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shawntabrizi · Jul 31, 2024 · e273ed1 · e273ed1
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diff --git a/src/1/README.md b/src/1/README.md
@@ -17,6 +17,7 @@
 <div class="tab">
 <button class="subtab tablinks file-source file-added active" onclick="switchSubTab(event, 'Cargo.toml')" data-id="Cargo.toml">Cargo.toml</button>
 <button class="subtab tablinks file-source file-added" onclick="switchSubTab(event, 'rustfmt.toml')" data-id="rustfmt.toml">rustfmt.toml</button>
+<button class="subtab tablinks file-source file-added" onclick="switchSubTab(event, 'src/impls.rs')" data-id="src/impls.rs">src/impls.rs</button>
 <button class="subtab tablinks file-source file-added" onclick="switchSubTab(event, 'src/lib.rs')" data-id="src/lib.rs">src/lib.rs</button>
 </div>
 <div id="source/Cargo.toml" class="subtab tabcontent active" data-id="Cargo.toml">
@@ -35,6 +36,14 @@
 
 </div>
 
+<div id="source/src/impls.rs" class="subtab tabcontent" data-id="src/impls.rs">
+
+```rust
+{{#include ./source/src/impls.rs}}
+```
+
+</div>
+
 <div id="source/src/lib.rs" class="subtab tabcontent" data-id="src/lib.rs">
 
 ```rust

diff --git a/src/1/source/changes.diff b/src/1/source/changes.diff
@@ -4069,14 +4069,31 @@ index 0000000..c342153
 +# Format comments
 +comment_width = 100
 +wrap_comments = true
+diff --git a/src/impls.rs b/src/impls.rs
+new file mode 100644
+index 0000000..d49f793
+--- /dev/null
++++ b/src/impls.rs
+@@ -0,0 +1,9 @@
++use super::*;
++use frame_support::pallet_prelude::*;
++
++impl<T: Config> Pallet<T> {
++	pub fn mint(owner: T::AccountId) -> DispatchResult {
++		Self::deposit_event(Event::<T>::Created { owner });
++		Ok(())
++	}
++}
 diff --git a/src/lib.rs b/src/lib.rs
 new file mode 100644
-index 0000000..8b9507e
+index 0000000..f846f0b
 --- /dev/null
 +++ b/src/lib.rs
-@@ -0,0 +1,43 @@
+@@ -0,0 +1,38 @@
 +#![cfg_attr(not(feature = "std"), no_std)]
 +
++mod impls;
++
 +pub use pallet::*;
 +
 +#[frame_support::pallet(dev_mode)]
@@ -4110,11 +4127,4 @@ index 0000000..8b9507e
 +			Ok(())
 +		}
 +	}
-+
-+	impl<T: Config> Pallet<T> {
-+		fn mint(owner: T::AccountId) -> DispatchResult {
-+			Self::deposit_event(Event::<T>::Created { owner });
-+			Ok(())
-+		}
-+	}
 +}
diff --git a/src/1/source/src/impls.rs b/src/1/source/src/impls.rs
@@ -0,0 +1,9 @@
+use super::*;
+use frame_support::pallet_prelude::*;
+
+impl<T: Config> Pallet<T> {
+	pub fn mint(owner: T::AccountId) -> DispatchResult {
+		Self::deposit_event(Event::<T>::Created { owner });
+		Ok(())
+	}
+}
diff --git a/src/1/source/src/lib.rs b/src/1/source/src/lib.rs
@@ -1,5 +1,7 @@
 #![cfg_attr(not(feature = "std"), no_std)]
 
+mod impls;
+
 pub use pallet::*;
 
 #[frame_support::pallet(dev_mode)]
@@ -33,11 +35,4 @@ pub mod pallet {
 			Ok(())
 		}
 	}
-
-	impl<T: Config> Pallet<T> {
-		fn mint(owner: T::AccountId) -> DispatchResult {
-			Self::deposit_event(Event::<T>::Created { owner });
-			Ok(())
-		}
-	}
 }
diff --git a/src/10/README.md b/src/10/README.md
@@ -17,12 +17,12 @@
 <div id="Template" class="maintab tabcontent active">
 
 <div class="tab">
-<button class="subtab tablinks file-template file-modified active" onclick="switchSubTab(event, 'src/lib.rs')" data-id="src/lib.rs">src/lib.rs</button>
