1 files changed, 386 insertions, 0 deletions
diff --git a/server/lemmy_db/src/comment.rs b/server/lemmy_db/src/comment.rs
new file mode 100644
index 00000000..602070d5
--- /dev/null
+++ b/server/lemmy_db/src/comment.rs
@@ -0,0 +1,386 @@
+use super::{post::Post, *};
+use crate::schema::{comment, comment_like, comment_saved};
+
+// WITH RECURSIVE MyTree AS (
+//     SELECT * FROM comment WHERE parent_id IS NULL
+//     UNION ALL
+//     SELECT m.* FROM comment AS m JOIN MyTree AS t ON m.parent_id = t.id
+// )
+// SELECT * FROM MyTree;
+
+#[derive(Clone, Queryable, Associations, Identifiable, PartialEq, Debug, Serialize, Deserialize)]
+#[belongs_to(Post)]
+#[table_name = "comment"]
+pub struct Comment {
+  pub id: i32,
+  pub creator_id: i32,
+  pub post_id: i32,
+  pub parent_id: Option<i32>,
+  pub content: String,
+  pub removed: bool,
+  pub read: bool, // Whether the recipient has read the comment or not
+  pub published: chrono::NaiveDateTime,
+  pub updated: Option<chrono::NaiveDateTime>,
+  pub deleted: bool,
+  pub ap_id: String,
+  pub local: bool,
+}
+
+#[derive(Insertable, AsChangeset, Clone)]
+#[table_name = "comment"]
+pub struct CommentForm {
+  pub creator_id: i32,
+  pub post_id: i32,
+  pub parent_id: Option<i32>,
+  pub content: String,
+  pub removed: Option<bool>,
+  pub read: Option<bool>,
+  pub published: Option<chrono::NaiveDateTime>,
+  pub updated: Option<chrono::NaiveDateTime>,
+  pub deleted: Option<bool>,
+  pub ap_id: String,
+  pub local: bool,
+}
+
+impl Crud<CommentForm> for Comment {
+  fn read(conn: &PgConnection, comment_id: i32) -> Result<Self, Error> {
+    use crate::schema::comment::dsl::*;
+    comment.find(comment_id).first::<Self>(conn)
+  }
+
+  fn delete(conn: &PgConnection, comment_id: i32) -> Result<usize, Error> {
+    use crate::schema::comment::dsl::*;
+    diesel::delete(comment.find(comment_id)).execute(conn)
+  }
+
+  fn create(conn: &PgConnection, comment_form: &CommentForm) -> Result<Self, Error> {
+    use crate::schema::comment::dsl::*;
+    insert_into(comment)
+      .values(comment_form)
+      .get_result::<Self>(conn)
+  }
+
+  fn update(
+    conn: &PgConnection,
+    comment_id: i32,
+    comment_form: &CommentForm,
+  ) -> Result<Self, Error> {
+    use crate::schema::comment::dsl::*;
+    diesel::update(comment.find(comment_id))
+      .set(comment_form)
+      .get_result::<Self>(conn)
+  }
+}
+
+impl Comment {
+  pub fn update_ap_id(
+    conn: &PgConnection,
+    comment_id: i32,
+    apub_id: String,
+  ) -> Result<Self, Error> {
+    use crate::schema::comment::dsl::*;
+
+    diesel::update(comment.find(comment_id))
+      .set(ap_id.eq(apub_id))
+      .get_result::<Self>(conn)
+  }
+
+  pub fn read_from_apub_id(conn: &PgConnection, object_id: &str) -> Result<Self, Error> {
+    use crate::schema::comment::dsl::*;
+    comment.filter(ap_id.eq(object_id)).first::<Self>(conn)
+  }
+
+  pub fn mark_as_read(conn: &PgConnection, comment_id: i32) -> Result<Self, Error> {
+    use crate::schema::comment::dsl::*;
+
+    diesel::update(comment.find(comment_id))
+      .set(read.eq(true))
+      .get_result::<Self>(conn)
+  }
+
+  pub fn permadelete(conn: &PgConnection, comment_id: i32) -> Result<Self, Error> {
+    use crate::schema::comment::dsl::*;
+
+    diesel::update(comment.find(comment_id))
+      .set((
+        content.eq("*Permananently Deleted*"),
+        deleted.eq(true),
+        updated.eq(naive_now()),
+      ))
+      .get_result::<Self>(conn)
+  }
+}
+
+#[derive(Identifiable, Queryable, Associations, PartialEq, Debug, Clone)]
+#[belongs_to(Comment)]
+#[table_name = "comment_like"]
+pub struct CommentLike {
+  pub id: i32,
+  pub user_id: i32,
+  pub comment_id: i32,
+  pub post_id: i32,
+  pub score: i16,
+  pub published: chrono::NaiveDateTime,
+}
+
+#[derive(Insertable, AsChangeset, Clone)]
+#[table_name = "comment_like"]
+pub struct CommentLikeForm {
+  pub user_id: i32,
