lemmy/crates/db_schema/src/impls/post.rs

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use crate::{
newtypes::{CommunityId, DbUrl, PersonId, PostId},
schema::post::dsl::{
ap_id,
body,
community_id,
creator_id,
deleted,
featured_community,
name,
post,
published,
removed,
thumbnail_url,
updated,
url,
},
source::post::{
Post,
PostInsertForm,
PostLike,
PostLikeForm,
PostRead,
PostReadForm,
PostSaved,
PostSavedForm,
PostUpdateForm,
},
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traits::{Crud, DeleteableOrRemoveable, Likeable, Readable, Saveable},
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utils::{get_conn, naive_now, DbPool, FETCH_LIMIT_MAX},
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};
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use ::url::Url;
use diesel::{dsl::insert_into, result::Error, ExpressionMethods, QueryDsl, TextExpressionMethods};
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use diesel_async::RunQueryDsl;
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#[async_trait]
impl Crud for Post {
type InsertForm = PostInsertForm;
type UpdateForm = PostUpdateForm;
type IdType = PostId;
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async fn read(pool: &DbPool, post_id: PostId) -> Result<Self, Error> {
let conn = &mut get_conn(pool).await?;
post.find(post_id).first::<Self>(conn).await
}
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async fn delete(pool: &DbPool, post_id: PostId) -> Result<usize, Error> {
let conn = &mut get_conn(pool).await?;
diesel::delete(post.find(post_id)).execute(conn).await
}
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async fn create(pool: &DbPool, form: &Self::InsertForm) -> Result<Self, Error> {
let conn = &mut get_conn(pool).await?;
insert_into(post)
.values(form)
.on_conflict(ap_id)
.do_update()
.set(form)
.get_result::<Self>(conn)
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.await
}
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async fn update(
pool: &DbPool,
post_id: PostId,
new_post: &Self::UpdateForm,
) -> Result<Self, Error> {
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let conn = &mut get_conn(pool).await?;
diesel::update(post.find(post_id))
.set(new_post)
.get_result::<Self>(conn)
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.await
}
}
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impl Post {
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pub async fn list_for_community(
pool: &DbPool,
the_community_id: CommunityId,
) -> Result<Vec<Self>, Error> {
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let conn = &mut get_conn(pool).await?;
post
.filter(community_id.eq(the_community_id))
.filter(deleted.eq(false))
.filter(removed.eq(false))
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.then_order_by(published.desc())
.then_order_by(featured_community.desc())
.limit(FETCH_LIMIT_MAX)
.load::<Self>(conn)
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.await
}
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pub async fn permadelete_for_creator(
pool: &DbPool,
for_creator_id: PersonId,
) -> Result<Vec<Self>, Error> {
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let conn = &mut get_conn(pool).await?;
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let perma_deleted = "*Permananently Deleted*";
let perma_deleted_url = "https://deleted.com";
diesel::update(post.filter(creator_id.eq(for_creator_id)))
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.set((
name.eq(perma_deleted),
url.eq(perma_deleted_url),
body.eq(perma_deleted),
deleted.eq(true),
updated.eq(naive_now()),
))
.get_results::<Self>(conn)
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.await
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}
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pub async fn update_removed_for_creator(
pool: &DbPool,
for_creator_id: PersonId,
for_community_id: Option<CommunityId>,
new_removed: bool,
) -> Result<Vec<Self>, Error> {
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let conn = &mut get_conn(pool).await?;
let mut update = diesel::update(post).into_boxed();
update = update.filter(creator_id.eq(for_creator_id));
if let Some(for_community_id) = for_community_id {
update = update.filter(community_id.eq(for_community_id));
}
update
.set((removed.eq(new_removed), updated.eq(naive_now())))
.get_results::<Self>(conn)
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.await
}
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pub fn is_post_creator(person_id: PersonId, post_creator_id: PersonId) -> bool {
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person_id == post_creator_id
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}
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pub async fn read_from_apub_id(pool: &DbPool, object_id: Url) -> Result<Option<Self>, Error> {
let conn = &mut get_conn(pool).await?;
let object_id: DbUrl = object_id.into();
Ok(
post
.filter(ap_id.eq(object_id))
.first::<Post>(conn)
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.await
.ok()
.map(Into::into),
)
}
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pub async fn fetch_pictrs_posts_for_creator(
pool: &DbPool,
for_creator_id: PersonId,
) -> Result<Vec<Self>, Error> {
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let conn = &mut get_conn(pool).await?;
let pictrs_search = "%pictrs/image%";
post
.filter(creator_id.eq(for_creator_id))
.filter(url.like(pictrs_search))
.load::<Self>(conn)
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.await
}
/// Sets the url and thumbnails fields to None
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pub async fn remove_pictrs_post_images_and_thumbnails_for_creator(
pool: &DbPool,
for_creator_id: PersonId,
) -> Result<Vec<Self>, Error> {
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let conn = &mut get_conn(pool).await?;
