add flag to accounts indicating whether their commodity list is expanded

[mobile-ledger.git] / app / src / main / java / net / ktnx / mobileledger / utils / MLDB.java

diff --git a/app/src/main/java/net/ktnx/mobileledger/utils/MLDB.java b/app/src/main/java/net/ktnx/mobileledger/utils/MLDB.java
index 7da81f979063e0f9c458a07b4d9ca8604ac9c5c4..4568846fcb73480152feab5ba31e2e619c2bb430 100644 (file)
--- a/app/src/main/java/net/ktnx/mobileledger/utils/MLDB.java
+++ b/app/src/main/java/net/ktnx/mobileledger/utils/MLDB.java
@@ -45,9 +45,6 @@ import java.io.InputStream;
 import java.io.InputStreamReader;
 import java.util.Locale;
 
-import static net.ktnx.mobileledger.utils.MLDB.DatabaseMode.READ;
-import static net.ktnx.mobileledger.utils.MLDB.DatabaseMode.WRITE;
-
 public final class MLDB {
     public static final String ACCOUNTS_TABLE = "accounts";
     public static final String DESCRIPTION_HISTORY_TABLE = "description_history";
@@ -55,29 +52,21 @@ public final class MLDB {
     @NonNls
     public static final String OPT_PROFILE_UUID = "profile_uuid";
     private static final String NO_PROFILE = "-";
-    private static MobileLedgerDatabase helperForReading, helperForWriting;
+    private static MobileLedgerDatabase dbHelper;
     private static Application context;
     private static void checkState() {
         if (context == null)
             throw new IllegalStateException("First call init with a valid context");
     }
-    public static synchronized SQLiteDatabase getDatabase(DatabaseMode mode) {
+    public static SQLiteDatabase getDatabase() {
         checkState();
 
-        if (mode == READ) {
-            if (helperForReading == null) helperForReading = new MobileLedgerDatabase(context);
-            return helperForReading.getReadableDatabase();
-        }
-        else {
-            if (helperForWriting == null) helperForWriting = new MobileLedgerDatabase(context);
-            return helperForWriting.getWritableDatabase();
-        }
-    }
-    public static SQLiteDatabase getReadableDatabase() {
-        return getDatabase(READ);
-    }
-    public static SQLiteDatabase getWritableDatabase() {
-        return getDatabase(WRITE);
+        SQLiteDatabase db;
+
+        db = dbHelper.getWritableDatabase();
+
+        db.execSQL("pragma case_sensitive_like=ON;");
+        return db;
     }
     static public int getIntOption(String name, int default_value) {
         String s = getOption(name, String.valueOf(default_value));
@@ -101,7 +90,7 @@ public final class MLDB {
     }
     static public String getOption(String name, String default_value) {
         Log.d("db", "about to fetch option " + name);
-        SQLiteDatabase db = getReadableDatabase();
+        SQLiteDatabase db = getDatabase();
         try (Cursor cursor = db.rawQuery("select value from options where profile = ? and name=?",
                 new String[]{NO_PROFILE, name}))
         {
@@ -122,7 +111,7 @@ public final class MLDB {
     }
     static public void setOption(String name, String value) {
         Log.d("option", String.format("%s := %s", name, value));
-        SQLiteDatabase db = MLDB.getWritableDatabase();
+        SQLiteDatabase db = MLDB.getDatabase();
         db.execSQL("insert or replace into options(profile, name, value) values(?, ?, ?);",
                 new String[]{NO_PROFILE, name, value});
     }
@@ -140,8 +129,7 @@ public final class MLDB {
     public static void hookAutocompletionAdapter(final Context context,
                                                  final AutoCompleteTextView view,
                                                  final String table, final String field,
-                                                 final boolean profileSpecific,
-                                                 final View nextView,
+                                                 final boolean profileSpecific, final View nextView,
                                                  final DescriptionSelectedCallback callback) {
         String[] from = {field};
         int[] to = {android.R.id.text1};
@@ -178,7 +166,7 @@ public final class MLDB {
                 params = new String[]{str, str, str, str};
             }
             Log.d("autocompletion", sql);
-            SQLiteDatabase db = MLDB.getReadableDatabase();
+            SQLiteDatabase db = MLDB.getDatabase();
 
