MM-19336 Migrated GetMembersByIds and GetMembersByChannelIds to Squirrel (#19728)

* Ported GetMembersByIds and GetMembersByChannelIds to Squirrel

* Added checks for empty ID lists

* Updated GetAllChannelMembersById to use Squirrel

* Added a method to get the query placeholder directly

* Migrated UpdateMultipleMembers to use a Squirrel query

* Migrated UpdateMultipleMembers to Squirrel

* Initialize a prepared query builder for channelMembersForTeamWithSchemeSelectQuery

* Migrated GetMembersForUser to Squirrel

* Slight improvement for constructMySQLJSONArgs

* Migrated UpdateMemberNotifyProps to Squirrel

* Migrated GetMembers to Squirrel

* Migrated GetMember to Squirrel

* Avoid shadowing err

* Don't set query builder on copy of SqlChannelStore

* Fixed typo in error message

* Fixed missing elipsis

* Shorter SQL generation for GetAllChannelMembersById

* Don't unnecessarily copy the reference

* Use a function to generate the ChannelMember map

* Avoid shadowing err

* Don't use IN for matching multiple possible values

* Initialize the members lists

* Remove check for empty channelIDs list

* Fixed test and removed check for empty list

* Use err2 rather than eerr

Co-authored-by: Tim Scheuermann <tim@plusmid.dev>
Co-authored-by: Mattermod <mattermod@users.noreply.github.com>

store/sqlstore/store.go

@@ -961,11 +961,14 @@ func (ss *SqlStore) DropAllTables() {
 }
 
 func (ss *SqlStore) getQueryBuilder() sq.StatementBuilderType {
-	builder := sq.StatementBuilder.PlaceholderFormat(sq.Question)
+	return sq.StatementBuilder.PlaceholderFormat(ss.getQueryPlaceholder())
+}
+
+func (ss *SqlStore) getQueryPlaceholder() sq.PlaceholderFormat {
 	if ss.DriverName() == model.DatabaseDriverPostgres {
-		builder = builder.PlaceholderFormat(sq.Dollar)
+		return sq.Dollar
 	}
-	return builder
+	return sq.Question
 }
 
 // getSubQueryBuilder is necessary to generate the SQL query and args to pass to sub-queries because squirrel does not support WHERE clause in sub-queries.