let pictrs_search = "%pictrs/image%";
diesel::update(
post
.filter(creator_id.eq(for_creator_id))
.filter(url.like(pictrs_search)),
)
.set((
url.eq::<Option<String>>(None),
thumbnail_url.eq::<Option<String>>(None),
))
.get_results::<Self>(conn)
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.await
}
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pub async fn fetch_pictrs_posts_for_community(
pool: &DbPool,
for_community_id: CommunityId,
) -> Result<Vec<Self>, Error> {
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let conn = &mut get_conn(pool).await?;
let pictrs_search = "%pictrs/image%";
post
.filter(community_id.eq(for_community_id))
.filter(url.like(pictrs_search))
.load::<Self>(conn)
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.await
}
/// Sets the url and thumbnails fields to None
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pub async fn remove_pictrs_post_images_and_thumbnails_for_community(
pool: &DbPool,
for_community_id: CommunityId,
) -> Result<Vec<Self>, Error> {
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let conn = &mut get_conn(pool).await?;
let pictrs_search = "%pictrs/image%";
diesel::update(
post
.filter(community_id.eq(for_community_id))
.filter(url.like(pictrs_search)),
)
.set((
url.eq::<Option<String>>(None),
thumbnail_url.eq::<Option<String>>(None),
))
.get_results::<Self>(conn)
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.await
}
}
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#[async_trait]
impl Likeable for PostLike {
type Form = PostLikeForm;
type IdType = PostId;
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async fn like(pool: &DbPool, post_like_form: &PostLikeForm) -> Result<Self, Error> {
use crate::schema::post_like::dsl::{person_id, post_id, post_like};
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let conn = &mut get_conn(pool).await?;
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insert_into(post_like)
.values(post_like_form)
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.on_conflict((post_id, person_id))
.do_update()
.set(post_like_form)
.get_result::<Self>(conn)
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.await
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}
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async fn remove(pool: &DbPool, person_id: PersonId, post_id: PostId) -> Result<usize, Error> {
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use crate::schema::post_like::dsl;
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let conn = &mut get_conn(pool).await?;
diesel::delete(
dsl::post_like
.filter(dsl::post_id.eq(post_id))
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.filter(dsl::person_id.eq(person_id)),
)
.execute(conn)
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.await
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}
}
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#[async_trait]
impl Saveable for PostSaved {
type Form = PostSavedForm;
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async fn save(pool: &DbPool, post_saved_form: &PostSavedForm) -> Result<Self, Error> {
use crate::schema::post_saved::dsl::{person_id, post_id, post_saved};
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let conn = &mut get_conn(pool).await?;
insert_into(post_saved)
.values(post_saved_form)
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.on_conflict((post_id, person_id))
.do_update()
.set(post_saved_form)
.get_result::<Self>(conn)
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.await
}
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async fn unsave(pool: &DbPool, post_saved_form: &PostSavedForm) -> Result<usize, Error> {
use crate::schema::post_saved::dsl::{person_id, post_id, post_saved};
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let conn = &mut get_conn(pool).await?;
diesel::delete(
post_saved
.filter(post_id.eq(post_saved_form.post_id))
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.filter(person_id.eq(post_saved_form.person_id)),
)
.execute(conn)
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.await
}
}
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#[async_trait]
impl Readable for PostRead {
type Form = PostReadForm;
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async fn mark_as_read(pool: &DbPool, post_read_form: &PostReadForm) -> Result<Self, Error> {
use crate::schema::post_read::dsl::{person_id, post_id, post_read};
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let conn = &mut get_conn(pool).await?;
insert_into(post_read)
.values(post_read_form)
.on_conflict((post_id, person_id))
.do_update()
.set(post_read_form)
.get_result::<Self>(conn)
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.await
}
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async fn mark_as_unread(pool: &DbPool, post_read_form: &PostReadForm) -> Result<usize, Error> {
use crate::schema::post_read::dsl::{person_id, post_id, post_read};
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let conn = &mut get_conn(pool).await?;
diesel::delete(
post_read
.filter(post_id.eq(post_read_form.post_id))
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.filter(person_id.eq(post_read_form.person_id)),
)
.execute(conn)
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.await
}
}
impl DeleteableOrRemoveable for Post {
fn blank_out_deleted_or_removed_info(mut self) -> Self {
self.name = String::new();
self.url = None;
self.body = None;
self.embed_title = None;
self.embed_description = None;
self.embed_video_url = None;
self.thumbnail_url = None;
self
}
}
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#[cfg(test)]
mod tests {
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use crate::{
source::{
community::{Community, CommunityInsertForm},
instance::Instance,
person::{Person, PersonInsertForm},
