crates/db_views_moderator/src/mod_remove_comment_view.rs

   1 use crate::structs::{ModRemoveCommentView, ModlogListParams};
   2 use diesel::{
   3   result::Error,
   4   BoolExpressionMethods,
   5   ExpressionMethods,
   6   IntoSql,
   7   JoinOnDsl,
   8   NullableExpressionMethods,
   9   QueryDsl,
  10 };
  11 use diesel_async::RunQueryDsl;
  12 use lemmy_db_schema::{
  13   newtypes::PersonId,
  14   schema::{comment, community, mod_remove_comment, person, post},
  15   source::{
  16     comment::Comment,
  17     community::Community,
  18     moderator::ModRemoveComment,
  19     person::Person,
  20     post::Post,
  21   },
  22   traits::JoinView,
  23   utils::{get_conn, limit_and_offset, DbPool},
  24 };
  25
  26 type ModRemoveCommentViewTuple = (
  27   ModRemoveComment,
  28   Option<Person>,
  29   Comment,
  30   Person,
  31   Post,
  32   Community,
  33 );
  34
  35 impl ModRemoveCommentView {
  36   pub async fn list(pool: &DbPool, params: ModlogListParams) -> Result<Vec<Self>, Error> {
  37     let conn = &mut get_conn(pool).await?;
  38     let person_alias_1 = diesel::alias!(lemmy_db_schema::schema::person as person1);
  39     let admin_person_id_join = params.mod_person_id.unwrap_or(PersonId(-1));
  40     let show_mod_names = !params.hide_modlog_names;
  41     let show_mod_names_expr = show_mod_names.as_sql::<diesel::sql_types::Bool>();
  42
  43     let admin_names_join = mod_remove_comment::mod_person_id
  44       .eq(person::id)
  45       .and(show_mod_names_expr.or(person::id.eq(admin_person_id_join)));
  46     let mut query = mod_remove_comment::table
  47       .left_join(person::table.on(admin_names_join))
  48       .inner_join(comment::table)
  49       .inner_join(person_alias_1.on(comment::creator_id.eq(person_alias_1.field(person::id))))
  50       .inner_join(post::table.on(comment::post_id.eq(post::id)))
  51       .inner_join(community::table.on(post::community_id.eq(community::id)))
  52       .select((
  53         mod_remove_comment::all_columns,
  54         person::all_columns.nullable(),
  55         comment::all_columns,
  56         person_alias_1.fields(person::all_columns),
  57         post::all_columns,
  58         community::all_columns,
  59       ))
  60       .into_boxed();
  61
  62     if let Some(community_id) = params.community_id {
  63       query = query.filter(post::community_id.eq(community_id));
  64     };
  65
  66     if let Some(mod_person_id) = params.mod_person_id {
  67       query = query.filter(mod_remove_comment::mod_person_id.eq(mod_person_id));
  68     };
  69
  70     if let Some(other_person_id) = params.other_person_id {
  71       query = query.filter(person_alias_1.field(person::id).eq(other_person_id));
  72     };
  73
  74     let (limit, offset) = limit_and_offset(params.page, params.limit)?;
  75
  76     let res = query
  77       .limit(limit)
  78       .offset(offset)
  79       .order_by(mod_remove_comment::when_.desc())
  80       .load::<ModRemoveCommentViewTuple>(conn)
  81       .await?;
  82
  83     let results = res.into_iter().map(Self::from_tuple).collect();
  84     Ok(results)
  85   }
  86 }
  87
  88 impl JoinView for ModRemoveCommentView {
  89   type JoinTuple = ModRemoveCommentViewTuple;
  90   fn from_tuple(a: Self::JoinTuple) -> Self {
  91     Self {
  92       mod_remove_comment: a.0,
  93       moderator: a.1,
  94       comment: a.2,
  95       commenter: a.3,
  96       post: a.4,
  97       community: a.5,
  98     }
  99   }
 100 }