#1331 커버 이미지를 선택할 수 있는 기능 추가

- files 테이블에 cover_image 컬럼 추가
- 썸네일 생성 로직에 cover_image 값을 참조하여 이미지 선택 사용
- 파일 업로드 기능에 UI 추가

modules/file/queries/getCoverImage.xml

@@ -0,0 +1,9 @@
+<query id="getCoverImage" action="select">
+    <tables>
+        <table name="files" />
+    </tables>
+    <conditions>
+        <condition operation="equal" column="upload_target_srl" var="upload_target_srl" filter="number" notnull="notnull" />
+        <condition operation="equal" column="cover_image" default="Y" notnull="notnull" />
+    </conditions>
+</query>

modules/file/queries/insertFile.xml

@@ -14,6 +14,7 @@
         <column name="comment" var="comment" />
         <column name="download_count" var="download_count" default="0" />
         <column name="member_srl" var="member_srl" default="0" />
+        <column name="cover_image" var="is_cover" default="N" />
         <column name="regdate" var="regdate" default="curdate()" />
         <column name="ipaddress" var="ipaddress" default="ipaddress()" />
         <column name="isvalid" var="isvalid" default="N" />

modules/file/queries/updateClearCoverImage.xml

@@ -0,0 +1,13 @@
+<query id="updateClearCoverImage" action="update">
+    <tables>
+        <table name="files" />
+    </tables>
+    <columns>
+        <column name="cover_image" default="N" notnull="notnull" />
+    </columns>
+    <conditions>
+        <condition operation="equal" column="upload_target_srl" var="upload_target_srl" notnull="notnull" />
+        <condition operation="equal" column="cover_image" default="Y" notnull="notnull" pipe="and" />
+        <condition operation="notequal" column="file_srl" var="cover_file_srl" pipe="and" />
+    </conditions>
+</query>

modules/file/queries/updateCoverImage.xml

@@ -0,0 +1,11 @@
+<query id="updateCoverImage" action="update">
+    <tables>
+        <table name="files" />
+    </tables>
+    <columns>
+        <column name="cover_image" var="cover_image" default="Y" notnull="notnull" />
+    </columns>
+    <conditions>
+        <condition operation="equal" column="file_srl" var="file_srl" filter="number" notnull="notnull" />
+    </conditions>
+</query>

modules/file/queries/updateFile.xml

@@ -7,6 +7,7 @@
         <column name="upload_target_type" var="upload_target_type" />
         <column name="module_srl" var="module_srl" filter="number" notnull="notnull" />
         <column name="uploaded_filename" var="uploaded_filename" notnull="notnull" minlength="1" maxlength="250" />
+        <column name="cover_image" var="is_cover" default="N" />
     </columns>
     <conditions>
         <condition operation="equal" column="file_srl" var="file_srl" filter="number" notnull="notnull" />