post::{
Post,
PostInsertForm,
PostLike,
PostLikeForm,
PostRead,
PostReadForm,
PostSaved,
PostSavedForm,
PostUpdateForm,
},
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},
traits::{Crud, Likeable, Readable, Saveable},
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utils::build_db_pool_for_tests,
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};
use serial_test::serial;
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#[tokio::test]
#[serial]
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async fn test_crud() {
let pool = &build_db_pool_for_tests().await;
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let inserted_instance = Instance::create(pool, "my_domain.tld").await.unwrap();
let new_person = PersonInsertForm::builder()
.name("jim".into())
.public_key("pubkey".to_string())
.instance_id(inserted_instance.id)
.build();
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let inserted_person = Person::create(pool, &new_person).await.unwrap();
let new_community = CommunityInsertForm::builder()
.name("test community_3".to_string())
.title("nada".to_owned())
.public_key("pubkey".to_string())
.instance_id(inserted_instance.id)
.build();
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let inserted_community = Community::create(pool, &new_community).await.unwrap();
let new_post = PostInsertForm::builder()
.name("A test post".into())
.creator_id(inserted_person.id)
.community_id(inserted_community.id)
.build();
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let inserted_post = Post::create(pool, &new_post).await.unwrap();
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let expected_post = Post {
id: inserted_post.id,
name: "A test post".into(),
url: None,
body: None,
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creator_id: inserted_person.id,
community_id: inserted_community.id,
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published: inserted_post.published,
removed: false,
locked: false,
nsfw: false,
deleted: false,
updated: None,
embed_title: None,
embed_description: None,
embed_video_url: None,
thumbnail_url: None,
ap_id: inserted_post.ap_id.clone(),
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local: true,
language_id: Default::default(),
featured_community: false,
featured_local: false,
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};
// Post Like
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let post_like_form = PostLikeForm {
post_id: inserted_post.id,
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person_id: inserted_person.id,
score: 1,
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};
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let inserted_post_like = PostLike::like(pool, &post_like_form).await.unwrap();
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let expected_post_like = PostLike {
id: inserted_post_like.id,
post_id: inserted_post.id,
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person_id: inserted_person.id,
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published: inserted_post_like.published,
score: 1,
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};
// Post Save
let post_saved_form = PostSavedForm {
post_id: inserted_post.id,
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person_id: inserted_person.id,
};
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let inserted_post_saved = PostSaved::save(pool, &post_saved_form).await.unwrap();
let expected_post_saved = PostSaved {
id: inserted_post_saved.id,
post_id: inserted_post.id,
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person_id: inserted_person.id,
published: inserted_post_saved.published,
};
// Post Read
let post_read_form = PostReadForm {
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post_id: inserted_post.id,
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person_id: inserted_person.id,
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};
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let inserted_post_read = PostRead::mark_as_read(pool, &post_read_form).await.unwrap();
let expected_post_read = PostRead {
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id: inserted_post_read.id,
post_id: inserted_post.id,
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person_id: inserted_person.id,
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published: inserted_post_read.published,
};
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let read_post = Post::read(pool, inserted_post.id).await.unwrap();
let new_post_update = PostUpdateForm::builder()
.name(Some("A test post".into()))
.build();
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let updated_post = Post::update(pool, inserted_post.id, &new_post_update)
.await
.unwrap();
let like_removed = PostLike::remove(pool, inserted_person.id, inserted_post.id)
.await
.unwrap();
let saved_removed = PostSaved::unsave(pool, &post_saved_form).await.unwrap();
let read_removed = PostRead::mark_as_unread(pool, &post_read_form)
.await
.unwrap();
let num_deleted = Post::delete(pool, inserted_post.id).await.unwrap();
Community::delete(pool, inserted_community.id)
.await
.unwrap();
Person::delete(pool, inserted_person.id).await.unwrap();
Instance::delete(pool, inserted_instance.id).await.unwrap();
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assert_eq!(expected_post, read_post);
assert_eq!(expected_post, inserted_post);
assert_eq!(expected_post, updated_post);
assert_eq!(expected_post_like, inserted_post_like);
assert_eq!(expected_post_saved, inserted_post_saved);
assert_eq!(expected_post_read, inserted_post_read);
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assert_eq!(1, like_removed);
assert_eq!(1, saved_removed);
assert_eq!(1, read_removed);
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assert_eq!(1, num_deleted);
}
}