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[lemmy.git] / crates / db_schema / src / impls / post.rs
1 use crate::{
2   newtypes::{CommunityId, DbUrl, PersonId, PostId},
3   schema::post::dsl::{
4     ap_id,
5     body,
6     community_id,
7     creator_id,
8     deleted,
9     featured_community,
10     name,
11     post,
12     published,
13     removed,
14     thumbnail_url,
15     updated,
16     url,
17   },
18   source::post::{
19     Post,
20     PostInsertForm,
21     PostLike,
22     PostLikeForm,
23     PostRead,
24     PostReadForm,
25     PostSaved,
26     PostSavedForm,
27     PostUpdateForm,
28   },
29   traits::{Crud, Likeable, Readable, Saveable},
30   utils::{get_conn, naive_now, DbPool, FETCH_LIMIT_MAX},
31 };
32 use ::url::Url;
33 use diesel::{dsl::insert_into, result::Error, ExpressionMethods, QueryDsl, TextExpressionMethods};
34 use diesel_async::RunQueryDsl;
35
36 #[async_trait]
37 impl Crud for Post {
38   type InsertForm = PostInsertForm;
39   type UpdateForm = PostUpdateForm;
40   type IdType = PostId;
41   async fn read(pool: &DbPool, post_id: PostId) -> Result<Self, Error> {
42     let conn = &mut get_conn(pool).await?;
43     post.find(post_id).first::<Self>(conn).await
44   }
45
46   async fn delete(pool: &DbPool, post_id: PostId) -> Result<usize, Error> {
47     let conn = &mut get_conn(pool).await?;
48     diesel::delete(post.find(post_id)).execute(conn).await
49   }
50
51   async fn create(pool: &DbPool, form: &Self::InsertForm) -> Result<Self, Error> {
52     let conn = &mut get_conn(pool).await?;
53     insert_into(post)
54       .values(form)
55       .on_conflict(ap_id)
56       .do_update()
57       .set(form)
58       .get_result::<Self>(conn)
59       .await
60   }
61
62   async fn update(
63     pool: &DbPool,
64     post_id: PostId,
65     new_post: &Self::UpdateForm,
66   ) -> Result<Self, Error> {
67     let conn = &mut get_conn(pool).await?;
68     diesel::update(post.find(post_id))
69       .set(new_post)
70       .get_result::<Self>(conn)
71       .await
72   }
73 }
74
75 impl Post {
76   pub async fn list_for_community(
77     pool: &DbPool,
78     the_community_id: CommunityId,
79   ) -> Result<Vec<Self>, Error> {
80     let conn = &mut get_conn(pool).await?;
81     post
82       .filter(community_id.eq(the_community_id))
83       .filter(deleted.eq(false))
84       .filter(removed.eq(false))
85       .then_order_by(featured_community.desc())
86       .then_order_by(published.desc())
87       .limit(FETCH_LIMIT_MAX)
88       .load::<Self>(conn)
89       .await
90   }
91
92   pub async fn list_featured_for_community(
93     pool: &DbPool,
94     the_community_id: CommunityId,
95   ) -> Result<Vec<Self>, Error> {
96     let conn = &mut get_conn(pool).await?;
97     post
98       .filter(community_id.eq(the_community_id))
99       .filter(deleted.eq(false))
100       .filter(removed.eq(false))
101       .filter(featured_community.eq(true))
102       .then_order_by(published.desc())
103       .limit(FETCH_LIMIT_MAX)
104       .load::<Self>(conn)
105       .await
106   }
107
108   pub async fn permadelete_for_creator(
109     pool: &DbPool,
110     for_creator_id: PersonId,
111   ) -> Result<Vec<Self>, Error> {
112     let conn = &mut get_conn(pool).await?;
113
114     let perma_deleted = "*Permananently Deleted*";
115     let perma_deleted_url = "https://deleted.com";
116
117     diesel::update(post.filter(creator_id.eq(for_creator_id)))
118       .set((
119         name.eq(perma_deleted),
120         url.eq(perma_deleted_url),
121         body.eq(perma_deleted),
122         deleted.eq(true),
123         updated.eq(naive_now()),
124       ))
125       .get_results::<Self>(conn)
126       .await
127   }
128
129   pub async fn update_removed_for_creator(
130     pool: &DbPool,
131     for_creator_id: PersonId,
