Add previous value to GuildUpdateEvent (#394)

kordlib · Sep 23, 2021 · a059a59 · a059a59
1 parent 75bd98a
commit a059a59
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Showing 2 changed files with 3 additions and 2 deletions.
diff --git a/core/src/main/kotlin/event/guild/GuildUpdateEvent.kt b/core/src/main/kotlin/event/guild/GuildUpdateEvent.kt
@@ -4,7 +4,7 @@ import dev.kord.core.Kord
 import dev.kord.core.entity.Guild
 import dev.kord.core.event.Event
 
-class GuildUpdateEvent(val guild: Guild, override val shard: Int) : Event {
+class GuildUpdateEvent(val guild: Guild, val old: Guild?, override val shard: Int) : Event {
     override val kord: Kord get() = guild.kord
     override fun toString(): String {
         return "GuildUpdateEvent(guild=$guild, shard=$shard)"

diff --git a/core/src/main/kotlin/gateway/handler/GuildEventHandler.kt b/core/src/main/kotlin/gateway/handler/GuildEventHandler.kt
@@ -87,10 +87,11 @@ internal class GuildEventHandler(
 
     private suspend fun handle(event: GuildUpdate, shard: Int) {
         val data = GuildData.from(event.guild)
+        val old = cache.query<GuildData> { idEq(GuildData::id, event.guild.id) }.singleOrNull()
         cache.put(data)
         event.guild.cache()
 
-        coreFlow.emit(GuildUpdateEvent(Guild(data, kord), shard))
+        coreFlow.emit(GuildUpdateEvent(Guild(data, kord), old?.let { Guild(it, kord) }, shard))
     }
 
     private suspend fun handle(event: GuildDelete, shard: Int) = with(event.guild) {