mirror of https://github.com/tasks/tasks
Restore Astrid2TaskProvider
Alex Baker
10 years ago
parent
b0aaceb952
commit
fac28c9ebc
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/**
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* Copyright (c) 2012 Todoroo Inc
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*
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* See the file "LICENSE" for the full license governing this code.
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*/
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package com.todoroo.astrid.provider;
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import android.content.ContentValues;
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import android.content.Context;
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import android.content.UriMatcher;
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import android.database.Cursor;
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import android.database.MatrixCursor;
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import android.net.Uri;
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import com.todoroo.andlib.data.TodorooCursor;
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import com.todoroo.andlib.sql.Criterion;
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import com.todoroo.andlib.sql.Query;
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import com.todoroo.andlib.utility.DateUtilities;
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import com.todoroo.astrid.core.SortHelper;
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import com.todoroo.astrid.dao.TaskDao.TaskCriteria;
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import com.todoroo.astrid.data.Task;
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import com.todoroo.astrid.service.TaskService;
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import com.todoroo.astrid.tags.TagService;
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import com.todoroo.astrid.tags.TagService.Tag;
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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import org.tasks.injection.InjectingContentProvider;
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import java.math.BigInteger;
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import java.security.MessageDigest;
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import java.security.NoSuchAlgorithmException;
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import javax.inject.Inject;
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import dagger.Lazy;
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/**
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* This is the legacy Astrid task provider. While it will continue to be
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* supported, note that it does not expose all of the information in
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* Astrid, nor does it support many editing operations.
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*
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* See the individual methods for a description of what is returned.
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*
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* @author Tim Su <tim@todoroo.com>
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*
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*/
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public class Astrid2TaskProvider extends InjectingContentProvider {
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private static final Logger log = LoggerFactory.getLogger(Astrid2TaskProvider.class);
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public static final String AUTHORITY = "org.tasks.tasksprovider";
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public static final Uri CONTENT_URI = Uri.parse("content://org.tasks.tasksprovider");
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private static final UriMatcher URI_MATCHER = new UriMatcher(UriMatcher.NO_MATCH);
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private static final int MAX_NUMBER_OF_TASKS = 100;
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private final static String NAME = "name";
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private final static String IMPORTANCE_COLOR = "importance_color";
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private final static String IDENTIFIER = "identifier";
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private final static String PREFERRED_DUE_DATE = "preferredDueDate";
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private final static String DEFINITE_DUE_DATE = "definiteDueDate";
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private final static String IMPORTANCE = "importance";
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private final static String ID = "id";
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// fake property for updating that completes a task
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private final static String COMPLETED = "completed";
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private final static String TAGS_ID = "tags_id";
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static String[] TASK_FIELD_LIST = new String[] { NAME, IMPORTANCE_COLOR, PREFERRED_DUE_DATE, DEFINITE_DUE_DATE,
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IMPORTANCE, IDENTIFIER, TAGS_ID };
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static String[] TAGS_FIELD_LIST = new String[] { ID, NAME };
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private static final int URI_TASKS = 0;
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private static final int URI_TAGS = 1;
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private static final String TAG_SEPARATOR = "|";
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@Inject Lazy<TaskService> taskService;
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@Inject Lazy<TagService> tagService;
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static {
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URI_MATCHER.addURI(AUTHORITY, "tasks", URI_TASKS);
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URI_MATCHER.addURI(AUTHORITY, "tags", URI_TAGS);
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}
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@Override
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public int delete(Uri uri, String selection, String[] selectionArgs) {
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return 0;
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}
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@Override
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public String getType(Uri uri) {
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return null;
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}
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@Override
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public Uri insert(Uri uri, ContentValues values) {
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return null;
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}
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@Override
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public boolean onCreate() {
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super.onCreate();
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return false;
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}
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/**
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* Note: tag id is no longer a real column, so we pass in a UID
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* generated from the tag string.