+<button class="subtab tablinks file-template file-modified active" onclick="switchSubTab(event, 'src/impls.rs')" data-id="src/impls.rs">src/impls.rs</button>
 </div>
-<div id="template/src/lib.rs" class="subtab tabcontent active" data-id="src/lib.rs">
+<div id="template/src/impls.rs" class="subtab tabcontent active" data-id="src/impls.rs">
 
 ```rust
-{{#include ./template/src/lib.rs}}
+{{#include ./template/src/impls.rs}}
 ```
 
 </div>
@@ -34,12 +34,12 @@
 <div id="Solution" class="maintab tabcontent">
 
 <div class="tab">
-<button class="subtab tablinks file-solution file-modified active" onclick="switchSubTab(event, 'src/lib.rs')" data-id="src/lib.rs">src/lib.rs</button>
+<button class="subtab tablinks file-solution file-modified active" onclick="switchSubTab(event, 'src/impls.rs')" data-id="src/impls.rs">src/impls.rs</button>
 </div>
-<div id="solution/src/lib.rs" class="subtab tabcontent active" data-id="src/lib.rs">
+<div id="solution/src/impls.rs" class="subtab tabcontent active" data-id="src/impls.rs">
 
 ```rust
-{{#include ./solution/src/lib.rs}}
+{{#include ./solution/src/impls.rs}}
 ```
 
 </div>

diff --git a/src/10/solution/solution.diff b/src/10/solution/solution.diff
@@ -1,20 +1,20 @@
-diff --git a/src/lib.rs b/src/lib.rs
-index 356e547..59a65fe 100644
---- a/src/lib.rs
-+++ b/src/lib.rs
-@@ -49,12 +49,9 @@ pub mod pallet {
- 	impl<T: Config> Pallet<T> {
- 		// Learn about `AccountId`.
- 		fn mint(owner: T::AccountId) -> DispatchResult {
--			/* TODO:
--				- `get` the current count of kitties.
--				- `unwrap_or` set the count to `0`.
--				- increment the count by one.
--				- `set` the new count of kitties.
--			*/
-+			let current_count: u64 = CountForKitties::<T>::get().unwrap_or(0);
-+			let new_count = current_count + 1;
-+			CountForKitties::<T>::set(Some(new_count));
- 			Self::deposit_event(Event::<T>::Created { owner });
- 			Ok(())
- 		}
+diff --git a/src/impls.rs b/src/impls.rs
+index 67fd2a0..ef53a56 100644
+--- a/src/impls.rs
++++ b/src/impls.rs
+@@ -4,12 +4,9 @@ use frame_support::pallet_prelude::*;
+ impl<T: Config> Pallet<T> {
+ 	// Learn about `AccountId`.
+ 	pub fn mint(owner: T::AccountId) -> DispatchResult {
+-		/* TODO:
+-			- `get` the current count of kitties.
+-			- `unwrap_or` set the count to `0`.
+-			- increment the count by one.
+-			- `set` the new count of kitties.
+-		*/
++		let current_count: u64 = CountForKitties::<T>::get().unwrap_or(0);
++		let new_count = current_count + 1;
++		CountForKitties::<T>::set(Some(new_count));
+ 		Self::deposit_event(Event::<T>::Created { owner });
+ 		Ok(())
+ 	}
diff --git a/src/10/solution/src/impls.rs b/src/10/solution/src/impls.rs
@@ -0,0 +1,13 @@
+use super::*;
+use frame_support::pallet_prelude::*;
+
+impl<T: Config> Pallet<T> {
+	// Learn about `AccountId`.
+	pub fn mint(owner: T::AccountId) -> DispatchResult {
+		let current_count: u64 = CountForKitties::<T>::get().unwrap_or(0);
+		let new_count = current_count + 1;
+		CountForKitties::<T>::set(Some(new_count));
+		Self::deposit_event(Event::<T>::Created { owner });
+		Ok(())
+	}
+}
diff --git a/src/10/solution/src/lib.rs b/src/10/solution/src/lib.rs
@@ -1,5 +1,7 @@
 #![cfg_attr(not(feature = "std"), no_std)]
 
+mod impls;
+
 pub use pallet::*;
 
 // Learn about Macros used in the `polkadot-sdk`, making pallet development easier.
@@ -44,16 +46,4 @@ pub mod pallet {
 			Ok(())
 		}
 	}
-
-	// Learn about internal functions.
