lemmy_db/src/source/comment.rs

   1 use super::post::Post;
   2 use crate::{
   3   naive_now,
   4   schema::{comment, comment_alias_1, comment_like, comment_saved},
   5   ApubObject,
   6   Crud,
   7   Likeable,
   8   Saveable,
   9 };
  10 use diesel::{dsl::*, result::Error, *};
  11 use serde::Serialize;
  12 use url::{ParseError, Url};
  13
  14 // WITH RECURSIVE MyTree AS (
  15 //     SELECT * FROM comment WHERE parent_id IS NULL
  16 //     UNION ALL
  17 //     SELECT m.* FROM comment AS m JOIN MyTree AS t ON m.parent_id = t.id
  18 // )
  19 // SELECT * FROM MyTree;
  20
  21 #[derive(Clone, Queryable, Associations, Identifiable, PartialEq, Debug, Serialize)]
  22 #[belongs_to(Post)]
  23 #[table_name = "comment"]
  24 pub struct Comment {
  25   pub id: i32,
  26   pub creator_id: i32,
  27   pub post_id: i32,
  28   pub parent_id: Option<i32>,
  29   pub content: String,
  30   pub removed: bool,
  31   pub read: bool, // Whether the recipient has read the comment or not
  32   pub published: chrono::NaiveDateTime,
  33   pub updated: Option<chrono::NaiveDateTime>,
  34   pub deleted: bool,
  35   pub ap_id: String,
  36   pub local: bool,
  37 }
  38
  39 #[derive(Clone, Queryable, Associations, Identifiable, PartialEq, Debug, Serialize)]
  40 #[belongs_to(Post)]
  41 #[table_name = "comment_alias_1"]
  42 pub struct CommentAlias1 {
  43   pub id: i32,
  44   pub creator_id: i32,
  45   pub post_id: i32,
  46   pub parent_id: Option<i32>,
  47   pub content: String,
  48   pub removed: bool,
  49   pub read: bool, // Whether the recipient has read the comment or not
  50   pub published: chrono::NaiveDateTime,
  51   pub updated: Option<chrono::NaiveDateTime>,
  52   pub deleted: bool,
  53   pub ap_id: String,
  54   pub local: bool,
  55 }
  56
  57 #[derive(Insertable, AsChangeset, Clone)]
  58 #[table_name = "comment"]
  59 pub struct CommentForm {
  60   pub creator_id: i32,
  61   pub post_id: i32,
  62   pub parent_id: Option<i32>,
  63   pub content: String,
  64   pub removed: Option<bool>,
  65   pub read: Option<bool>,
  66   pub published: Option<chrono::NaiveDateTime>,
  67   pub updated: Option<chrono::NaiveDateTime>,
  68   pub deleted: Option<bool>,
  69   pub ap_id: Option<String>,
  70   pub local: bool,
  71 }
  72
  73 impl CommentForm {
  74   pub fn get_ap_id(&self) -> Result<Url, ParseError> {
  75     Url::parse(&self.ap_id.as_ref().unwrap_or(&"not_a_url".to_string()))
  76   }
  77 }
  78
  79 impl Crud<CommentForm> for Comment {
  80   fn read(conn: &PgConnection, comment_id: i32) -> Result<Self, Error> {
  81     use crate::schema::comment::dsl::*;
  82     comment.find(comment_id).first::<Self>(conn)
  83   }
  84
  85   fn delete(conn: &PgConnection, comment_id: i32) -> Result<usize, Error> {
  86     use crate::schema::comment::dsl::*;
  87     diesel::delete(comment.find(comment_id)).execute(conn)
  88   }
  89
  90   fn create(conn: &PgConnection, comment_form: &CommentForm) -> Result<Self, Error> {
  91     use crate::schema::comment::dsl::*;
  92     insert_into(comment)
  93       .values(comment_form)
  94       .get_result::<Self>(conn)
  95   }
  96
  97   fn update(
  98     conn: &PgConnection,
  99     comment_id: i32,
 100     comment_form: &CommentForm,
 101   ) -> Result<Self, Error> {
 102     use crate::schema::comment::dsl::*;
 103     diesel::update(comment.find(comment_id))
 104       .set(comment_form)
 105       .get_result::<Self>(conn)
 106   }
 107 }
 108
 109 impl ApubObject<CommentForm> for Comment {
 110   fn read_from_apub_id(conn: &PgConnection, object_id: &str) -> Result<Self, Error> {
 111     use crate::schema::comment::dsl::*;
 112     comment.filter(ap_id.eq(object_id)).first::<Self>(conn)
 113   }
 114
 115   fn upsert(conn: &PgConnection, comment_form: &CommentForm) -> Result<Self, Error> {
 116     use crate::schema::comment::dsl::*;
 117     insert_into(comment)
 118       .values(comment_form)
