crates/api_crud/src/community/read.rs

   1 use crate::PerformCrud;
   2 use actix_web::web::Data;
   3 use lemmy_api_common::{blocking, community::*, get_local_user_view_from_jwt_opt};
   4 use lemmy_db_queries::{source::community::Community_, ListingType, SortType};
   5 use lemmy_db_schema::source::community::*;
   6 use lemmy_db_views_actor::{
   7   community_moderator_view::CommunityModeratorView,
   8   community_view::{CommunityQueryBuilder, CommunityView},
   9 };
  10 use lemmy_utils::{ApiError, ConnectionId, LemmyError};
  11 use lemmy_websocket::{messages::GetCommunityUsersOnline, LemmyContext};
  12 use std::str::FromStr;
  13
  14 #[async_trait::async_trait(?Send)]
  15 impl PerformCrud for GetCommunity {
  16   type Response = GetCommunityResponse;
  17
  18   async fn perform(
  19     &self,
  20     context: &Data<LemmyContext>,
  21     _websocket_id: Option<ConnectionId>,
  22   ) -> Result<GetCommunityResponse, LemmyError> {
  23     let data: &GetCommunity = &self;
  24     let local_user_view = get_local_user_view_from_jwt_opt(&data.auth, context.pool()).await?;
  25     let person_id = local_user_view.map(|u| u.person.id);
  26
  27     let community_id = match data.id {
  28       Some(id) => id,
  29       None => {
  30         let name = data.name.to_owned().unwrap_or_else(|| "main".to_string());
  31         match blocking(context.pool(), move |conn| {
  32           Community::read_from_name(conn, &name)
  33         })
  34         .await?
  35         {
  36           Ok(community) => community,
  37           Err(_e) => return Err(ApiError::err("couldnt_find_community").into()),
  38         }
  39         .id
  40       }
  41     };
  42
  43     let community_view = match blocking(context.pool(), move |conn| {
  44       CommunityView::read(conn, community_id, person_id)
  45     })
  46     .await?
  47     {
  48       Ok(community) => community,
  49       Err(_e) => return Err(ApiError::err("couldnt_find_community").into()),
  50     };
  51
  52     let moderators: Vec<CommunityModeratorView> = match blocking(context.pool(), move |conn| {
  53       CommunityModeratorView::for_community(conn, community_id)
  54     })
  55     .await?
  56     {
  57       Ok(moderators) => moderators,
  58       Err(_e) => return Err(ApiError::err("couldnt_find_community").into()),
  59     };
  60
  61     let online = context
  62       .chat_server()
  63       .send(GetCommunityUsersOnline { community_id })
  64       .await
  65       .unwrap_or(1);
  66
  67     let res = GetCommunityResponse {
  68       community_view,
  69       moderators,
  70       online,
  71     };
  72
  73     // Return the jwt
  74     Ok(res)
  75   }
  76 }
  77
  78 #[async_trait::async_trait(?Send)]
  79 impl PerformCrud for ListCommunities {
  80   type Response = ListCommunitiesResponse;
  81
  82   async fn perform(
  83     &self,
  84     context: &Data<LemmyContext>,
  85     _websocket_id: Option<ConnectionId>,
  86   ) -> Result<ListCommunitiesResponse, LemmyError> {
  87     let data: &ListCommunities = &self;
  88     let local_user_view = get_local_user_view_from_jwt_opt(&data.auth, context.pool()).await?;
  89
  90     let person_id = local_user_view.to_owned().map(|l| l.person.id);
  91
  92     // Don't show NSFW by default
  93     let show_nsfw = match &local_user_view {
  94       Some(uv) => uv.local_user.show_nsfw,
  95       None => false,
  96     };
  97
  98     let type_ = ListingType::from_str(&data.type_)?;
  99     let sort = SortType::from_str(&data.sort)?;
 100
 101     let page = data.page;
 102     let limit = data.limit;
 103     let communities = blocking(context.pool(), move |conn| {
 104       CommunityQueryBuilder::create(conn)
 105         .listing_type(&type_)
 106         .sort(&sort)
 107         .show_nsfw(show_nsfw)
 108         .my_person_id(person_id)
 109         .page(page)
 110         .limit(limit)
 111         .list()
 112     })
 113     .await??;
 114
 115     // Return the jwt
 116     Ok(ListCommunitiesResponse { communities })
 117   }
 118 }