diff --git a/app/src/main/java/com/example/nemophila/viewmodels/PostsViewModel.java b/app/src/main/java/com/example/nemophila/viewmodels/PostsViewModel.java
index bb4252c..2985f6a 100644
--- a/app/src/main/java/com/example/nemophila/viewmodels/PostsViewModel.java
+++ b/app/src/main/java/com/example/nemophila/viewmodels/PostsViewModel.java
@@ -129,4 +129,12 @@
             }
         });
     }
+
+    public ArrayList<String> getUserIds() {
+        ArrayList<String> ids = new ArrayList<>();
+        for(Post post: shopPostsLiveData.getValue()) {
+            ids.add(post.getUid());
+        }
+        return ids;
+    }
 }
diff --git a/app/src/main/java/com/example/nemophila/viewmodels/ShopsViewModel.java b/app/src/main/java/com/example/nemophila/viewmodels/ShopsViewModel.java
index e0a8dc9..c31459d 100644
--- a/app/src/main/java/com/example/nemophila/viewmodels/ShopsViewModel.java
+++ b/app/src/main/java/com/example/nemophila/viewmodels/ShopsViewModel.java
@@ -154,23 +154,23 @@
         });
     }
 
-                // 新しく店を生成する
-        public void createShop (String name,double longitude, double latitude){
-            Call<Shop> call = shopsRest.createShop(name, longitude, latitude);
+    // 新しく店を生成する
+    public void createShop (String name,double longitude, double latitude){
+        Call<Shop> call = shopsRest.createShop(name, longitude, latitude);
 
-            call.enqueue(new Callback<Shop>() {
-                @Override
-                public void onResponse(Call<Shop> call, Response<Shop> response) {
-                    if (response.isSuccessful()) {
-                        currentShopLiveData.setValue(response.body());
-                    }
+        call.enqueue(new Callback<Shop>() {
+            @Override
+            public void onResponse(Call<Shop> call, Response<Shop> response) {
+                if (response.isSuccessful()) {
+                    currentShopLiveData.setValue(response.body());
                 }
+            }
 
-                @Override
-                public void onFailure(Call<Shop> call, Throwable t) {
-                    System.out.println("通信失敗 : createShop");
-                    System.out.println(t);
-                }
-            });
-        }
+            @Override
+            public void onFailure(Call<Shop> call, Throwable t) {
+                System.out.println("通信失敗 : createShop");
+                System.out.println(t);
+            }
+        });
     }
+}