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*
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* @return two-column cursor: tag id (string) and tag name
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*/
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public Cursor getTags() {
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Tag[] tags = tagService.get().getGroupedTags(TagService.GROUPED_TAGS_BY_SIZE,
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Criterion.all);
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MatrixCursor ret = new MatrixCursor(TAGS_FIELD_LIST);
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for (Tag tag : tags) {
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Object[] values = new Object[2];
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values[0] = tagNameToLong(tag.tag);
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values[1] = tag.tag;
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ret.addRow(values);
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}
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return ret;
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}
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private long tagNameToLong(String tag) {
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MessageDigest m;
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try {
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m = MessageDigest.getInstance("MD5");
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} catch (NoSuchAlgorithmException e) {
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log.error(e.getMessage(), e);
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return -1;
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}
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m.update(tag.getBytes(), 0, tag.length());
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return new BigInteger(1, m.digest()).longValue();
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}
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/**
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* Cursor with the following columns
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* <ol>
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* <li>task title, string
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* <li>task importance color, int android RGB color
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* <li>task due date (was: preferred due date), long millis since epoch
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* <li>task due date (was: absolute due date), long millis since epoch
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* <li>task importance, integer from 0 to 3 (0 => most important)
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* <li>task id, long
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* <li>task tags, string tags separated by |
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* </ol>
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*
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* @return cursor as described above
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*/
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public Cursor getTasks() {
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MatrixCursor ret = new MatrixCursor(TASK_FIELD_LIST);
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TodorooCursor<Task> cursor = taskService.get().query(Query.select(Task.ID, Task.TITLE,
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Task.IMPORTANCE, Task.DUE_DATE).where(Criterion.and(TaskCriteria.isActive(),
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TaskCriteria.isVisible())).
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orderBy(SortHelper.defaultTaskOrder()).limit(MAX_NUMBER_OF_TASKS));
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try {
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int[] importanceColors = Task.getImportanceColors(getContext().getResources());
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for (int i = 0; i < cursor.getCount(); i++) {
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cursor.moveToNext();
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Task task = new Task(cursor);
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String taskTags = tagService.get().getTagsAsString(task.getId(), TAG_SEPARATOR);
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Object[] values = new Object[7];
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values[0] = task.getTitle();
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values[1] = importanceColors[task.getImportance()];
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values[2] = task.getDueDate();
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values[3] = task.getDueDate();
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values[4] = task.getImportance();
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values[5] = task.getId();
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values[6] = taskTags;
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ret.addRow(values);
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}
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} finally {
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cursor.close();
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}
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return ret;
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}
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@Override
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public Cursor query(Uri uri, String[] projection, String selection, String[] selectionArgs, String sortOrder) {
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Cursor cursor;
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switch (URI_MATCHER.match(uri)) {
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case URI_TASKS:
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cursor = getTasks();
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break;
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case URI_TAGS:
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cursor = getTags();
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break;
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default:
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throw new IllegalStateException("Unrecognized URI:" + uri);
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}
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return cursor;
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}
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@Override
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public int update(Uri uri, ContentValues values, String selection, String[] selectionArgs) {
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switch (URI_MATCHER.match(uri)) {
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case URI_TASKS:
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Task task = new Task();
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// map values
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if(values.containsKey(NAME)) {
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task.setTitle(values.getAsString(NAME));
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}
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if(values.containsKey(PREFERRED_DUE_DATE)) {
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task.setDueDate(values.getAsLong(PREFERRED_DUE_DATE));
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}
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if(values.containsKey(DEFINITE_DUE_DATE)) {
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task.setDueDate(values.getAsLong(DEFINITE_DUE_DATE));
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}
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if(values.containsKey(IMPORTANCE)) {
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task.setImportance(values.getAsInteger(IMPORTANCE));
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}
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if(values.containsKey(COMPLETED)) {
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task.setCompletionDate(values.getAsBoolean(COMPLETED) ? DateUtilities.now() : 0);
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}
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// map selection criteria
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String criteria = selection.replace(NAME, Task.TITLE.name).
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replace(PREFERRED_DUE_DATE, Task.DUE_DATE.name).
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replace(DEFINITE_DUE_DATE, Task.DUE_DATE.name).
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replace(IDENTIFIER, Task.ID.name).
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replace(ID, Task.ID.name).
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replace(IMPORTANCE, Task.IMPORTANCE.name);
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return taskService.get().updateBySelection(criteria, selectionArgs, task);
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case URI_TAGS:
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throw new UnsupportedOperationException("tags updating: not yet");
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default:
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throw new IllegalStateException("Unrecognized URI:" + uri);
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}
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}
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public static void notifyDatabaseModification(Context context) {
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try {
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context.getContentResolver().notifyChange(CONTENT_URI, null);
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} catch (Exception e) {
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log.error(e.getMessage(), e);
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}
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}
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}
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