             try (Cursor matches = db.rawQuery(sql, params)) {
                 int i = 0;
@@ -207,22 +195,25 @@ public final class MLDB {
             });
         }
     }
-    public static void init(Application context) {
+    public static synchronized void init(Application context) {
         MLDB.context = context;
+        if (dbHelper != null)
+            throw new IllegalStateException("It appears init() was already called");
+        dbHelper = new MobileLedgerDatabase(context);
     }
-    public static void done() {
-        if (helperForReading != null) helperForReading.close();
-
-        if ((helperForWriting != helperForReading) && (helperForWriting != null))
-            helperForWriting.close();
+    public static synchronized void done() {
+        if (dbHelper != null) {
+            Log.d("db", "Closing DB helper");
+            dbHelper.close();
+            dbHelper = null;
+        }
     }
-
-    public enum DatabaseMode {READ, WRITE}
 }
 
 class MobileLedgerDatabase extends SQLiteOpenHelper implements AutoCloseable {
-    public static final String DB_NAME = "MoLe.db";
-    public static final int LATEST_REVISION = 19;
+    private static final String DB_NAME = "MoLe.db";
+    private static final int LATEST_REVISION = 21;
+    private static final String CREATE_DB_SQL = "create_db";
 
     private final Application mContext;
 
@@ -236,7 +227,7 @@ class MobileLedgerDatabase extends SQLiteOpenHelper implements AutoCloseable {
     @Override
     public void onCreate(SQLiteDatabase db) {
         Log.d("db", "onCreate called");
-        onUpgrade(db, -1, LATEST_REVISION);
+        applyRevisionFile(db, CREATE_DB_SQL);
     }
 
     @Override
@@ -246,15 +237,18 @@ class MobileLedgerDatabase extends SQLiteOpenHelper implements AutoCloseable {
     }
 
     private void applyRevision(SQLiteDatabase db, int rev_no) {
-        final Resources rm = mContext.getResources();
         String rev_file = String.format(Locale.US, "sql_%d", rev_no);
 
+        applyRevisionFile(db, rev_file);
+    }
+    private void applyRevisionFile(SQLiteDatabase db, String rev_file) {
+        final Resources rm = mContext.getResources();
         int res_id = rm.getIdentifier(rev_file, "raw", mContext.getPackageName());
         if (res_id == 0)
-            throw new SQLException(String.format(Locale.US, "No resource for revision %d", rev_no));
+            throw new SQLException(String.format(Locale.US, "No resource for %s", rev_file));
         db.beginTransaction();
         try (InputStream res = rm.openRawResource(res_id)) {
-            Log.d("db", "Applying revision " + String.valueOf(rev_no));
+            Log.d("db", "Applying " + rev_file);
             InputStreamReader isr = new InputStreamReader(res);
             BufferedReader reader = new BufferedReader(isr);
 
@@ -274,8 +268,7 @@ class MobileLedgerDatabase extends SQLiteOpenHelper implements AutoCloseable {
                 }
                 catch (Exception e) {
                     throw new RuntimeException(
-                            String.format("Error applying revision %d, line %d", rev_no, line_no),
-                            e);
+                            String.format("Error applying %s, line %d", rev_file, line_no), e);
                 }
                 line_no++;
             }
@@ -283,7 +276,7 @@ class MobileLedgerDatabase extends SQLiteOpenHelper implements AutoCloseable {
             db.setTransactionSuccessful();
         }
         catch (IOException e) {
-            Log.e("db", String.format("Error opening raw resource for revision %d", rev_no));
+            Log.e("db", String.format("Error opening raw resource for %s", rev_file));
             e.printStackTrace();
         }
         finally {