use receiver and collection in public linked type

findonflow · Feb 1, 2024 · ebdb001 · ebdb001
1 parent 912407f
commit ebdb001
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Showing 6 changed files with 18 additions and 15 deletions.
diff --git a/contracts/ExampleNFT.cdc b/contracts/ExampleNFT.cdc
@@ -312,7 +312,7 @@ access(all) contract ExampleNFT: NonFungibleToken {
         self.account.storage.save(<-collection, to: defaultStoragePath)
 
         // create a public capability for the collection
-        let collectionCap = self.account.capabilities.storage.issue<&ExampleNFT.Collection>(defaultStoragePath)
+        let collectionCap = self.account.capabilities.storage.issue<&{NonFungibleToken.Receiver, NonFungibleToken.Collection}>(defaultStoragePath)
         self.account.capabilities.publish(collectionCap, at: defaultPublicPath)
 
         // Create a Minter resource and save it to storage

diff --git a/contracts/MetadataViews.cdc b/contracts/MetadataViews.cdc
@@ -623,6 +623,9 @@ access(all) contract MetadataViews {
             publicLinkedType: Type,
             createEmptyCollectionFunction: fun(): @{NonFungibleToken.Collection}
         ) {
+            pre {
+                publicLinkedType.isSubtype(of: Type<&{NonFungibleToken.Receiver}>()): "Public type must include NonFungibleToken.Receiver interface."
+            }
             self.storagePath=storagePath
             self.publicPath=publicPath
             self.publicCollection=publicCollection

diff --git a/lib/go/contracts/internal/assets/assets.go b/lib/go/contracts/internal/assets/assets.go
diff --git a/lib/go/templates/internal/assets/assets.go b/lib/go/templates/internal/assets/assets.go
diff --git a/transactions/setup_account.cdc b/transactions/setup_account.cdc
@@ -25,7 +25,7 @@ transaction {
 
         // create a public capability for the collection
         signer.capabilities.unpublish(collectionData.publicPath)
-        let collectionCap = signer.capabilities.storage.issue<&ExampleNFT.Collection>(collectionData.storagePath)
+        let collectionCap = signer.capabilities.storage.issue<&{NonFungibleToken.Receiver, NonFungibleToken.Collection}>(collectionData.storagePath)
         signer.capabilities.publish(collectionCap, at: collectionData.publicPath)
     }
 }
diff --git a/transactions/setup_account_from_nft_reference.cdc b/transactions/setup_account_from_nft_reference.cdc
@@ -24,7 +24,7 @@ transaction(address: Address, publicPath: PublicPath, id: UInt64) {
         signer.storage.save(<-emptyCollection, to: collectionData.storagePath)
 
         // create a public capability for the collection
-        let collectionCap = signer.capabilities.storage.issue<&{NonFungibleToken.Collection}>(
+        let collectionCap = signer.capabilities.storage.issue<&{NonFungibleToken.Receiver, NonFungibleToken.Collection}>(
                 collectionData.storagePath
             )
         signer.capabilities.publish(collectionCap, at: publicPath)