solution to exercise 03_07

exercises/03_ticket_v1/04_visibility/src/lib.rs

@@ -1,12 +1,12 @@
 mod ticket {
-    struct Ticket {
+    pub struct Ticket {
         title: String,
         description: String,
         status: String,
     }
 
     impl Ticket {
-        fn new(title: String, description: String, status: String) -> Ticket {
+        pub fn new(title: String, description: String, status: String) -> Ticket {
             if title.is_empty() {
                 panic!("Title cannot be empty");
             }
@@ -55,7 +55,7 @@ mod tests {
         //
         // TODO: Once you have verified that the below does not compile,
         //   comment the line out to move on to the next exercise!
-        assert_eq!(ticket.description, "A description");
+        // assert_eq!(ticket.description, "A description");
     }
 
     fn encapsulation_cannot_be_violated() {
@@ -68,10 +68,10 @@ mod tests {
         //
         // TODO: Once you have verified that the below does not compile,
         //   comment the lines out to move on to the next exercise!
-        let ticket = Ticket {
+        // let ticket = Ticket {
-            title: "A title".into(),
+        //    title: "A title".into(),
-            description: "A description".into(),
+        //    description: "A description".into(),
-            status: "To-Do".into(),
+        //    status: "To-Do".into(),
-        };
+        // };
     }
 }

exercises/03_ticket_v1/05_encapsulation/src/lib.rs

@@ -34,6 +34,17 @@ pub mod ticket {
         //  - `title` that returns the `title` field.
         //  - `description` that returns the `description` field.
         //  - `status` that returns the `status` field.
+        pub fn title(self) -> String {
+            self.title
+        }
+
+        pub fn description(self) -> String {
+            self.description
+        }
+
+        pub fn status(self) -> String {
+            self.status
+        }
     }
 }
 

exercises/03_ticket_v1/06_ownership/src/lib.rs

@@ -34,16 +34,16 @@ impl Ticket {
         }
     }
 
-    pub fn title(self) -> String {
+    pub fn title(&self) -> &String {
-        self.title
+        &self.title
     }
 
-    pub fn description(self) -> String {
+    pub fn description(&self) -> &String {
-        self.description
+        &self.description
     }
 
-    pub fn status(self) -> String {
+    pub fn status(&self) -> &String {
-        self.status
+        &self.status
     }
 }
 

exercises/03_ticket_v1/07_setters/src/lib.rs

@@ -11,21 +11,9 @@ pub struct Ticket {
 
 impl Ticket {
     pub fn new(title: String, description: String, status: String) -> Ticket {
-        if title.is_empty() {
+        validate_title(&title);
-            panic!("Title cannot be empty");
+        validate_description(&description);
-        }
+        validate_status(&status);
-        if title.len() > 50 {
-            panic!("Title cannot be longer than 50 bytes");
-        }
-        if description.is_empty() {
-            panic!("Description cannot be empty");
-        }
-        if description.len() > 500 {
-            panic!("Description cannot be longer than 500 bytes");
-        }
-        if status != "To-Do" && status != "In Progress" && status != "Done" {
-            panic!("Only `To-Do`, `In Progress`, and `Done` statuses are allowed");
-        }
 
         Ticket {
             title,
@@ -45,6 +33,45 @@ impl Ticket {
     pub fn status(&self) -> &String {
         &self.status
     }
+
+    pub fn set_title(&mut self, title: String) {
+        validate_title(&title);
+        self.title = title;
+    }
+
+    pub fn set_description(&mut self, description: String) {
+        validate_description(&description);
+        self.description = description;
+    }
+
+    pub fn set_status(&mut self, status: String) {
+        validate_status(&status);
+        self.status = status;
+    }
+}
+
+fn validate_title(title: &String) {
+    if title.is_empty() {
+        panic!("Title cannot be empty");
+    }
+    if title.len() > 50 {
+        panic!("Title cannot be longer than 50 bytes");
+    }
+}
+
+fn validate_description(description: &String) {
+    if description.is_empty() {
+        panic!("Description cannot be empty");
+    }
+    if description.len() > 500 {
+        panic!("Description cannot be longer than 500 bytes");
+    }
+}
+
+fn validate_status(status: &String) {
+    if status != "To-Do" && status != "In Progress" && status != "Done" {
+        panic!("Only `To-Do`, `In Progress`, and `Done` statuses are allowed");
+    }
 }
 
 #[cfg(test)]