fix #494: add delete impact confirmations

src/main/resources/templates/permissions.html

@@ -12,6 +12,7 @@
   <section th:replace="~{fragments/layout :: architectureStrip('permission')}"></section>
 
   <div class="alert alert-success" th:if="${message}" th:text="${message}"></div>
+  <div class="alert alert-danger" th:if="${error}" th:text="${error}"></div>
 
   <section class="content-band">
     <div class="section-heading">
@@ -222,11 +223,13 @@
           <th>행 규칙</th>
           <th>적용 필터</th>
           <th>원문 표시 허용 컬럼</th>
+          <th>삭제 영향</th>
           <th></th>
         </tr>
         </thead>
         <tbody>
-        <tr th:each="permission : ${permissions}">
+        <tr th:each="permission : ${permissions}"
+            th:with="lastPermission=${lastPermissionByPermissionId[permission.permissionId()]}">
           <td th:text="${permission.permissionId()}">100</td>
           <td th:text="${permission.roleName()}">HR_DEPT_ROLE</td>
           <td th:text="${permission.objectName()}">CB_V_SEARCH_DOCUMENTS</td>
@@ -239,16 +242,26 @@
           <td th:text="${permission.rules()} ?: '-'">ALL</td>
           <td><pre class="table-pre" th:text="${permission.filterPreview()} ?: '-'">ALL ROWS</pre></td>
           <td th:text="${permission.visibleColumns()} ?: '-'">CONTENTS</td>
+          <td class="delete-impact">
+            <span>역할이 이 TABLE/VIEW의 SELECT 권한을 잃습니다.</span>
+            <strong th:text="${permission.roleName() + ' -> ' + permission.objectName()}">ROLE -> OBJECT</strong>
+            <small th:if="${lastPermission}" class="text-danger">이 객체의 마지막 권한입니다. 삭제 후 보호 객체가 비활성화됩니다.</small>
+            <small th:unless="${lastPermission}">같은 객체에 다른 역할 권한이 남아 있습니다.</small>
+          </td>
           <td>
             <form method="post" action="/permissions/delete" class="inline-form">
               <input type="hidden" th:name="${_csrf.parameterName}" th:value="${_csrf.token}">
               <input type="hidden" name="permissionId" th:value="${permission.permissionId()}">
+              <label class="delete-confirm">
+                <input type="checkbox" name="confirmImpact" value="true" required>
+                영향 확인
+              </label>
               <button class="btn btn-sm btn-outline-danger" type="submit">삭제</button>
             </form>
           </td>
         </tr>
         <tr th:if="${#lists.isEmpty(permissions)}">
-          <td colspan="9" class="text-muted">등록된 권한이 없습니다.</td>
+          <td colspan="10" class="text-muted">등록된 권한이 없습니다.</td>
         </tr>
         </tbody>
       </table>