Searching for full-text fields

app/src/main/java/org/houxg/leamonax/database/AppDataBase.java

@@ -19,7 +19,7 @@ import org.houxg.leamonax.model.RelationshipOfNoteTag;
 import org.houxg.leamonax.model.Tag;
 import org.houxg.leamonax.model.Tag_Table;
 
-@Database(name = "leanote_db", version = 4)
+@Database(name = "leanote_db", version = 5)
 public class AppDataBase {
 
     @Migration(version = 2, database = AppDataBase.class)
@@ -157,4 +157,12 @@ public class AppDataBase {
             cursor.close();
         }
     }
+
+    @Migration(version = 5, database = AppDataBase.class)
+    public static class UpdateNoteContentToFTS extends BaseMigration {
+        @Override
+        public void migrate(DatabaseWrapper database) {
+            database.execSQL("CREATE VIRTUAL TABLE fts_note USING fts4 (content='note', content)");
+        }
+    }
 }

app/src/main/java/org/houxg/leamonax/database/NoteDataStore.java

@@ -1,10 +1,14 @@
 package org.houxg.leamonax.database;
 
 
+import android.database.Cursor;
+
+import com.raizlabs.android.dbflow.config.FlowManager;
 import com.raizlabs.android.dbflow.sql.language.Join;
 import com.raizlabs.android.dbflow.sql.language.NameAlias;
 import com.raizlabs.android.dbflow.sql.language.SQLite;
 import com.raizlabs.android.dbflow.sql.language.property.IProperty;
+import com.raizlabs.android.dbflow.structure.database.DatabaseWrapper;
 
 import org.houxg.leamonax.model.Account;
 import org.houxg.leamonax.model.Note;
@@ -16,8 +20,10 @@ import org.houxg.leamonax.model.Tag;
 import org.houxg.leamonax.model.Tag_Table;
 
 import java.util.ArrayList;
+import java.util.LinkedHashSet;
 import java.util.List;
 import java.util.Locale;
+import java.util.Set;
 
 public class NoteDataStore {
     public static List<Note> searchByTitle(String keyword) {
@@ -31,6 +37,31 @@ public class NoteDataStore {
                 .queryList();
     }
 
+    public static List<Note> searchByFullTextSearch(String keyword) {
+        Set<Long> set = new LinkedHashSet<>();
+        DatabaseWrapper databaseWrapper = FlowManager.getWritableDatabase(AppDataBase.class);
+        String query = "select id from note where userid = ? and istrash = 0 and isdeleted = 0 and id in " +
+                "(select rowid from fts_note where fts_note match ?)";////查询Content中满足条件的记录
+        Cursor cursor = databaseWrapper.rawQuery(query, new String[]{Account.getCurrent().getUserId(), keyword});
+        while(cursor.moveToNext()) {
+            set.add(cursor.getLong(cursor.getColumnIndex("id")));
+        }
+        cursor.close();
+
+        query = "select id from note where userid = ? and istrash = 0 and isdeleted = 0 and title like ?";//查询title中满足条件的记录
+        cursor = databaseWrapper.rawQuery(query, new String[]{Account.getCurrent().getUserId(), "%" + keyword + "%"});//查询Content中满足条件的记录
+        while(cursor.moveToNext()) {
+            set.add(cursor.getLong(cursor.getColumnIndex("id")));
+        }
+        cursor.close();
+
+        return SQLite.select()
+                .from(Note.class)
+                .where(Note_Table.id.in(set))
+                .queryList();
+    }
+
+
     public static Note getByServerId(String serverId) {
         return SQLite.select()
                 .from(Note.class)

app/src/main/java/org/houxg/leamonax/ui/NoteFragment.java

@@ -163,7 +163,7 @@ public class NoteFragment extends Fragment implements NoteAdapter.NoteAdapterLis
                 notes = NoteDataStore.getByTagText(mode.tagText, Account.getCurrent().getUserId());
                 break;
             case SEARCH:
-                notes = NoteDataStore.searchByTitle(mode.keywords);
+                notes = NoteDataStore.searchByFullTextSearch(mode.keywords);
                 mNoteList.setHighlight(mode.keywords);
                 break;
             default: