sto usando ORMLite, con la tabella delle RecentSearch:interrogazione ORMLite citando, Android
@DatabaseTable(tableName = LocalStorageConfig.SQL_RECENTS_TABLE_NAME)
public class RecentSearch {
@DatabaseField
public String search_text;
public static String SQL_SEARCH_FIELD = "search_text";
@DatabaseField
public String location_text;
public static String SQL_LOCATION_FIELD = "location_text";
@DatabaseField
public Date creation_date = new Date();
public static String SQL_CREATION_DATE_FIELD = "creation_date";
E 'di lavoro quasi tutto il tempo, ma quando scopro il caso con una stringa contenente un', poi appare essere un problema Sai come risolvere questo? Non riuscivo a trovare quello che stavo cercando.
Qui è la mia funzione per eliminare una recente
public boolean deleteRecent(RecentSearch search) {
try {
Dao<RecentSearch, Integer> recentsDao = recentsSqlManager.getRecentsDao();
DeleteBuilder<RecentSearch, Integer> deleteBuilder = recentsDao.deleteBuilder();
deleteBuilder.where().eq(RecentSearch.SQL_SEARCH_FIELD, search.getSearch_text()).and().eq(RecentSearch.SQL_LOCATION_FIELD, search.location_text);
recentsDao.delete(deleteBuilder.prepare());
return true;
} catch (Exception e) {
Log.e(TAG, "Database exception", e);
return false;
}
}
Qui è l'eccezione ottengo:
java.sql.SQLException: Problems executing Android statement: DELETE FROM `recent_searches` WHERE (`search_text` = '' AND `location_text` = 'Villefranche-d'Allier, Allier')
at com.j256.ormlite.misc.SqlExceptionUtil.create(SqlExceptionUtil.java:22)
at com.j256.ormlite.android.AndroidCompiledStatement.runUpdate(AndroidCompiledStatement.java:66)
at com.j256.ormlite.stmt.StatementExecutor.delete(StatementExecutor.java:425)
at com.j256.ormlite.dao.BaseDaoImpl.delete(BaseDaoImpl.java:347)
...
Caused by: android.database.sqlite.SQLiteException: near "Allier": syntax error: , while compiling: DELETE FROM `recent_searches` WHERE (`search_text` = '' AND `location_text` = 'Villefranche-d'Allier, Allier')
at android.database.sqlite.SQLiteCompiledSql.native_compile(Native Method)
at android.database.sqlite.SQLiteCompiledSql.compile(SQLiteCompiledSql.java:92)
at android.database.sqlite.SQLiteCompiledSql.<init>(SQLiteCompiledSql.java:65)
at android.database.sqlite.SQLiteProgram.<init>(SQLiteProgram.java:83)
at android.database.sqlite.SQLiteStatement.<init>(SQLiteStatement.java:41)
at android.database.sqlite.SQLiteDatabase.compileStatement(SQLiteDatabase.java:1149)
correlati a http://stackoverflow.com/questions/5280227/sql-exception-preparing-query-with-ormlite e http://stackoverflow.com/questions/6400782/ormlite-escape-string-method – Gray