Fill invalid forms with submitted values

src/routes/sessions.rs

@@ -25,6 +25,7 @@ pub fn new(
 
     let page_context = views::sessions::New {
         authenticity_token: csrf_token.0.to_string(),
+        username: "".to_string(),
     };
 
     let context = views::Site {
@@ -54,10 +55,10 @@ pub fn create(
     }
 
     let user = models::User::by_username(db_conn, form.username.to_string())
-        .or_else(|_| Err(invalid_sign_in_credentials(&csrf_token.0)))?;
+        .or_else(|_| Err(invalid_sign_in_credentials(&csrf_token.0, &form.0)))?;
 
     if !user.authorize(&form.password) {
-        return Err(invalid_sign_in_credentials(&csrf_token.0));
+        return Err(invalid_sign_in_credentials(&csrf_token.0, &form.0));
     }
 
     cookies.add_private(Cookie::new("user_id", user.id.to_string()));
@@ -85,9 +86,13 @@ pub fn delete(
     Ok(Redirect::to(uri!(super::home::index)))
 }
 
-fn invalid_sign_in_credentials(authenticity_token: &String) -> CommonResponse {
+fn invalid_sign_in_credentials(
+    authenticity_token: &String,
+    form: &forms::UserSignIn,
+) -> CommonResponse {
     let page_context = views::sessions::New {
         authenticity_token: authenticity_token.to_string(),
+        username: form.username.to_string(),
     };
 
     let context = views::Site {

src/routes/users.rs

@@ -25,6 +25,7 @@ pub fn new(
 
     let page_context = views::users::New {
         authenticity_token: csrf_token.0.to_string(),
+        username: "".to_string(),
     };
 
     let context = views::Site {
@@ -54,18 +55,22 @@ pub fn create(
     }
 
     let user = models::NewUser::from_form(&form)
-        .or_else(|_| Err(invalid_sign_up_form(&csrf_token.0)))?
+        .or_else(|_| Err(invalid_sign_up_form(&csrf_token.0, &form.0)))?
         .save(db_conn)
-        .or_else(|_| Err(invalid_sign_up_form(&csrf_token.0)))?;
+        .or_else(|_| Err(invalid_sign_up_form(&csrf_token.0, &form.0)))?;
 
     cookies.add_private(Cookie::new("user_id", user.id.to_string()));
 
     Ok(Redirect::to(uri!(super::home::index)))
 }
 
-fn invalid_sign_up_form(authenticity_token: &String) -> CommonResponse {
+fn invalid_sign_up_form(
+    authenticity_token: &String,
+    form: &forms::UserSignUp,
+) -> CommonResponse {
     let page_context = views::users::New {
         authenticity_token: authenticity_token.to_string(),
+        username: form.username.to_string(),
     };
 
     let context = views::Site {

src/views.rs

@@ -28,6 +28,7 @@ pub mod sessions {
     #[derive(Serialize)]
     pub struct New {
         pub authenticity_token: String,
+        pub username: String,
     }
 }
 
@@ -35,5 +36,6 @@ pub mod users {
     #[derive(Serialize)]
     pub struct New {
         pub authenticity_token: String,
+        pub username: String,
     }
 }

templates/sessions/new.html.hbs

@@ -6,12 +6,12 @@
 
     <div class="form-group">
       <label for="username">Username</label>
-      <input id="username" name="username" type="text" class="form-control" placeholder="Username"/>
+      <input type="text" id="username" name="username" value="{{ username }}" class="form-control" placeholder="Username"/>
     </div>
 
     <div class="form-group">
       <label for="password">Password</label>
-      <input id="password" name="password" type="password" class="form-control" placeholder="Password"/>
+      <input type="password" id="password" name="password" class="form-control" placeholder="Password"/>
     </div>
 
     <button type="submit" class="btn btn-primary">

templates/users/new.html.hbs

@@ -6,17 +6,17 @@
 
     <div class="form-group">
       <label for="username">Username</label>
-      <input id="username" name="username" type="text" class="form-control" placeholder="Username"/>
+      <input type="text" id="username" name="username" value="{{ username }}" class="form-control" placeholder="Username"/>
     </div>
 
     <div class="form-group">
       <label for="password">Password</label>
-      <input id="password" name="password" type="password" class="form-control" placeholder="Password"/>
+      <input type="password" id="password" name="password" class="form-control" placeholder="Password"/>
     </div>
 
     <div class="form-group">
       <label for="password_confirmation">Password confirmation</label>
-      <input id="password_confirmation" name="password_confirmation" type="password" class="form-control" placeholder="Password confirmation"/>
+      <input type="password" id="password_confirmation" name="password_confirmation" class="form-control" placeholder="Password confirmation"/>
     </div>
 
     <button type="submit" class="btn btn-primary">