Emmanuel BENOîT
2051303262
The previous implementation of sub-tasks did not work as expected: it was possible to mark sub-tasks as completed before the parent task's dependencies were satisfied. In addition, it was impossible to retrieve a task's path from the database without running a recursive query. Full paths to sub-tasks added to views, since it is now possible to obtain them.
314 lines
9 KiB
PHP
314 lines
9 KiB
PHP
<?php
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class DAO_Tasks
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extends DAO
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{
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private static $priorities = array(
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'1' => 'Lowest' ,
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'2' => 'Low' ,
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'3' => 'Normal' ,
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'4' => 'High' ,
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'5' => 'Very high' ,
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);
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public function translatePriority( $value )
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{
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return DAO_Tasks::$priorities[ "$value" ];
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}
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public function getAllTasks( )
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{
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return $this->query(
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'SELECT * FROM tasks_list '
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. 'ORDER BY ( CASE '
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. 'WHEN completed_at IS NULL THEN '
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. 'priority '
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. 'ELSE '
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. '-1 '
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. 'END ) DESC , badness , added_at DESC' )->execute( );
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}
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public function getAllActiveTasks( )
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{
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return $this->query(
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'SELECT * FROM tasks_list '
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. 'WHERE completed_at IS NULL AND badness = 0 '
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. 'ORDER BY priority DESC , added_at DESC' )->execute( );
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}
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public function getAllBlockedTasks( )
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{
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return $this->query(
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'SELECT * FROM tasks_list '
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. 'WHERE badness <> 0 '
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. 'ORDER BY priority DESC , badness , added_at DESC' )->execute( );
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}
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public function getTasksAt( Data_Item $item )
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{
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return $this->query(
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'SELECT * FROM tasks_list '
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. 'WHERE item = $1 AND parent_task IS NULL '
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. 'ORDER BY ( CASE '
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. 'WHEN completed_at IS NULL THEN '
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. 'priority '
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. 'ELSE '
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. '-1 '
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. 'END ) DESC , badness , added_at DESC'
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)->execute( $item->id );
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}
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public function getUserTasks( $user )
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{
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return $this->query(
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'SELECT * FROM tasks_list '
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. 'WHERE assigned_to_id = $1 '
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. 'ORDER BY priority DESC , badness , added_at DESC'
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)->execute( $user->user_id );
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}
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public function addTask( $item , $title , $priority , $description )
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{
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$result = $this->query( 'SELECT add_task( $1 , $2 , $3 , $4 , $5 ) AS error' )
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->execute( $item , $title , $description , $priority , $_SESSION[ 'uid' ] );
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return $result[0]->error;
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}
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public function addNestedTask( $parent , $title , $priority , $description )
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{
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$result = $this->query( 'SELECT tasks_add_nested( $1 , $2 , $3 , $4 , $5 ) AS error' )
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->execute( $parent , $title , $description , $priority , $_SESSION[ 'uid' ] );
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return $result[0]->error;
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}
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public function get( $id )
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{
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$result = $this->query( 'SELECT * FROM tasks_single_view WHERE id = $1' )->execute( $id );
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if ( empty( $result ) ) {
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return null;
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}
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$task = $result[ 0 ];
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$task->notes = $this->query(
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'SELECT n.note_id AS id , n.user_id AS uid , u.user_view_name AS author , '
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. 'n.note_added AS added_at , n.note_text AS "text" '
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. 'FROM notes n '
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. 'INNER JOIN users_view u USING (user_id) '
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. 'WHERE n.task_id = $1 '
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. 'ORDER BY n.note_added DESC' )->execute( $id );
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$task->subtasks = $this->query(
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'SELECT * FROM tasks_list '
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. 'WHERE parent_task = $1 '
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. 'ORDER BY ( CASE '
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. 'WHEN completed_at IS NULL THEN '
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. 'priority '
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. 'ELSE '
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. '-1 '
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. 'END ) DESC , badness , added_at DESC'
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)->execute( $id );
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$task->moveDownTargets = $this->query(
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'SELECT * FROM tasks_move_down_targets '
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. 'WHERE task_id = $1 '
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. 'ORDER BY target_title' )->execute( $id );
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$task->dependencies = $this->query(
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'SELECT t.task_id AS id , t.task_title AS title , t.item_id AS item , '
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. 'i.item_name AS item_name , '
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. '( ct.completed_task_time IS NOT NULL ) AS completed , '
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. 'tl.badness AS missing_dependencies '
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. 'FROM task_dependencies td '
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. 'INNER JOIN tasks t ON t.task_id = td.task_id_depends '
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. 'INNER JOIN tasks_list tl ON tl.id = t.task_id '
