/*
- * Copyright © 2019 Damyan Ivanov.
+ * Copyright © 2021 Damyan Ivanov.
* This file is part of MoLe.
* MoLe is free software: you can distribute it and/or modify it
* under the term of the GNU General Public License as published by
package net.ktnx.mobileledger.utils;
-import android.annotation.TargetApi;
-import android.content.Context;
import android.database.Cursor;
-import android.database.MatrixCursor;
import android.database.sqlite.SQLiteDatabase;
import android.os.AsyncTask;
-import android.os.Build;
-import android.provider.FontsContract;
-import android.view.View;
-import android.widget.AutoCompleteTextView;
-import android.widget.FilterQueryProvider;
-import android.widget.SimpleCursorAdapter;
+
+import androidx.annotation.NonNull;
import net.ktnx.mobileledger.App;
import net.ktnx.mobileledger.async.DbOpQueue;
-import net.ktnx.mobileledger.async.DescriptionSelectedCallback;
-import net.ktnx.mobileledger.model.Data;
-import net.ktnx.mobileledger.model.MobileLedgerProfile;
import org.jetbrains.annotations.NonNls;
-import java.util.Locale;
-
import static net.ktnx.mobileledger.utils.Logger.debug;
public final class MLDB {
public static final String DESCRIPTION_HISTORY_TABLE = "description_history";
public static final String OPT_LAST_SCRAPE = "last_scrape";
@NonNls
- public static final String OPT_PROFILE_UUID = "profile_uuid";
+ public static final String OPT_PROFILE_ID = "profile_id";
private static final String NO_PROFILE = "-";
@SuppressWarnings("unused")
static public int getIntOption(String name, int default_value) {
@Override
protected String doInBackground(Void... params) {
SQLiteDatabase db = App.getDatabase();
- try (Cursor cursor = db
- .rawQuery("select value from options where profile = ? and name=?",
- new String[]{NO_PROFILE, name}))
+ try (Cursor cursor = db.rawQuery(
+ "select value from options where profile=? and name=?",
+ new String[]{NO_PROFILE, name}))
{
if (cursor.moveToFirst()) {
String result = cursor.getString(0);
- if (result == null) result = defaultValue;
+ if (result == null)
+ result = defaultValue;
debug("async-db", "option " + name + "=" + result);
return result;
}
- else return defaultValue;
+ else
+ return defaultValue;
}
catch (Exception e) {
debug("db", "returning default value for " + name, e);
static public String getOption(String name, String default_value) {
debug("db", "about to fetch option " + name);
SQLiteDatabase db = App.getDatabase();
- try (Cursor cursor = db.rawQuery("select value from options where profile = ? and name=?",
+ try (Cursor cursor = db.rawQuery("select value from options where profile=? and name=?",
new String[]{NO_PROFILE, name}))
{
if (cursor.moveToFirst()) {
String result = cursor.getString(0);
- if (result == null) result = default_value;
+ if (result == null)
+ result = default_value;
debug("db", "option " + name + "=" + result);
return result;
}
- else return default_value;
+ else
+ return default_value;
}
catch (Exception e) {
debug("db", "returning default value for " + name, e);
static public void setLongOption(String name, long value) {
setOption(name, String.valueOf(value));
}
- @TargetApi(Build.VERSION_CODES.N)
- public static void hookAutocompletionAdapter(final Context context,
- final AutoCompleteTextView view,
- final String table, final String field) {
- hookAutocompletionAdapter(context, view, table, field, true, null, null, null);
- }
- @TargetApi(Build.VERSION_CODES.N)
- public static void hookAutocompletionAdapter(final Context context,