+  pub comment_id: i32,
+  pub post_id: i32,
+  pub score: i16,
+}
+
+impl Likeable<CommentLikeForm> for CommentLike {
+  fn read(conn: &PgConnection, comment_id_from: i32) -> Result<Vec<Self>, Error> {
+    use crate::schema::comment_like::dsl::*;
+    comment_like
+      .filter(comment_id.eq(comment_id_from))
+      .load::<Self>(conn)
+  }
+
+  fn like(conn: &PgConnection, comment_like_form: &CommentLikeForm) -> Result<Self, Error> {
+    use crate::schema::comment_like::dsl::*;
+    insert_into(comment_like)
+      .values(comment_like_form)
+      .get_result::<Self>(conn)
+  }
+  fn remove(conn: &PgConnection, comment_like_form: &CommentLikeForm) -> Result<usize, Error> {
+    use crate::schema::comment_like::dsl::*;
+    diesel::delete(
+      comment_like
+        .filter(comment_id.eq(comment_like_form.comment_id))
+        .filter(user_id.eq(comment_like_form.user_id)),
+    )
+    .execute(conn)
+  }
+}
+
+impl CommentLike {
+  pub fn from_post(conn: &PgConnection, post_id_from: i32) -> Result<Vec<Self>, Error> {
+    use crate::schema::comment_like::dsl::*;
+    comment_like
+      .filter(post_id.eq(post_id_from))
+      .load::<Self>(conn)
+  }
+}
+
+#[derive(Identifiable, Queryable, Associations, PartialEq, Debug)]
+#[belongs_to(Comment)]
+#[table_name = "comment_saved"]
+pub struct CommentSaved {
+  pub id: i32,
+  pub comment_id: i32,
+  pub user_id: i32,
+  pub published: chrono::NaiveDateTime,
+}
+
+#[derive(Insertable, AsChangeset, Clone)]
+#[table_name = "comment_saved"]
+pub struct CommentSavedForm {
+  pub comment_id: i32,
+  pub user_id: i32,
+}
+
+impl Saveable<CommentSavedForm> for CommentSaved {
+  fn save(conn: &PgConnection, comment_saved_form: &CommentSavedForm) -> Result<Self, Error> {
+    use crate::schema::comment_saved::dsl::*;
+    insert_into(comment_saved)
+      .values(comment_saved_form)
+      .get_result::<Self>(conn)
+  }
+  fn unsave(conn: &PgConnection, comment_saved_form: &CommentSavedForm) -> Result<usize, Error> {
+    use crate::schema::comment_saved::dsl::*;
+    diesel::delete(
+      comment_saved
+        .filter(comment_id.eq(comment_saved_form.comment_id))
+        .filter(user_id.eq(comment_saved_form.user_id)),
+    )
+    .execute(conn)
+  }
+}
+
+#[cfg(test)]
+mod tests {
+  use crate::{comment::*, community::*, post::*, tests::establish_unpooled_connection, user::*};
+
+  #[test]
+  fn test_crud() {
+    let conn = establish_unpooled_connection();
+
+    let new_user = UserForm {
+      name: "terry".into(),
+      preferred_username: None,
+      password_encrypted: "nope".into(),
+      email: None,
+      matrix_user_id: None,
+      avatar: None,
+      admin: false,
+      banned: false,
+      updated: None,
+      show_nsfw: false,
+      theme: "darkly".into(),
+      default_sort_type: SortType::Hot as i16,
+      default_listing_type: ListingType::Subscribed as i16,
+      lang: "browser".into(),
+      show_avatars: true,
+      send_notifications_to_email: false,
+      actor_id: "http://fake.com".into(),
+      bio: None,
+      local: true,
+      private_key: None,
+      public_key: None,
+      last_refreshed_at: None,
+    };
+
+    let inserted_user = User_::create(&conn, &new_user).unwrap();
+
+    let new_community = CommunityForm {
+      name: "test community".to_string(),
+      title: "nada".to_owned(),
+      description: None,
+      category_id: 1,
+      creator_id: inserted_user.id,
+      removed: None,
+      deleted: None,
+      updated: None,
+      nsfw: false,
+      actor_id: "http://fake.com".into(),
+      local: true,
+      private_key: None,
+      public_key: None,
+      last_refreshed_at: None,
+      published: None,
+    };
+
+    let inserted_community = Community::create(&conn, &new_community).unwrap();
+
+    let new_post = PostForm {
+      name: "A test post".into(),
+      creator_id: inserted_user.id,
+      url: None,
+      body: None,