132     for_community_id: Option<CommunityId>,
133     new_removed: bool,
134   ) -> Result<Vec<Self>, Error> {
135     let conn = &mut get_conn(pool).await?;
136
137     let mut update = diesel::update(post).into_boxed();
138     update = update.filter(creator_id.eq(for_creator_id));
139
140     if let Some(for_community_id) = for_community_id {
141       update = update.filter(community_id.eq(for_community_id));
142     }
143
144     update
145       .set((removed.eq(new_removed), updated.eq(naive_now())))
146       .get_results::<Self>(conn)
147       .await
148   }
149
150   pub fn is_post_creator(person_id: PersonId, post_creator_id: PersonId) -> bool {
151     person_id == post_creator_id
152   }
153
154   pub async fn read_from_apub_id(pool: &DbPool, object_id: Url) -> Result<Option<Self>, Error> {
155     let conn = &mut get_conn(pool).await?;
156     let object_id: DbUrl = object_id.into();
157     Ok(
158       post
159         .filter(ap_id.eq(object_id))
160         .first::<Post>(conn)
161         .await
162         .ok()
163         .map(Into::into),
164     )
165   }
166
167   pub async fn fetch_pictrs_posts_for_creator(
168     pool: &DbPool,
169     for_creator_id: PersonId,
170   ) -> Result<Vec<Self>, Error> {
171     let conn = &mut get_conn(pool).await?;
172     let pictrs_search = "%pictrs/image%";
173
174     post
175       .filter(creator_id.eq(for_creator_id))
176       .filter(url.like(pictrs_search))
177       .load::<Self>(conn)
178       .await
179   }
180
181   /// Sets the url and thumbnails fields to None
182   pub async fn remove_pictrs_post_images_and_thumbnails_for_creator(
183     pool: &DbPool,
184     for_creator_id: PersonId,
185   ) -> Result<Vec<Self>, Error> {
186     let conn = &mut get_conn(pool).await?;
187     let pictrs_search = "%pictrs/image%";
188
189     diesel::update(
190       post
191         .filter(creator_id.eq(for_creator_id))
192         .filter(url.like(pictrs_search)),
193     )
194     .set((
195       url.eq::<Option<String>>(None),
196       thumbnail_url.eq::<Option<String>>(None),
197     ))
198     .get_results::<Self>(conn)
199     .await
200   }
201
202   pub async fn fetch_pictrs_posts_for_community(
203     pool: &DbPool,
204     for_community_id: CommunityId,
205   ) -> Result<Vec<Self>, Error> {
206     let conn = &mut get_conn(pool).await?;
207     let pictrs_search = "%pictrs/image%";
208     post
209       .filter(community_id.eq(for_community_id))
210       .filter(url.like(pictrs_search))
211       .load::<Self>(conn)
212       .await
213   }
214
215   /// Sets the url and thumbnails fields to None
216   pub async fn remove_pictrs_post_images_and_thumbnails_for_community(
217     pool: &DbPool,
218     for_community_id: CommunityId,
219   ) -> Result<Vec<Self>, Error> {
220     let conn = &mut get_conn(pool).await?;
221     let pictrs_search = "%pictrs/image%";
222
223     diesel::update(
224       post
225         .filter(community_id.eq(for_community_id))
226         .filter(url.like(pictrs_search)),
227     )
228     .set((
229       url.eq::<Option<String>>(None),
230       thumbnail_url.eq::<Option<String>>(None),
231     ))
232     .get_results::<Self>(conn)
233     .await
234   }
235 }
236
237 #[async_trait]
238 impl Likeable for PostLike {
239   type Form = PostLikeForm;
240   type IdType = PostId;
241   async fn like(pool: &DbPool, post_like_form: &PostLikeForm) -> Result<Self, Error> {
242     use crate::schema::post_like::dsl::{person_id, post_id, post_like};
243     let conn = &mut get_conn(pool).await?;
244     insert_into(post_like)
245       .values(post_like_form)
246       .on_conflict((post_id, person_id))
247       .do_update()
248       .set(post_like_form)
249       .get_result::<Self>(conn)
250       .await
251   }
252   async fn remove(pool: &DbPool, person_id: PersonId, post_id: PostId) -> Result<usize, Error> {
