Fixed and updated page visit example

Author: Woody4618

Cargo.lock

@@ -1,7 +1,7 @@
 [features]
 seeds = false
 [programs.localnet]
-anchor_program_example = "FFKtnYFyzPj1qFjE9epkrfYHJwZMdh8CvJrB6XsKeFVz"
+anchor_program_example = "oCCQRZyAbVxujyd8m57MPmDzZDmy2FoKW4ULS7KofCE"
 
 [registry]
 url = "https://anchor.projectserum.com"

basics/program-derived-addresses/anchor/Anchor.toml

@@ -16,4 +16,5 @@ cpi = ["no-entrypoint"]
 default = []
 
 [dependencies]
-anchor-lang = "0.28.0"
+anchor-lang = "0.29.0"
+ahash = "=0.8.6"

basics/program-derived-addresses/anchor/programs/anchor-program-example/Cargo.toml

@@ -23,7 +23,7 @@ pub struct CreatePageVisits<'info> {
 pub fn create_page_visits(ctx: Context<CreatePageVisits>) -> Result<()> {
     *ctx.accounts.page_visits = PageVisits {
         page_visits: 0,
-        bump: *ctx.bumps.get("page_visits").unwrap(),
+        bump: ctx.bumps.page_visits,
     };
 
     Ok(())

basics/program-derived-addresses/anchor/programs/anchor-program-example/src/instructions/create.rs

@@ -7,7 +7,7 @@ use instructions::*;
 pub mod instructions;
 pub mod state;
 
-declare_id!("FFKtnYFyzPj1qFjE9epkrfYHJwZMdh8CvJrB6XsKeFVz");
+declare_id!("oCCQRZyAbVxujyd8m57MPmDzZDmy2FoKW4ULS7KofCE");
 
 #[program]
 pub mod anchor_program_example {

basics/program-derived-addresses/anchor/programs/anchor-program-example/src/lib.rs

@@ -8,7 +8,7 @@ pub struct PageVisits {
 }
 
 impl PageVisits {
-    pub const SEED_PREFIX: &[u8; 11] = b"page_visits";
+    pub const SEED_PREFIX: &'static [u8; 11] = b"page_visits";
 
     pub fn increment(&mut self) {
         self.page_visits = self.page_visits.checked_add(1).unwrap();