-	impl<T: Config> Pallet<T> {
-		// Learn about `AccountId`.
-		fn mint(owner: T::AccountId) -> DispatchResult {
-			let current_count: u64 = CountForKitties::<T>::get().unwrap_or(0);
-			let new_count = current_count + 1;
-			CountForKitties::<T>::set(Some(new_count));
-			Self::deposit_event(Event::<T>::Created { owner });
-			Ok(())
-		}
-	}
 }
diff --git a/src/10/template/src/impls.rs b/src/10/template/src/impls.rs
@@ -0,0 +1,16 @@
+use super::*;
+use frame_support::pallet_prelude::*;
+
+impl<T: Config> Pallet<T> {
+	// Learn about `AccountId`.
+	pub fn mint(owner: T::AccountId) -> DispatchResult {
+		/* TODO:
+			- `get` the current count of kitties.
+			- `unwrap_or` set the count to `0`.
+			- increment the count by one.
+			- `set` the new count of kitties.
+		*/
+		Self::deposit_event(Event::<T>::Created { owner });
+		Ok(())
+	}
+}
diff --git a/src/10/template/src/lib.rs b/src/10/template/src/lib.rs
@@ -1,5 +1,7 @@
 #![cfg_attr(not(feature = "std"), no_std)]
 
+mod impls;
+
 pub use pallet::*;
 
 // Learn about Macros used in the `polkadot-sdk`, making pallet development easier.
@@ -44,19 +46,4 @@ pub mod pallet {
 			Ok(())
 		}
 	}
-
-	// Learn about internal functions.
-	impl<T: Config> Pallet<T> {
-		// Learn about `AccountId`.
-		fn mint(owner: T::AccountId) -> DispatchResult {
-			/* TODO:
-				- `get` the current count of kitties.
-				- `unwrap_or` set the count to `0`.
-				- increment the count by one.
-				- `set` the new count of kitties.
-			*/
-			Self::deposit_event(Event::<T>::Created { owner });
-			Ok(())
-		}
-	}
 }
diff --git a/src/10/template/template.diff b/src/10/template/template.diff
@@ -1,17 +1,17 @@
-diff --git a/src/lib.rs b/src/lib.rs
-index 67dd167..356e547 100644
---- a/src/lib.rs
-+++ b/src/lib.rs
-@@ -49,6 +49,12 @@ pub mod pallet {
- 	impl<T: Config> Pallet<T> {
- 		// Learn about `AccountId`.
- 		fn mint(owner: T::AccountId) -> DispatchResult {
-+			/* TODO:
-+				- `get` the current count of kitties.
-+				- `unwrap_or` set the count to `0`.
-+				- increment the count by one.
-+				- `set` the new count of kitties.
-+			*/
- 			Self::deposit_event(Event::<T>::Created { owner });
- 			Ok(())
- 		}
+diff --git a/src/impls.rs b/src/impls.rs
+index 869c781..67fd2a0 100644
+--- a/src/impls.rs
++++ b/src/impls.rs
+@@ -4,6 +4,12 @@ use frame_support::pallet_prelude::*;
+ impl<T: Config> Pallet<T> {
+ 	// Learn about `AccountId`.
+ 	pub fn mint(owner: T::AccountId) -> DispatchResult {
++		/* TODO:
++			- `get` the current count of kitties.
++			- `unwrap_or` set the count to `0`.
++			- increment the count by one.
++			- `set` the new count of kitties.