253     use crate::schema::post_like::dsl;
254     let conn = &mut get_conn(pool).await?;
255     diesel::delete(
256       dsl::post_like
257         .filter(dsl::post_id.eq(post_id))
258         .filter(dsl::person_id.eq(person_id)),
259     )
260     .execute(conn)
261     .await
262   }
263 }
264
265 #[async_trait]
266 impl Saveable for PostSaved {
267   type Form = PostSavedForm;
268   async fn save(pool: &DbPool, post_saved_form: &PostSavedForm) -> Result<Self, Error> {
269     use crate::schema::post_saved::dsl::{person_id, post_id, post_saved};
270     let conn = &mut get_conn(pool).await?;
271     insert_into(post_saved)
272       .values(post_saved_form)
273       .on_conflict((post_id, person_id))
274       .do_update()
275       .set(post_saved_form)
276       .get_result::<Self>(conn)
277       .await
278   }
279   async fn unsave(pool: &DbPool, post_saved_form: &PostSavedForm) -> Result<usize, Error> {
280     use crate::schema::post_saved::dsl::{person_id, post_id, post_saved};
281     let conn = &mut get_conn(pool).await?;
282     diesel::delete(
283       post_saved
284         .filter(post_id.eq(post_saved_form.post_id))
285         .filter(person_id.eq(post_saved_form.person_id)),
286     )
287     .execute(conn)
288     .await
289   }
290 }
291
292 #[async_trait]
293 impl Readable for PostRead {
294   type Form = PostReadForm;
295   async fn mark_as_read(pool: &DbPool, post_read_form: &PostReadForm) -> Result<Self, Error> {
296     use crate::schema::post_read::dsl::{person_id, post_id, post_read};
297     let conn = &mut get_conn(pool).await?;
298     insert_into(post_read)
299       .values(post_read_form)
300       .on_conflict((post_id, person_id))
301       .do_update()
302       .set(post_read_form)
303       .get_result::<Self>(conn)
304       .await
305   }
306
307   async fn mark_as_unread(pool: &DbPool, post_read_form: &PostReadForm) -> Result<usize, Error> {
308     use crate::schema::post_read::dsl::{person_id, post_id, post_read};
309     let conn = &mut get_conn(pool).await?;
310     diesel::delete(
311       post_read
312         .filter(post_id.eq(post_read_form.post_id))
313         .filter(person_id.eq(post_read_form.person_id)),
314     )
315     .execute(conn)
316     .await
317   }
318 }
319
320 #[cfg(test)]
321 mod tests {
322   use crate::{
323     source::{
324       community::{Community, CommunityInsertForm},
325       instance::Instance,
326       person::{Person, PersonInsertForm},
327       post::{
328         Post,
329         PostInsertForm,
330         PostLike,
331         PostLikeForm,
332         PostRead,
333         PostReadForm,
334         PostSaved,
335         PostSavedForm,
336         PostUpdateForm,
337       },
338     },
339     traits::{Crud, Likeable, Readable, Saveable},
340     utils::build_db_pool_for_tests,
341   };
342   use serial_test::serial;
343
344   #[tokio::test]
345   #[serial]
346   async fn test_crud() {
347     let pool = &build_db_pool_for_tests().await;
348
349     let inserted_instance = Instance::read_or_create(pool, "my_domain.tld".to_string())
350       .await
351       .unwrap();
352
353     let new_person = PersonInsertForm::builder()
354       .name("jim".into())
355       .public_key("pubkey".to_string())
356       .instance_id(inserted_instance.id)
357       .build();
358
359     let inserted_person = Person::create(pool, &new_person).await.unwrap();
360
361     let new_community = CommunityInsertForm::builder()
362       .name("test community_3".to_string())
363       .title("nada".to_owned())
364       .public_key("pubkey".to_string())
365       .instance_id(inserted_instance.id)
366       .build();
367
368     let inserted_community = Community::create(pool, &new_community).await.unwrap();
369
370     let new_post = PostInsertForm::builder()
371       .name("A test post".into())