 119       .on_conflict(ap_id)
 120       .do_update()
 121       .set(comment_form)
 122       .get_result::<Self>(conn)
 123   }
 124 }
 125
 126 impl Comment {
 127   pub fn update_ap_id(
 128     conn: &PgConnection,
 129     comment_id: i32,
 130     apub_id: String,
 131   ) -> Result<Self, Error> {
 132     use crate::schema::comment::dsl::*;
 133
 134     diesel::update(comment.find(comment_id))
 135       .set(ap_id.eq(apub_id))
 136       .get_result::<Self>(conn)
 137   }
 138
 139   pub fn permadelete_for_creator(
 140     conn: &PgConnection,
 141     for_creator_id: i32,
 142   ) -> Result<Vec<Self>, Error> {
 143     use crate::schema::comment::dsl::*;
 144     diesel::update(comment.filter(creator_id.eq(for_creator_id)))
 145       .set((
 146         content.eq("*Permananently Deleted*"),
 147         deleted.eq(true),
 148         updated.eq(naive_now()),
 149       ))
 150       .get_results::<Self>(conn)
 151   }
 152
 153   pub fn update_deleted(
 154     conn: &PgConnection,
 155     comment_id: i32,
 156     new_deleted: bool,
 157   ) -> Result<Self, Error> {
 158     use crate::schema::comment::dsl::*;
 159     diesel::update(comment.find(comment_id))
 160       .set((deleted.eq(new_deleted), updated.eq(naive_now())))
 161       .get_result::<Self>(conn)
 162   }
 163
 164   pub fn update_removed(
 165     conn: &PgConnection,
 166     comment_id: i32,
 167     new_removed: bool,
 168   ) -> Result<Self, Error> {
 169     use crate::schema::comment::dsl::*;
 170     diesel::update(comment.find(comment_id))
 171       .set((removed.eq(new_removed), updated.eq(naive_now())))
 172       .get_result::<Self>(conn)
 173   }
 174
 175   pub fn update_removed_for_creator(
 176     conn: &PgConnection,
 177     for_creator_id: i32,
 178     new_removed: bool,
 179   ) -> Result<Vec<Self>, Error> {
 180     use crate::schema::comment::dsl::*;
 181     diesel::update(comment.filter(creator_id.eq(for_creator_id)))
 182       .set((removed.eq(new_removed), updated.eq(naive_now())))
 183       .get_results::<Self>(conn)
 184   }
 185
 186   pub fn update_read(conn: &PgConnection, comment_id: i32, new_read: bool) -> Result<Self, Error> {
 187     use crate::schema::comment::dsl::*;
 188     diesel::update(comment.find(comment_id))
 189       .set(read.eq(new_read))
 190       .get_result::<Self>(conn)
 191   }
 192
 193   pub fn update_content(
 194     conn: &PgConnection,
 195     comment_id: i32,
 196     new_content: &str,
 197   ) -> Result<Self, Error> {
 198     use crate::schema::comment::dsl::*;
 199     diesel::update(comment.find(comment_id))
 200       .set((content.eq(new_content), updated.eq(naive_now())))
 201       .get_result::<Self>(conn)
 202   }
 203 }
 204
 205 #[derive(Identifiable, Queryable, Associations, PartialEq, Debug, Clone)]
 206 #[belongs_to(Comment)]
 207 #[table_name = "comment_like"]
 208 pub struct CommentLike {
 209   pub id: i32,
 210   pub user_id: i32,
 211   pub comment_id: i32,
 212   pub post_id: i32, // TODO this is redundant
 213   pub score: i16,
 214   pub published: chrono::NaiveDateTime,
 215 }
 216
 217 #[derive(Insertable, AsChangeset, Clone)]
 218 #[table_name = "comment_like"]
 219 pub struct CommentLikeForm {
 220   pub user_id: i32,
 221   pub comment_id: i32,
 222   pub post_id: i32, // TODO this is redundant
 223   pub score: i16,
 224 }
 225
 226 impl Likeable<CommentLikeForm> for CommentLike {
 227   fn like(conn: &PgConnection, comment_like_form: &CommentLikeForm) -> Result<Self, Error> {
 228     use crate::schema::comment_like::dsl::*;
 229     insert_into(comment_like)
 230       .values(comment_like_form)
 231       .on_conflict((comment_id, user_id))
 232       .do_update()
 233       .set(comment_like_form)
 234       .get_result::<Self>(conn)
 235   }
 236   fn remove(conn: &PgConnection, user_id: i32, comment_id: i32) -> Result<usize, Error> {
 237     use crate::schema::comment_like::dsl;
 238     diesel::delete(
 239       dsl::comment_like
