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When banning a user, remove communities they've created (#1700)
- Fixes #1659
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@ -19,6 +19,7 @@ use lemmy_db_queries::{
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from_opt_str_to_opt_enum,
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source::{
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comment::Comment_,
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community::Community_,
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local_user::LocalUser_,
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password_reset_request::PasswordResetRequest_,
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person::Person_,
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@ -33,6 +34,7 @@ use lemmy_db_schema::{
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naive_now,
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source::{
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comment::Comment,
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community::Community,
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local_user::{LocalUser, LocalUserForm},
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moderator::*,
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password_reset_request::*,
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@ -51,6 +53,7 @@ use lemmy_db_views::{
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};
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use lemmy_db_views_actor::{
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community_follower_view::CommunityFollowerView,
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community_moderator_view::CommunityModeratorView,
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person_mention_view::{PersonMentionQueryBuilder, PersonMentionView},
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person_view::PersonViewSafe,
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};
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@ -408,8 +411,24 @@ impl Perform for BanPerson {
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// Communities
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// Remove all communities where they're the top mod
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// TODO couldn't get group by's working in diesel,
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// for now, remove the communities manually
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let first_mod_communities = blocking(context.pool(), move |conn: &'_ _| {
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CommunityModeratorView::get_community_first_mods(conn)
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})
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.await??;
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// Filter to only this banned users top communities
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let banned_user_first_communities: Vec<CommunityModeratorView> = first_mod_communities
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.into_iter()
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.filter(|fmc| fmc.moderator.id == banned_person_id)
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.collect();
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for first_mod_community in banned_user_first_communities {
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blocking(context.pool(), move |conn: &'_ _| {
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Community::update_removed(conn, first_mod_community.community.id, true)
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})
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.await??;
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}
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// Comments
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blocking(context.pool(), move |conn: &'_ _| {
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@ -49,6 +49,28 @@ impl CommunityModeratorView {
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Ok(Self::from_tuple_to_vec(res))
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}
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/// Finds all communities first mods / creators
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/// Ideally this should be a group by, but diesel doesn't support it yet
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pub fn get_community_first_mods(conn: &PgConnection) -> Result<Vec<Self>, Error> {
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let res = community_moderator::table
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.inner_join(community::table)
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.inner_join(person::table)
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.select((
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Community::safe_columns_tuple(),
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Person::safe_columns_tuple(),
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))
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// A hacky workaround instead of group_bys
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// https://stackoverflow.com/questions/24042359/how-to-join-only-one-row-in-joined-table-with-postgres
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.distinct_on(community_moderator::community_id)
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.order_by((
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community_moderator::community_id,
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community_moderator::person_id,
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))
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.load::<CommunityModeratorViewTuple>(conn)?;
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Ok(Self::from_tuple_to_vec(res))
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}
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}
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impl ViewToVec for CommunityModeratorView {
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