Add: update tag info

pkg/api/api.go

@@ -86,6 +86,7 @@ func NewAPI(config Config) (*API, error) {
 	apiMux.HandleFunc("/get_tags", api.HandleGetTags)
 	apiMux.HandleFunc("/get_tag_info", api.HandleGetTagInfo)
 	apiMux.HandleFunc("/insert_tag", api.HandleInsertTag)
+	apiMux.HandleFunc("/update_tag", api.HandleUpdateTag)
 	// below needs token
 	apiMux.HandleFunc("/walk", api.HandleWalk)
 	apiMux.HandleFunc("/reset", api.HandleReset)

pkg/api/handle_tag.go

@@ -91,3 +91,28 @@ func (api *API) HandleGetTagInfo(w http.ResponseWriter, r *http.Request) {
 		return
 	}
 }
+
+func (api *API) HandleUpdateTag(w http.ResponseWriter, r *http.Request) {
+	// check if user is admin
+	err := api.CheckAdmin(w, r)
+	if err != nil {
+		return
+	}
+
+	req := &database.Tag{}
+	err = json.NewDecoder(r.Body).Decode(req)
+	if err != nil {
+		api.HandleError(w, r, err)
+		return
+	}
+	tag, err := api.Db.UpdateTag(req)
+	if err != nil {
+		api.HandleError(w, r, err)
+		return
+	}
+	err = json.NewEncoder(w).Encode(tag)
+	if err != nil {
+		api.HandleError(w, r, err)
+		return
+	}
+}

pkg/database/method_tag.go

@@ -1,5 +1,7 @@
 package database
 
+import "errors"
+
 func (database *Database) InsertTag(tag string, description string) (*Tag, error) {
 	result, err := database.stmt.insertTag.Exec(tag, description)
 	if err != nil {
@@ -38,3 +40,18 @@ func (database *Database) GetTags() ([]Tag, error) {
 	}
 	return tags, nil
 }
+
+func (database *Database) UpdateTag(tag *Tag) (*Tag, error) {
+	result, err := database.stmt.updateTag.Exec(tag.Name, tag.Description, tag.ID)
+	if err != nil {
+		return nil, err
+	}
+	rowsAffected, err := result.RowsAffected()
+	if err != nil {
+		return nil, err
+	}
+	if rowsAffected == 0 {
+		return nil, errors.New("No rows affected")
+	}
+	return database.GetTag(tag.ID)
+}

pkg/database/sql_stmt.go

@@ -176,6 +176,8 @@ var getTagQuery = `SELECT id, name, description FROM tags WHERE id = ? LIMIT 1;`
 
 var getTagsQuery = `SELECT id, name, description FROM tags;`
 
+var updateTagQuery = `UPDATE tags SET name = ?, description = ? WHERE id = ?;`
+
 type Stmt struct {
 	initFilesTable     *sql.Stmt
 	initFoldersTable   *sql.Stmt
@@ -211,6 +213,7 @@ type Stmt struct {
 	insertTag          *sql.Stmt
 	getTag             *sql.Stmt
 	getTags            *sql.Stmt
+	updateTag          *sql.Stmt
 }
 
 func NewPreparedStatement(sqlConn *sql.DB) (*Stmt, error) {
@@ -485,5 +488,11 @@ func NewPreparedStatement(sqlConn *sql.DB) (*Stmt, error) {
 		return nil, err
 	}
 
+	// init updateTag
+	stmt.updateTag, err = sqlConn.Prepare(updateTagQuery)
+	if err != nil {
+		return nil, err
+	}
+
 	return stmt, err
 }

web/src/component/EditTag.js

@@ -3,9 +3,13 @@ import { useParams } from "react-router";
 
 function EditTag() {
   let params = useParams();
-  const [tag, setTag] = useState({});
+  const [tag, setTag] = useState({
+    id: "",
+    name: "",
+    description: "",
+  });
 
-  useEffect(() => {
+  function refreshTagInfo() {
     fetch("/api/v1/get_tag_info", {
       method: "POST",
       headers: {
@@ -23,6 +27,33 @@ function EditTag() {
           setTag(data.tag);
         }
       });
+  }
+
+  function updateTagInfo() {
+    fetch("/api/v1/update_tag", {
+      method: "POST",
+      headers: {
+        "Content-Type": "application/json",
+      },
+      body: JSON.stringify({
+        id: parseInt(params.id),
+        name: tag.name,
+        description: tag.description,
+      }),
+    })
+      .then((res) => res.json())
+      .then((data) => {
+        if (data.error) {
+          alert(data.error);
+        } else {
+          alert("Tag updated successfully");
+          refreshTagInfo();
+        }
+      });
+  }
+
+  useEffect(() => {
+    refreshTagInfo();
   }, []);
 
   return (
@@ -53,7 +84,7 @@ function EditTag() {
           value={tag.description}
           onChange={(e) => setTag({ ...tag, description: e.target.value })}
         />
-        <button onClick={() => {}}>Save</button>
+        <button onClick={() => updateTagInfo()}>Save</button>
       </div>
     </div>
   );