discord.js - Imagine ❄•15mo ago

channelUpdate compare permissions

Hey there, I tried using the channelUpdate event to get the difference between the old permissions and the new channel permissions. There is a slight issue though. Upon using this line to check if the permissions are changed, it always logs false in console, making the permissions check basically usesless.

if(oldChannel.permissionOverwrites.cache == newChannel.permissionOverwrites.cache){
console.log(true)
} else console.log(false)

// it always shows false in this case

if(oldChannel.permissionOverwrites.cache == newChannel.permissionOverwrites.cache){
console.log(true)
} else console.log(false)

// it always shows false in this case

7 Replies

d.js toolkit•15mo ago

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d.js docs•15mo ago

Collection#difference() The difference method returns a new structure containing items where the key is present in one of the original structures but not the other.

TehPigOP•15mo ago

So by changing the if condition to

if(oldChannel.permissionOverwrites.cache.difference(newChannel.permissionOverwrites.cache)){
console.log(true)
} else console.log(false)

if(oldChannel.permissionOverwrites.cache.difference(newChannel.permissionOverwrites.cache)){
console.log(true)
} else console.log(false)

should log true instead? because once I tried it and changed the slowmode of the channel, it logged true in console

treble/luna•15mo ago

an empty collection is truthy

TehPigOP•15mo ago

it would not find the case where a permission is changed instead though it's not empty though

treble/luna•15mo ago

regardless, that if statement will always return true

TehPigOP•15mo ago

old permissions [{"id":"835417069490274344","type":0,"allow":"34628193280","deny":"344134254608"},{"id":"753224027899822160","type":0,"allow":"536871936","deny":"0"}] new permissions [{"id":"753224027899822160","type":0,"allow":"1024","deny":"536870912"},{"id":"835417069490274344","type":0,"allow":"34628193280","deny":"344134254608"}] (using JSON.stringify()) ah in order to detect the change correct? welp, i get the same collection regardless of permission/slowmode changes

 Collection(2) [Map] {
  '835417069490274344' => PermissionOverwrites {
    id: '835417069490274344',
    type: 0,
    deny: PermissionsBitField { bitfield: 343597383696n },
    allow: PermissionsBitField { bitfield: 35165064192n }
  },
  '753224027899822160' => PermissionOverwrites {
    id: '753224027899822160',
    type: 0,
    deny: PermissionsBitField { bitfield: 536870912n },
    allow: PermissionsBitField { bitfield: 1024n }
  }
}

 Collection(2) [Map] {
  '835417069490274344' => PermissionOverwrites {
    id: '835417069490274344',
    type: 0,
    deny: PermissionsBitField { bitfield: 343597383696n },
    allow: PermissionsBitField { bitfield: 35165064192n }
  },
  '753224027899822160' => PermissionOverwrites {
    id: '753224027899822160',
    type: 0,
    deny: PermissionsBitField { bitfield: 536870912n },
    allow: PermissionsBitField { bitfield: 1024n }
  }
}

The issue which prevents the old permissions to be the same as the new permissions upon slowmode change is just the fact that the permissions are given in different positions within the array I removed .difference it did not affect the result the changed permissions is just me testing if the check actually works

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channelUpdate compare permissions