor_profile ON post.author_id = actor_profile.id
WHERE post.id = $1
",
related_attachments=RELATED_ATTACHMENTS,
);
let maybe_row = db_client.query_opt(
statement.as_str(),
&[&post_id],
).await?;
let post = match maybe_row {
@ -183,7 +189,7 @@ pub async fn get_thread(
post_id: &Uuid,
) -> Result<Vec<Post>, DatabaseError> {
// TODO: limit recursion depth
let rows = db_client.query(
let statement = format!(
"
WITH RECURSIVE
ancestors (id, in_reply_to_id) AS (
@ -202,15 +208,16 @@ pub async fn get_thread(
)
SELECT
post, actor_profile,
ARRAY(
SELECT media_attachment
FROM media_attachment WHERE post_id = post.id
) AS attachments
{related_attachments}
FROM post
JOIN context ON post.id = context.id
JOIN actor_profile ON post.author_id = actor_profile.id
ORDER BY context.path
",
related_attachments=RELATED_ATTACHMENTS,
);
let rows = db_client.query(
statement.as_str(),
&[&post_id],
).await?;
let posts: Vec<Post> = rows.iter()
@ -226,18 +233,19 @@ pub async fn get_post_by_object_id(
db_client: &impl GenericClient,
object_id: &str,
) -> Result<Post, DatabaseError> {
let maybe_row = db_client.query_opt(
let statement = format!(
"
SELECT
post, actor_profile,
ARRAY(
SELECT media_attachment
FROM media_attachment WHERE post_id = post.id
) AS attachments
{related_attachments}
FROM post
JOIN actor_profile ON post.author_id = actor_profile.id
WHERE post.object_id = $1
",
related_attachments=RELATED_ATTACHMENTS,
);
let maybe_row = db_client.query_opt(
statement.as_str(),
&[&object_id],
).await?;
let row = maybe_row.ok_or(DatabaseError::NotFound("post"))?;
@ -249,18 +257,19 @@ pub async fn get_post_by_ipfs_cid(
db_client: &impl GenericClient,
ipfs_cid: &str,
) -> Result<Post, DatabaseError> {
let result = db_client.query_opt(
let statement = format!(
"
SELECT
post, actor_profile,
ARRAY(
SELECT media_attachment
FROM media_attachment WHERE post_id = post.id
) AS attachments
{related_attachments}
FROM post
JOIN actor_profile ON post.author_id = actor_profile.id
WHERE post.ipfs_cid = $1
",
related_attachments=RELATED_ATTACHMENTS,
);
let result = db_client.query_opt(
statement.as_str(),
&[&ipfs_cid],
).await?;
let post = match result {