 240         .filter(dsl::comment_id.eq(comment_id))
 241         .filter(dsl::user_id.eq(user_id)),
 242     )
 243     .execute(conn)
 244   }
 245 }
 246
 247 #[derive(Identifiable, Queryable, Associations, PartialEq, Debug)]
 248 #[belongs_to(Comment)]
 249 #[table_name = "comment_saved"]
 250 pub struct CommentSaved {
 251   pub id: i32,
 252   pub comment_id: i32,
 253   pub user_id: i32,
 254   pub published: chrono::NaiveDateTime,
 255 }
 256
 257 #[derive(Insertable, AsChangeset)]
 258 #[table_name = "comment_saved"]
 259 pub struct CommentSavedForm {
 260   pub comment_id: i32,
 261   pub user_id: i32,
 262 }
 263
 264 impl Saveable<CommentSavedForm> for CommentSaved {
 265   fn save(conn: &PgConnection, comment_saved_form: &CommentSavedForm) -> Result<Self, Error> {
 266     use crate::schema::comment_saved::dsl::*;
 267     insert_into(comment_saved)
 268       .values(comment_saved_form)
 269       .on_conflict((comment_id, user_id))
 270       .do_update()
 271       .set(comment_saved_form)
 272       .get_result::<Self>(conn)
 273   }
 274   fn unsave(conn: &PgConnection, comment_saved_form: &CommentSavedForm) -> Result<usize, Error> {
 275     use crate::schema::comment_saved::dsl::*;
 276     diesel::delete(
 277       comment_saved
 278         .filter(comment_id.eq(comment_saved_form.comment_id))
 279         .filter(user_id.eq(comment_saved_form.user_id)),
 280     )
 281     .execute(conn)
 282   }
 283 }
 284
 285 #[cfg(test)]
 286 mod tests {
 287   use crate::{
 288     source::{comment::*, community::*, post::*, user::*},
 289     tests::establish_unpooled_connection,
 290     Crud,
 291     ListingType,
 292     SortType,
 293   };
 294
 295   #[test]
 296   fn test_crud() {
 297     let conn = establish_unpooled_connection();
 298
 299     let new_user = UserForm {
 300       name: "terry".into(),
 301       preferred_username: None,
 302       password_encrypted: "nope".into(),
 303       email: None,
 304       matrix_user_id: None,
 305       avatar: None,
 306       banner: None,
 307       admin: false,
 308       banned: Some(false),
 309       published: None,
 310       updated: None,
 311       show_nsfw: false,
 312       theme: "browser".into(),
 313       default_sort_type: SortType::Hot as i16,
 314       default_listing_type: ListingType::Subscribed as i16,
 315       lang: "browser".into(),
 316       show_avatars: true,
 317       send_notifications_to_email: false,
 318       actor_id: None,
 319       bio: None,
 320       local: true,
 321       private_key: None,
 322       public_key: None,
 323       last_refreshed_at: None,
 324     };
 325
 326     let inserted_user = User_::create(&conn, &new_user).unwrap();
 327
 328     let new_community = CommunityForm {
 329       name: "test community".to_string(),
 330       title: "nada".to_owned(),
 331       description: None,
 332       category_id: 1,
 333       creator_id: inserted_user.id,
 334       removed: None,
 335       deleted: None,
 336       updated: None,
 337       nsfw: false,
 338       actor_id: None,
 339       local: true,
 340       private_key: None,
 341       public_key: None,
 342       last_refreshed_at: None,
 343       published: None,
 344       banner: None,
 345       icon: None,
 346     };
 347
 348     let inserted_community = Community::create(&conn, &new_community).unwrap();
 349
 350     let new_post = PostForm {
 351       name: "A test post".into(),
 352       creator_id: inserted_user.id,
 353       url: None,
 354       body: None,
 355       community_id: inserted_community.id,
 356       removed: None,
 357       deleted: None,
 358       locked: None,
 359       stickied: None,
 360       updated: None,
 361       nsfw: false,
 362       embed_title: None,
 363       embed_description: None,
 364       embed_html: None,
 365       thumbnail_url: None,
 366       ap_id: None,
 367       local: true,
 368       published: None,
 369     };
