Update OwnerController.java

src/main/java/org/springframework/samples/petclinic/owner/OwnerController.java

@@ -80,8 +80,7 @@ class OwnerController {
     }
 
     @GetMapping("/owners")
-	public String processFindForm(@RequestParam(defaultValue = "1") int page, Owner owner, BindingResult result,
+    public String processFindForm(@RequestParam(defaultValue = "1") int page, Owner owner, BindingResult result, Model model) {
-			Model model) {
         // allow parameterless GET request for /owners to return all records
         if (owner.getLastName() == null) {
             owner.setLastName(""); // empty string signifies broadest possible search
@@ -152,4 +151,49 @@ class OwnerController {
         return mav;
     }
 
+    // New method to delete an owner by ID
+    @PostMapping("/owners/{ownerId}/delete")
+    public String processDeleteOwner(@PathVariable("ownerId") int ownerId, RedirectAttributes redirectAttributes) {
+        this.owners.deleteById(ownerId);
+        redirectAttributes.addFlashAttribute("message", "Owner Deleted Successfully");
+        return "redirect:/owners";
+    }
+
+    // New method to search owners by first name
+    @GetMapping("/owners/findByFirstName")
+    public String processFindByFirstNameForm(@RequestParam(defaultValue = "1") int page, Owner owner, BindingResult result, Model model) {
+        // Allow parameterless GET request for /owners/findByFirstName to return all records
+        if (owner.getFirstName() == null) {
+            owner.setFirstName(""); // empty string signifies broadest possible search
+        }
+
+        // Use existing method to find owners by first name
+        Page<Owner> ownersResults = findPaginatedForOwnersFirstName(page, owner.getFirstName());
+        if (ownersResults.isEmpty()) {
+            // No owners found
+            result.rejectValue("firstName", "notFound", "not found");
+            return "owners/findOwners";
+        }
+
+        if (ownersResults.getTotalElements() == 1) {
+            // 1 owner found
+            owner = ownersResults.iterator().next();
+            return "redirect:/owners/" + owner.getId();
+        }
+
+        // Multiple owners found
+        return addPaginationModel(page, model, ownersResults);
+    }
+
+    // Helper method to paginate results for searching by first name
+    private Page<Owner> findPaginatedForOwnersFirstName(int page, String firstName) {
+        Pageable pageable = PageRequest.of(page - 1, 5); // Example page size of 5
+        return this.owners.findByFirstNameContaining(firstName, pageable); // Ensure this method exists in your repository
+    }
+
+    // Existing method to paginate owners by last name
+    private Page<Owner> findPaginatedForOwnersLastName(int page, String lastName) {
+        Pageable pageable = PageRequest.of(page - 1, 5); // Example page size of 5
+        return this.owners.findByLastNameContaining(lastName, pageable); // Ensure this method exists in your repository
+    }
 }