++		*/
+ 		Self::deposit_event(Event::<T>::Created { owner });
+ 		Ok(())
+ 	}
diff --git a/src/11/README.md b/src/11/README.md
@@ -17,9 +17,18 @@
 <div id="Template" class="maintab tabcontent active">
 
 <div class="tab">
-<button class="subtab tablinks file-template file-modified active" onclick="switchSubTab(event, 'src/lib.rs')" data-id="src/lib.rs">src/lib.rs</button>
+<button class="subtab tablinks file-template file-modified active" onclick="switchSubTab(event, 'src/impls.rs')" data-id="src/impls.rs">src/impls.rs</button>
+<button class="subtab tablinks file-template file-modified" onclick="switchSubTab(event, 'src/lib.rs')" data-id="src/lib.rs">src/lib.rs</button>
 </div>
-<div id="template/src/lib.rs" class="subtab tabcontent active" data-id="src/lib.rs">
+<div id="template/src/impls.rs" class="subtab tabcontent active" data-id="src/impls.rs">
+
+```rust
+{{#include ./template/src/impls.rs}}
+```
+
+</div>
+
+<div id="template/src/lib.rs" class="subtab tabcontent" data-id="src/lib.rs">
 
 ```rust
 {{#include ./template/src/lib.rs}}
@@ -34,9 +43,18 @@
 <div id="Solution" class="maintab tabcontent">
 
 <div class="tab">
-<button class="subtab tablinks file-solution file-modified active" onclick="switchSubTab(event, 'src/lib.rs')" data-id="src/lib.rs">src/lib.rs</button>
+<button class="subtab tablinks file-solution file-modified active" onclick="switchSubTab(event, 'src/impls.rs')" data-id="src/impls.rs">src/impls.rs</button>
+<button class="subtab tablinks file-solution file-modified" onclick="switchSubTab(event, 'src/lib.rs')" data-id="src/lib.rs">src/lib.rs</button>
 </div>
-<div id="solution/src/lib.rs" class="subtab tabcontent active" data-id="src/lib.rs">
+<div id="solution/src/impls.rs" class="subtab tabcontent active" data-id="src/impls.rs">
+
+```rust
+{{#include ./solution/src/impls.rs}}
+```
+
+</div>
+
+<div id="solution/src/lib.rs" class="subtab tabcontent" data-id="src/lib.rs">
 
 ```rust
 {{#include ./solution/src/lib.rs}}

diff --git a/src/11/solution/solution.diff b/src/11/solution/solution.diff
@@ -1,8 +1,22 @@
+diff --git a/src/impls.rs b/src/impls.rs
+index ba4070f..9481d05 100644
+--- a/src/impls.rs
++++ b/src/impls.rs
+@@ -5,8 +5,7 @@ impl<T: Config> Pallet<T> {
+ 	// Learn about `AccountId`.
+ 	pub fn mint(owner: T::AccountId) -> DispatchResult {
+ 		let current_count: u64 = CountForKitties::<T>::get().unwrap_or(0);
+-		/* TODO: Update this logic to use safe math. */
+-		let new_count = current_count + 1;
++		let new_count = current_count.checked_add(1).ok_or(Error::<T>::TooManyKitties)?;
+ 		CountForKitties::<T>::set(Some(new_count));
+ 		Self::deposit_event(Event::<T>::Created { owner });
+ 		Ok(())
 diff --git a/src/lib.rs b/src/lib.rs
-index 924f26f..2ed0e74 100644
+index 110d15d..9ff62ff 100644
 --- a/src/lib.rs
 +++ b/src/lib.rs
-@@ -33,9 +33,7 @@ pub mod pallet {
+@@ -35,9 +35,7 @@ pub mod pallet {
 
  	#[pallet::error]
  	pub enum Error<T> {
@@ -13,13 +27,3 @@ index 924f26f..2ed0e74 100644
  	}
 
  	// Learn about callable functions and dispatch.
-@@ -54,8 +52,7 @@ pub mod pallet {
- 		// Learn about `AccountId`.
- 		fn mint(owner: T::AccountId) -> DispatchResult {
- 			let current_count: u64 = CountForKitties::<T>::get().unwrap_or(0);
--			/* TODO: Update this logic to use safe math. */
--			let new_count = current_count + 1;
-+			let new_count = current_count.checked_add(1).ok_or(Error::<T>::TooManyKitties)?;
- 			CountForKitties::<T>::set(Some(new_count));
- 			Self::deposit_event(Event::<T>::Created { owner });
- 			Ok(())
diff --git a/src/11/solution/src/impls.rs b/src/11/solution/src/impls.rs
@@ -0,0 +1,13 @@
+use super::*;
+use frame_support::pallet_prelude::*;
+
+impl<T: Config> Pallet<T> {
+	// Learn about `AccountId`.
+	pub fn mint(owner: T::AccountId) -> DispatchResult {
+		let current_count: u64 = CountForKitties::<T>::get().unwrap_or(0);
+		let new_count = current_count.checked_add(1).ok_or(Error::<T>::TooManyKitties)?;
+		CountForKitties::<T>::set(Some(new_count));
+		Self::deposit_event(Event::<T>::Created { owner });
+		Ok(())
+	}
+}