+      community_id: inserted_community.id,
+      removed: None,
+      deleted: None,
+      locked: None,
+      stickied: None,
+      updated: None,
+      nsfw: false,
+      embed_title: None,
+      embed_description: None,
+      embed_html: None,
+      thumbnail_url: None,
+      ap_id: "http://fake.com".into(),
+      local: true,
+      published: None,
+    };
+
+    let inserted_post = Post::create(&conn, &new_post).unwrap();
+
+    let comment_form = CommentForm {
+      content: "A test comment".into(),
+      creator_id: inserted_user.id,
+      post_id: inserted_post.id,
+      removed: None,
+      deleted: None,
+      read: None,
+      parent_id: None,
+      published: None,
+      updated: None,
+      ap_id: "http://fake.com".into(),
+      local: true,
+    };
+
+    let inserted_comment = Comment::create(&conn, &comment_form).unwrap();
+
+    let expected_comment = Comment {
+      id: inserted_comment.id,
+      content: "A test comment".into(),
+      creator_id: inserted_user.id,
+      post_id: inserted_post.id,
+      removed: false,
+      deleted: false,
+      read: false,
+      parent_id: None,
+      published: inserted_comment.published,
+      updated: None,
+      ap_id: "http://fake.com".into(),
+      local: true,
+    };
+
+    let child_comment_form = CommentForm {
+      content: "A child comment".into(),
+      creator_id: inserted_user.id,
+      post_id: inserted_post.id,
+      parent_id: Some(inserted_comment.id),
+      removed: None,
+      deleted: None,
+      read: None,
+      published: None,
+      updated: None,
+      ap_id: "http://fake.com".into(),
+      local: true,
+    };
+
+    let inserted_child_comment = Comment::create(&conn, &child_comment_form).unwrap();
+
+    // Comment Like
+    let comment_like_form = CommentLikeForm {
+      comment_id: inserted_comment.id,
+      post_id: inserted_post.id,
+      user_id: inserted_user.id,
+      score: 1,
+    };
+
+    let inserted_comment_like = CommentLike::like(&conn, &comment_like_form).unwrap();
+
+    let expected_comment_like = CommentLike {
+      id: inserted_comment_like.id,
+      comment_id: inserted_comment.id,
+      post_id: inserted_post.id,
+      user_id: inserted_user.id,
+      published: inserted_comment_like.published,
+      score: 1,
+    };
+
+    // Comment Saved
+    let comment_saved_form = CommentSavedForm {
+      comment_id: inserted_comment.id,
+      user_id: inserted_user.id,
+    };
+
+    let inserted_comment_saved = CommentSaved::save(&conn, &comment_saved_form).unwrap();
+
+    let expected_comment_saved = CommentSaved {
+      id: inserted_comment_saved.id,
+      comment_id: inserted_comment.id,
+      user_id: inserted_user.id,
+      published: inserted_comment_saved.published,
+    };
+
+    let read_comment = Comment::read(&conn, inserted_comment.id).unwrap();
+    let updated_comment = Comment::update(&conn, inserted_comment.id, &comment_form).unwrap();
+    let like_removed = CommentLike::remove(&conn, &comment_like_form).unwrap();
+    let saved_removed = CommentSaved::unsave(&conn, &comment_saved_form).unwrap();
+    let num_deleted = Comment::delete(&conn, inserted_comment.id).unwrap();
+    Comment::delete(&conn, inserted_child_comment.id).unwrap();
+    Post::delete(&conn, inserted_post.id).unwrap();
+    Community::delete(&conn, inserted_community.id).unwrap();
+    User_::delete(&conn, inserted_user.id).unwrap();
+
+    assert_eq!(expected_comment, read_comment);
+    assert_eq!(expected_comment, inserted_comment);
+    assert_eq!(expected_comment, updated_comment);
+    assert_eq!(expected_comment_like, inserted_comment_like);
+    assert_eq!(expected_comment_saved, inserted_comment_saved);
+    assert_eq!(
+      expected_comment.id,
+      inserted_child_comment.parent_id.unwrap()
+    );
+    assert_eq!(1, like_removed);
+    assert_eq!(1, saved_removed);
+    assert_eq!(1, num_deleted);
+  }
+}