4 add bulk delete contacts

src/main/java/codes/yam/contacts/ContactController.java

@@ -2,6 +2,7 @@
 
 import jakarta.validation.Valid;
 import java.net.URI;
+import java.util.List;
 import lombok.RequiredArgsConstructor;
 import org.springframework.http.HttpStatus;
 import org.springframework.http.ResponseEntity;
@@ -70,6 +71,12 @@ public ResponseEntity<Void> deleteContact(@PathVariable String slug) {
     return ResponseEntity.status(HttpStatus.SEE_OTHER).location(URI.create("/contacts")).build();
   }
 
+  @DeleteMapping
+  public ResponseEntity<Void> deleteManyContacts(@RequestParam List<String> slugs) {
+    contactService.deleteMany(slugs);
+    return ResponseEntity.status(HttpStatus.SEE_OTHER).location(URI.create("/contacts")).build();
+  }
+
   @GetMapping("/{slug}/email")
   @ResponseBody
   public String validateEmail(@PathVariable String slug, @RequestParam String email) {

src/main/java/codes/yam/contacts/ContactRepository.java

@@ -1,16 +1,23 @@
 package codes.yam.contacts;
 
+import java.util.Collection;
 import java.util.List;
 import java.util.Optional;
 import java.util.UUID;
 import org.springframework.data.jpa.repository.JpaRepository;
+import org.springframework.data.jpa.repository.Query;
+import org.springframework.data.repository.query.Param;
 
 public interface ContactRepository extends JpaRepository<Contact, UUID> {
   Optional<Contact> findBySlug(String slug);
 
   Optional<Contact> findByEmail(String email);
 
-  List<Contact>
-      findByFirstContainingIgnoreCaseOrLastContainingIgnoreCaseOrEmailContainingIgnoreCase(
-          String first, String last, String email);
+  List<Contact> findAllBySlugIn(Collection<String> slugs);
+
+  @Query("SELECT c FROM Contact c WHERE " +
+         "LOWER(c.first) LIKE LOWER(CONCAT('%', :q, '%')) OR " +
+         "LOWER(c.last)  LIKE LOWER(CONCAT('%', :q, '%')) OR " +
+         "LOWER(c.email) LIKE LOWER(CONCAT('%', :q, '%'))")
+  List<Contact> search(@Param("q") String q);
 }

src/main/java/codes/yam/contacts/ContactService.java

@@ -14,9 +14,7 @@ public List<Contact> findAll() {
   }
 
   public List<Contact> search(String q) {
-    return contactRepository
-        .findByFirstContainingIgnoreCaseOrLastContainingIgnoreCaseOrEmailContainingIgnoreCase(
-            q, q, q);
+    return contactRepository.search(q);
   }
 
   public Contact findBySlug(String slug) {
@@ -33,6 +31,11 @@ public void delete(String slug) {
     contactRepository.delete(contact);
   }
 
+  public void deleteMany(List<String> slugs) {
+    var contacts = contactRepository.findAllBySlugIn(slugs);
+    contactRepository.deleteAll(contacts);
+  }
+
   public Contact update(String slug, Contact updated) {
     var contact = findBySlug(slug);
     contact.setFirst(updated.getFirst());
@@ -48,16 +51,6 @@ private String generateSlug(Contact contact) {
     return contact.getFirst().toLowerCase() + "-" + contact.getLast().toLowerCase();
   }
 
-  /**
-   * Check if an email exists.
-   *
-   * @param email - the email to check
-   * @return true or false
-   */
-  public boolean isEmailTaken(String email) {
-    return contactRepository.findByEmail(email).isPresent();
-  }
-
   /**
    * Check if an email exists (for other slugs than the supplied slug).
    *