feat : voucher policy별 조회기능 추가

Author: eugene225

src/main/java/org/prgrms/kdtspringdemo/voucher/controller/VoucherWebController.java

@@ -21,9 +21,15 @@ public VoucherWebController(VoucherService voucherService) {
     }
 
     @GetMapping
-    public String listVouchers(Model model) {
-        List<Voucher> voucherList = voucherService.findAll();
-        model.addAttribute("voucherList", voucherList);
+    public String getAllVouchers(@RequestParam(name = "policy", required = false) String policy, Model model) {
+        List<Voucher> vouchers;
+        if (policy != null && !policy.isEmpty()) {
+            vouchers = voucherService.findByPolicy(policy);
+        } else {
+            vouchers = voucherService.findAll();
+        }
+
+        model.addAttribute("vouchers", vouchers);
         return "voucher";
     }
 

src/main/java/org/prgrms/kdtspringdemo/voucher/repository/FileVoucherRepository.java

@@ -95,6 +95,11 @@ public List<Voucher> findAll() {
         return voucherList;
     }
 
+    @Override
+    public List<Voucher> findByPolicy(String policy) {
+        return null;
+    }
+
     @Override
     public List<Voucher> findUnallocatedVoucher() {
         return null;

src/main/java/org/prgrms/kdtspringdemo/voucher/repository/JdbcVoucherRepository.java

@@ -87,6 +87,13 @@ public List<Voucher> findAll() {
         return jdbcTemplate.query("select * from voucher", voucherRowMapper);
     }
 
+    @Override
+    public List<Voucher> findByPolicy(String policy) {
+        return jdbcTemplate.query("select * from voucher where voucher_type = ?",
+                voucherRowMapper,
+                policy);
+    }
+
     @Override
     public List<Voucher> findUnallocatedVoucher() {
         return jdbcTemplate.query("SELECT voucher.voucher_id, voucher.voucher_type, voucher.amount FROM voucher LEFT JOIN wallet_customer_voucher ON voucher.voucher_id = wallet_customer_voucher.voucher_id WHERE wallet_customer_voucher.voucher_id IS NULL",

src/main/java/org/prgrms/kdtspringdemo/voucher/repository/MemoryVoucherRepository.java

@@ -40,6 +40,11 @@ public List<Voucher> findAll() {
         return voucherList;
     }
 
+    @Override
+    public List<Voucher> findByPolicy(String policy) {
+        return null;
+    }
+
     @Override
     public List<Voucher> findUnallocatedVoucher() {
         return null;

src/main/java/org/prgrms/kdtspringdemo/voucher/repository/VoucherRepository.java

@@ -12,6 +12,7 @@ public interface VoucherRepository {
     void update(UUID voucherId, VoucherRequestDto voucherRequestDto);
     Optional<Voucher> findById(UUID voucherId);
     List<Voucher> findAll();
+    List<Voucher> findByPolicy(String policy);
     List<Voucher> findUnallocatedVoucher();
     void deleteById(UUID voucherId);
     void deleteAll();

src/main/java/org/prgrms/kdtspringdemo/voucher/service/VoucherService.java

@@ -41,6 +41,10 @@ public List<Voucher> findAll() {
         return voucherRepository.findAll();
     }
 
+    public List<Voucher> findByPolicy(String policy) {
+        return voucherRepository.findByPolicy(policy);
+    }
+
     public List<Voucher> findUnallocatedVoucher() {
         return voucherRepository.findUnallocatedVoucher();
     }

src/main/resources/templates/voucher.html

@@ -30,9 +30,21 @@
 </nav>
 
 <div class="container">
-
     <h1 class="mt-5">Voucher Management</h1>
 
+    <!-- Filter by Policy Dropdown Form -->
+    <form th:action="@{/vouchers}" method="get">
+        <div class="form-group">
+            <label for="policyFilter">Filter by Policy:</label>
+            <select class="form-control" id="policyFilter" name="policy">
+                <option value="">All Policies</option>
+                <option value="fixedDiscount">Fixed Discount</option>
+                <option value="percentDiscount">Percent Discount</option>
+            </select>
+        </div>
+        <button type="submit" class="btn btn-primary">Apply Filter</button>
+    </form>
+
     <!-- Voucher List -->
     <h2 class="mt-3">All Vouchers</h2>
     <table class="table table-striped">
@@ -45,7 +57,7 @@ <h2 class="mt-3">All Vouchers</h2>
         </tr>
         </thead>
         <tbody>
-        <tr th:each="voucher : ${voucherList}">
+        <tr th:each="voucher : ${vouchers}">
             <td th:text="${voucher.voucherId}">Voucher ID</td>
             <td th:text="${voucher.voucherPolicy.voucherType}">Voucher Policy</td>
             <td th:text="${voucher.voucherPolicy.amount}">Discount Amount</td>
@@ -74,7 +86,6 @@ <h2 class="mt-5">Create Voucher</h2>
         </div>
         <button type="submit" class="btn btn-primary">Create</button>
     </form>
-
 </div>
 
 <!-- Include Bootstrap JS -->