 370
 371     let inserted_post = Post::create(&conn, &new_post).unwrap();
 372
 373     let comment_form = CommentForm {
 374       content: "A test comment".into(),
 375       creator_id: inserted_user.id,
 376       post_id: inserted_post.id,
 377       removed: None,
 378       deleted: None,
 379       read: None,
 380       parent_id: None,
 381       published: None,
 382       updated: None,
 383       ap_id: None,
 384       local: true,
 385     };
 386
 387     let inserted_comment = Comment::create(&conn, &comment_form).unwrap();
 388
 389     let expected_comment = Comment {
 390       id: inserted_comment.id,
 391       content: "A test comment".into(),
 392       creator_id: inserted_user.id,
 393       post_id: inserted_post.id,
 394       removed: false,
 395       deleted: false,
 396       read: false,
 397       parent_id: None,
 398       published: inserted_comment.published,
 399       updated: None,
 400       ap_id: inserted_comment.ap_id.to_owned(),
 401       local: true,
 402     };
 403
 404     let child_comment_form = CommentForm {
 405       content: "A child comment".into(),
 406       creator_id: inserted_user.id,
 407       post_id: inserted_post.id,
 408       parent_id: Some(inserted_comment.id),
 409       removed: None,
 410       deleted: None,
 411       read: None,
 412       published: None,
 413       updated: None,
 414       ap_id: None,
 415       local: true,
 416     };
 417
 418     let inserted_child_comment = Comment::create(&conn, &child_comment_form).unwrap();
 419
 420     // Comment Like
 421     let comment_like_form = CommentLikeForm {
 422       comment_id: inserted_comment.id,
 423       post_id: inserted_post.id,
 424       user_id: inserted_user.id,
 425       score: 1,
 426     };
 427
 428     let inserted_comment_like = CommentLike::like(&conn, &comment_like_form).unwrap();
 429
 430     let expected_comment_like = CommentLike {
 431       id: inserted_comment_like.id,
 432       comment_id: inserted_comment.id,
 433       post_id: inserted_post.id,
 434       user_id: inserted_user.id,
 435       published: inserted_comment_like.published,
 436       score: 1,
 437     };
 438
 439     // Comment Saved
 440     let comment_saved_form = CommentSavedForm {
 441       comment_id: inserted_comment.id,
 442       user_id: inserted_user.id,
 443     };
 444
 445     let inserted_comment_saved = CommentSaved::save(&conn, &comment_saved_form).unwrap();
 446
 447     let expected_comment_saved = CommentSaved {
 448       id: inserted_comment_saved.id,
 449       comment_id: inserted_comment.id,
 450       user_id: inserted_user.id,
 451       published: inserted_comment_saved.published,
 452     };
 453
 454     let read_comment = Comment::read(&conn, inserted_comment.id).unwrap();
 455     let updated_comment = Comment::update(&conn, inserted_comment.id, &comment_form).unwrap();
 456     let like_removed = CommentLike::remove(&conn, inserted_user.id, inserted_comment.id).unwrap();
 457     let saved_removed = CommentSaved::unsave(&conn, &comment_saved_form).unwrap();
 458     let num_deleted = Comment::delete(&conn, inserted_comment.id).unwrap();
 459     Comment::delete(&conn, inserted_child_comment.id).unwrap();
 460     Post::delete(&conn, inserted_post.id).unwrap();
 461     Community::delete(&conn, inserted_community.id).unwrap();
 462     User_::delete(&conn, inserted_user.id).unwrap();
 463
 464     assert_eq!(expected_comment, read_comment);
 465     assert_eq!(expected_comment, inserted_comment);
 466     assert_eq!(expected_comment, updated_comment);
 467     assert_eq!(expected_comment_like, inserted_comment_like);
 468     assert_eq!(expected_comment_saved, inserted_comment_saved);
 469     assert_eq!(
 470       expected_comment.id,
 471       inserted_child_comment.parent_id.unwrap()
 472     );
 473     assert_eq!(1, like_removed);
 474     assert_eq!(1, saved_removed);
 475     assert_eq!(1, num_deleted);
 476   }
 477 }