質問編集履歴
2
追記の削除
test
CHANGED
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File without changes
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test
CHANGED
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@@ -187,83 +187,3 @@
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187
187
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```
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このColumnsに問題があるのでしょうか...
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-
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191
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追記 2020/04/27
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---
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-
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回答を参考に実行したDB処理文
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196
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-
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197
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```Java
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198
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-
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199
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@Override
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200
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-
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201
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public boolean onMove(@NonNull RecyclerView recyclerView,
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-
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@NonNull RecyclerView.ViewHolder viewHolder,
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-
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@NonNull RecyclerView.ViewHolder target) {
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final int fromPos = viewHolder.getAdapterPosition();
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-
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final int toPos = target.getAdapterPosition();
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210
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-
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myDataset.add(toPos, myDataset.remove(fromPos));
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SQLiteDatabase db = helper.getWritableDatabase();
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-
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try {
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-
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Cursor c = db.rawQuery("SELECT body, date FROM MemoTable ORDER BY id", null);
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c.moveToPosition(fromPos);
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String bodyF = c.getString(0);
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String dateF = c.getString(1);
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-
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c.moveToPosition(toPos);
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-
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String bodyT = c.getString(0);
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-
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String dateT = c.getString(1);
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230
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-
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int fpPlus = fromPos +1;
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-
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int tpPlus = toPos +1;
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-
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db.execSQL("UPDATE MT SET body = '"+ bodyF +"', date = '"+ dateF +"'FROM MemoTable MT WHERE id = "+ tpPlus +"");
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-
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db.execSQL("UPDATE MT SET body = '"+ bodyT +"', date = '"+ dateT +"'FROM MemoTable MT WHERE id = "+ fpPlus +"");
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-
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239
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} finally { db.close(); }
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240
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-
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mAdapter.notifyItemMoved(fromPos, toPos);
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-
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return true;
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-
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}
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-
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```
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-
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エラー
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250
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-
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251
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```
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252
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-
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253
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2020-04-27 20:35:25.030 10039-10039/com.example.recyclerview_practice E/SQLiteLog: (1) near "FROM": syntax error
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254
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-
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255
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2020-04-27 20:35:25.033 10039-10039/com.example.recyclerview_practice E/InputEventReceiver: Exception dispatching input event.
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256
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-
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257
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2020-04-27 20:35:25.034 10039-10039/com.example.recyclerview_practice D/AndroidRuntime: Shutting down VM
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258
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-
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259
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2020-04-27 20:35:25.037 10039-10039/com.example.recyclerview_practice E/AndroidRuntime: FATAL EXCEPTION: main
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260
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-
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Process: com.example.recyclerview_practice, PID: 10039
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263
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android.database.sqlite.SQLiteException: near "FROM": syntax error (code 1): , while compiling: UPDATE MT SET body = 'いち', date = '2020/04/27'FROM MemoTable MT WHERE id = 2
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264
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-
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265
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at android.database.sqlite.SQLiteConnection.nativePrepareStatement(Native Method)
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266
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-
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267
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atが続く...
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268
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-
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269
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```
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1
DB処理文の追加とそれによるエラー
test
CHANGED
|
File without changes
|
test
CHANGED
|
@@ -187,3 +187,83 @@
|
|
|
187
187
|
```
|
|
188
188
|
|
|
189
189
|
このColumnsに問題があるのでしょうか...
|
|
190
|
+
|
|
191
|
+
追記 2020/04/27
|
|
192
|
+
|
|
193
|
+
---
|
|
194
|
+
|
|
195
|
+
回答を参考に実行したDB処理文
|
|
196
|
+
|
|
197
|
+
```Java
|
|
198
|
+
|
|
199
|
+
@Override
|
|
200
|
+
|
|
201
|
+
public boolean onMove(@NonNull RecyclerView recyclerView,
|
|
202
|
+
|
|
203
|
+
@NonNull RecyclerView.ViewHolder viewHolder,
|
|
204
|
+
|
|
205
|
+
@NonNull RecyclerView.ViewHolder target) {
|
|
206
|
+
|
|
207
|
+
final int fromPos = viewHolder.getAdapterPosition();
|
|
208
|
+
|
|
209
|
+
final int toPos = target.getAdapterPosition();
|
|
210
|
+
|
|
211
|
+
myDataset.add(toPos, myDataset.remove(fromPos));
|
|
212
|
+
|
|
213
|
+
SQLiteDatabase db = helper.getWritableDatabase();
|
|
214
|
+
|
|
215
|
+
try {
|
|
216
|
+
|
|
217
|
+
Cursor c = db.rawQuery("SELECT body, date FROM MemoTable ORDER BY id", null);
|
|
218
|
+
|
|
219
|
+
c.moveToPosition(fromPos);
|
|
220
|
+
|
|
221
|
+
String bodyF = c.getString(0);
|
|
222
|
+
|
|
223
|
+
String dateF = c.getString(1);
|
|
224
|
+
|
|
225
|
+
c.moveToPosition(toPos);
|
|
226
|
+
|
|
227
|
+
String bodyT = c.getString(0);
|
|
228
|
+
|
|
229
|
+
String dateT = c.getString(1);
|
|
230
|
+
|
|
231
|
+
int fpPlus = fromPos +1;
|
|
232
|
+
|
|
233
|
+
int tpPlus = toPos +1;
|
|
234
|
+
|
|
235
|
+
db.execSQL("UPDATE MT SET body = '"+ bodyF +"', date = '"+ dateF +"'FROM MemoTable MT WHERE id = "+ tpPlus +"");
|
|
236
|
+
|
|
237
|
+
db.execSQL("UPDATE MT SET body = '"+ bodyT +"', date = '"+ dateT +"'FROM MemoTable MT WHERE id = "+ fpPlus +"");
|
|
238
|
+
|
|
239
|
+
} finally { db.close(); }
|
|
240
|
+
|
|
241
|
+
mAdapter.notifyItemMoved(fromPos, toPos);
|
|
242
|
+
|
|
243
|
+
return true;
|
|
244
|
+
|
|
245
|
+
}
|
|
246
|
+
|
|
247
|
+
```
|
|
248
|
+
|
|
249
|
+
エラー
|
|
250
|
+
|
|
251
|
+
```
|
|
252
|
+
|
|
253
|
+
2020-04-27 20:35:25.030 10039-10039/com.example.recyclerview_practice E/SQLiteLog: (1) near "FROM": syntax error
|
|
254
|
+
|
|
255
|
+
2020-04-27 20:35:25.033 10039-10039/com.example.recyclerview_practice E/InputEventReceiver: Exception dispatching input event.
|
|
256
|
+
|
|
257
|
+
2020-04-27 20:35:25.034 10039-10039/com.example.recyclerview_practice D/AndroidRuntime: Shutting down VM
|
|
258
|
+
|
|
259
|
+
2020-04-27 20:35:25.037 10039-10039/com.example.recyclerview_practice E/AndroidRuntime: FATAL EXCEPTION: main
|
|
260
|
+
|
|
261
|
+
Process: com.example.recyclerview_practice, PID: 10039
|
|
262
|
+
|
|
263
|
+
android.database.sqlite.SQLiteException: near "FROM": syntax error (code 1): , while compiling: UPDATE MT SET body = 'いち', date = '2020/04/27'FROM MemoTable MT WHERE id = 2
|
|
264
|
+
|
|
265
|
+
at android.database.sqlite.SQLiteConnection.nativePrepareStatement(Native Method)
|
|
266
|
+
|
|
267
|
+
atが続く...
|
|
268
|
+
|
|
269
|
+
```
|