- final AutoCompleteTextView view,
- final String table, final String field,
- final boolean profileSpecific, final View nextView,
- final DescriptionSelectedCallback callback,
- final MobileLedgerProfile profile) {
- String[] from = {field};
- int[] to = {android.R.id.text1};
- SimpleCursorAdapter adapter =
- new SimpleCursorAdapter(context, android.R.layout.simple_dropdown_item_1line, null,
- from, to, 0);
- adapter.setStringConversionColumn(1);
-
- FilterQueryProvider provider = constraint -> {
- if (constraint == null) return null;
-
- String str = constraint.toString().toUpperCase();
- debug("autocompletion", "Looking for " + str);
- String[] col_names = {FontsContract.Columns._ID, field};
- MatrixCursor c = new MatrixCursor(col_names);
+ public static void queryInBackground(@NonNull String statement, String[] params,
+ @NonNull final CallbackHelper callbackHelper) {
+ /* All callbacks are called in the new (asynchronous) thread! */
+ Thread t = new Thread(() -> {
+ callbackHelper.onStart();
+ try {
+ SQLiteDatabase db = App.getDatabase();
- String sql;
- String[] params;
- if (profileSpecific) {
- MobileLedgerProfile p = (profile == null) ? Data.profile.getValue() : profile;
- if (p == null) throw new AssertionError();
- sql = String.format("SELECT %s as a, case when %s_upper LIKE ?||'%%' then 1 " +
- "WHEN %s_upper LIKE '%%:'||?||'%%' then 2 " +
- "WHEN %s_upper LIKE '%% '||?||'%%' then 3 else 9 end " +
- "FROM %s " +
- "WHERE profile=? AND %s_upper LIKE '%%'||?||'%%' " +
- "ORDER BY 2, 1;", field, field, field, field, table, field);
- params = new String[]{str, str, str, p.getUuid(), str};
+ try (Cursor cursor = db.rawQuery(statement, params)) {
+ boolean gotRow = false;
+ while (cursor.moveToNext()) {
+ gotRow = true;
+ if (!callbackHelper.onRow(cursor))
+ break;
+ }
+ if (!gotRow) {
+ callbackHelper.onNoRows();
+ }
+ }
}
- else {
- sql = String.format("SELECT %s as a, case when %s_upper LIKE ?||'%%' then 1 " +
- "WHEN %s_upper LIKE '%%:'||?||'%%' then 2 " +
- "WHEN %s_upper LIKE '%% '||?||'%%' then 3 " + "else 9 end " +
- "FROM %s " + "WHERE %s_upper LIKE '%%'||?||'%%' " +
- "ORDER BY 2, 1;", field, field, field, field, table, field);
- params = new String[]{str, str, str, str};
+ catch (Exception e) {
+ callbackHelper.onException(e);
}
- debug("autocompletion", sql);
- SQLiteDatabase db = App.getDatabase();
-
- try (Cursor matches = db.rawQuery(sql, params)) {
- int i = 0;
- while (matches.moveToNext()) {
- String match = matches.getString(0);
- int order = matches.getInt(1);
- debug("autocompletion",
- String.format(Locale.ENGLISH, "match: %s |%d", match, order));
- c.newRow().add(i++).add(match);
- }
+ finally {
+ callbackHelper.onDone();
}
+ });
- return c;
-
- };
-
- adapter.setFilterQueryProvider(provider);
-
- view.setAdapter(adapter);
-
- if (nextView != null) {
- view.setOnItemClickListener((parent, itemView, position, id) -> {
- nextView.requestFocus(View.FOCUS_FORWARD);
- if (callback != null) {
- callback.descriptionSelected(String.valueOf(view.getText()));
- }
- });
+ t.start();
+ }
+ /* MLDB.CallbackHelper -- Abstract class for asynchronous SQL query callbacks */
+ @SuppressWarnings("WeakerAccess")
+ abstract public static class CallbackHelper {
+ public void onStart() {}
+ public abstract boolean onRow(@NonNull Cursor cursor);
+ public void onNoRows() {}
+ public void onException(Exception exception) {
+ Logger.debug("MLDB", "Exception in asynchronous SQL", exception);
}
+ public void onDone() {}
}
}
projects / mobile-ledger.git / blobdiff