372       .creator_id(inserted_person.id)
373       .community_id(inserted_community.id)
374       .build();
375
376     let inserted_post = Post::create(pool, &new_post).await.unwrap();
377
378     let expected_post = Post {
379       id: inserted_post.id,
380       name: "A test post".into(),
381       url: None,
382       body: None,
383       creator_id: inserted_person.id,
384       community_id: inserted_community.id,
385       published: inserted_post.published,
386       removed: false,
387       locked: false,
388       nsfw: false,
389       deleted: false,
390       updated: None,
391       embed_title: None,
392       embed_description: None,
393       embed_video_url: None,
394       thumbnail_url: None,
395       ap_id: inserted_post.ap_id.clone(),
396       local: true,
397       language_id: Default::default(),
398       featured_community: false,
399       featured_local: false,
400     };
401
402     // Post Like
403     let post_like_form = PostLikeForm {
404       post_id: inserted_post.id,
405       person_id: inserted_person.id,
406       score: 1,
407     };
408
409     let inserted_post_like = PostLike::like(pool, &post_like_form).await.unwrap();
410
411     let expected_post_like = PostLike {
412       id: inserted_post_like.id,
413       post_id: inserted_post.id,
414       person_id: inserted_person.id,
415       published: inserted_post_like.published,
416       score: 1,
417     };
418
419     // Post Save
420     let post_saved_form = PostSavedForm {
421       post_id: inserted_post.id,
422       person_id: inserted_person.id,
423     };
424
425     let inserted_post_saved = PostSaved::save(pool, &post_saved_form).await.unwrap();
426
427     let expected_post_saved = PostSaved {
428       id: inserted_post_saved.id,
429       post_id: inserted_post.id,
430       person_id: inserted_person.id,
431       published: inserted_post_saved.published,
432     };
433
434     // Post Read
435     let post_read_form = PostReadForm {
436       post_id: inserted_post.id,
437       person_id: inserted_person.id,
438     };
439
440     let inserted_post_read = PostRead::mark_as_read(pool, &post_read_form).await.unwrap();
441
442     let expected_post_read = PostRead {
443       id: inserted_post_read.id,
444       post_id: inserted_post.id,
445       person_id: inserted_person.id,
446       published: inserted_post_read.published,
447     };
448
449     let read_post = Post::read(pool, inserted_post.id).await.unwrap();
450
451     let new_post_update = PostUpdateForm::builder()
452       .name(Some("A test post".into()))
453       .build();
454     let updated_post = Post::update(pool, inserted_post.id, &new_post_update)
455       .await
456       .unwrap();
457
458     let like_removed = PostLike::remove(pool, inserted_person.id, inserted_post.id)
459       .await
460       .unwrap();
461     let saved_removed = PostSaved::unsave(pool, &post_saved_form).await.unwrap();
462     let read_removed = PostRead::mark_as_unread(pool, &post_read_form)
463       .await
464       .unwrap();
465     let num_deleted = Post::delete(pool, inserted_post.id).await.unwrap();
466     Community::delete(pool, inserted_community.id)
467       .await
468       .unwrap();
469     Person::delete(pool, inserted_person.id).await.unwrap();
470     Instance::delete(pool, inserted_instance.id).await.unwrap();
471
472     assert_eq!(expected_post, read_post);
473     assert_eq!(expected_post, inserted_post);
474     assert_eq!(expected_post, updated_post);
475     assert_eq!(expected_post_like, inserted_post_like);
476     assert_eq!(expected_post_saved, inserted_post_saved);
477     assert_eq!(expected_post_read, inserted_post_read);
478     assert_eq!(1, like_removed);
479     assert_eq!(1, saved_removed);
480     assert_eq!(1, read_removed);
481     assert_eq!(1, num_deleted);
482   }
483 }