lemmy_db/src/source/comment.rs

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