crates/db_views_moderator/src/mod_remove_post_view.rs

   1 use crate::structs::{ModRemovePostView, ModlogListParams};
   2 use diesel::{result::Error, *};
   3 use lemmy_db_schema::{
   4   newtypes::PersonId,
   5   schema::{community, mod_remove_post, person, post},
   6   source::{
   7     community::{Community, CommunitySafe},
   8     moderator::ModRemovePost,
   9     person::{Person, PersonSafe},
  10     post::Post,
  11   },
  12   traits::{ToSafe, ViewToVec},
  13   utils::limit_and_offset,
  14 };
  15
  16 type ModRemovePostViewTuple = (ModRemovePost, Option<PersonSafe>, Post, CommunitySafe);
  17
  18 impl ModRemovePostView {
  19   pub fn list(conn: &mut PgConnection, params: ModlogListParams) -> Result<Vec<Self>, Error> {
  20     let person_alias_1 = diesel::alias!(person as person1);
  21     let admin_person_id_join = params.mod_person_id.unwrap_or(PersonId(-1));
  22     let show_mod_names = !params.hide_modlog_names;
  23     let show_mod_names_expr = show_mod_names.as_sql::<diesel::sql_types::Bool>();
  24
  25     let admin_names_join = mod_remove_post::mod_person_id
  26       .eq(person::id)
  27       .and(show_mod_names_expr.or(person::id.eq(admin_person_id_join)));
  28     let mut query = mod_remove_post::table
  29       .left_join(person::table.on(admin_names_join))
  30       .inner_join(post::table)
  31       .inner_join(community::table.on(post::community_id.eq(community::id)))
  32       .inner_join(person_alias_1.on(post::creator_id.eq(person_alias_1.field(person::id))))
  33       .select((
  34         mod_remove_post::all_columns,
  35         Person::safe_columns_tuple().nullable(),
  36         post::all_columns,
  37         Community::safe_columns_tuple(),
  38       ))
  39       .into_boxed();
  40
  41     if let Some(community_id) = params.community_id {
  42       query = query.filter(post::community_id.eq(community_id));
  43     };
  44
  45     if let Some(mod_person_id) = params.mod_person_id {
  46       query = query.filter(mod_remove_post::mod_person_id.eq(mod_person_id));
  47     };
  48
  49     if let Some(other_person_id) = params.other_person_id {
  50       query = query.filter(person_alias_1.field(person::id).eq(other_person_id));
  51     };
  52
  53     let (limit, offset) = limit_and_offset(params.page, params.limit)?;
  54
  55     let res = query
  56       .limit(limit)
  57       .offset(offset)
  58       .order_by(mod_remove_post::when_.desc())
  59       .load::<ModRemovePostViewTuple>(conn)?;
  60
  61     let results = Self::from_tuple_to_vec(res);
  62     Ok(results)
  63   }
  64 }
  65
  66 impl ViewToVec for ModRemovePostView {
  67   type DbTuple = ModRemovePostViewTuple;
  68   fn from_tuple_to_vec(items: Vec<Self::DbTuple>) -> Vec<Self> {
  69     items
  70       .into_iter()
  71       .map(|a| Self {
  72         mod_remove_post: a.0,
  73         moderator: a.1,
  74         post: a.2,
  75         community: a.3,
  76       })
  77       .collect::<Vec<Self>>()
  78   }
  79 }