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. 'LEFT OUTER JOIN items i USING ( item_id ) '
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. 'LEFT OUTER JOIN completed_tasks ct ON ct.task_id = t.task_id '
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. 'WHERE td.task_id = $1 '
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. 'ORDER BY i.item_name , t.task_priority DESC , t.task_title' )->execute( $id );
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$task->reverseDependencies = $this->query(
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'SELECT t.task_id AS id , t.task_title AS title , t.item_id AS item , '
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. 'i.item_name AS item_name , '
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. '( ct.completed_task_time IS NOT NULL ) AS completed '
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. 'FROM task_dependencies td '
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. 'INNER JOIN tasks t USING( task_id ) '
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. 'LEFT OUTER JOIN items i USING ( item_id ) '
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. 'LEFT OUTER JOIN completed_tasks ct ON t.task_id = ct.task_id '
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. 'WHERE td.task_id_depends = $1 '
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. 'ORDER BY i.item_name , t.task_priority DESC , t.task_title' )->execute( $id );
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$task->possibleDependencies = $this->query(
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'SELECT t.task_id AS id , t.task_title AS title , t.item_id AS item , '
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. 'i.item_name AS item_name '
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. 'FROM tasks_possible_dependencies( $1 ) t '
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. 'LEFT OUTER JOIN items i USING ( item_id ) '
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. 'ORDER BY i.item_name , t.task_priority , t.task_title' )->execute( $id );
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$task->lineage = null;
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return $task;
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}
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public function getLineage( $task )
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{
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if ( ! in_array( 'lineage' , get_object_vars( $task ) ) || $task->lineage === null ) {
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$result = $this->query(
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'SELECT task_id , task_title '
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. 'FROM tasks_tree tt '
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. 'INNER JOIN tasks '
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. 'ON task_id = tt.task_id_parent '
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. 'WHERE task_id_child = $1 AND tt_depth > 0 '
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. 'ORDER BY tt_depth DESC'
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)->execute( $task->id );
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$task->lineage = array( );
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foreach ( $result as $row ) {
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array_push( $task->lineage , array( $row->task_id , $row->task_title ) );
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}
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}
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return $task->lineage;
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}
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public function canDelete( $task )
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{
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if ( $task->completed_by !== null ) {
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$ts = strtotime( $task->completed_at );
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return ( time() - $ts > 7 * 3600 * 24 );
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}
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$ts = strtotime( $task->added_at );
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return ( time() - $ts < 600 ) && ( $task->uid == $_SESSION[ 'uid' ] );
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}
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public function canFinish( $task )
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{
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assert( $task->completed_at == null );
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return ( $task->badness == 0 );
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}
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public function canRestart( $task )
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{
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assert( $task->completed_at != null );
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foreach ( $task->reverseDependencies as $dependency ) {
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if ( $dependency->completed == 't' ) {
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return false;
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}
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}
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if ( $task->parent_task === null ) {
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return true;
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}
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$parent = ( $task->parent_task instanceof StdClass ) ? $task->parent_task : $this->get( $task->parent_task );
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return $parent->completed_by === null;
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}
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public function delete( $task )
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{
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$this->query( 'DELETE FROM tasks WHERE task_id = $1' )->execute( $task );
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}
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public function finish( $task , $noteText )
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{
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$this->query( 'SELECT finish_task( $1 , $2 , $3 )' )
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->execute( $task , $_SESSION[ 'uid' ] , $noteText );
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}
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public function restart( $task , $noteText )
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{
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$this->query( 'SELECT restart_task( $1 , $2 , $3 )' )
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->execute( $task , $_SESSION[ 'uid' ] , $noteText );
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}
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public function updateTask( $id , $item , $title , $priority , $description , $assignee )
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{
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$result = $this->query( 'SELECT update_task( $1 , $2 , $3 , $4 , $5 , $6 ) AS error' )
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->execute( $id , $item , $title , $description , $priority , $assignee );
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return $result[0]->error;
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}
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public function updateNestedTask( $id , $title , $priority , $description , $assignee )
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{
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$result = $this->query( 'SELECT update_task( $1 , $2 , $3 , $4 , $5 ) AS error' )
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->execute( $id , $title , $description , $priority , $assignee );
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return $result[0]->error;
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}
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public function addNote( $task , $note )
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{
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$this->query( 'INSERT INTO notes ( task_id , user_id , note_text ) VALUES ( $1 , $2 , $3 )' )
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->execute( $task , $_SESSION[ 'uid' ] , $note );
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}
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public function getNote( $id )
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{
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$query = $this->query(
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'SELECT n.note_id AS id , n.note_text AS text , n.note_added AS added_at , '
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. 'n.task_id AS task , '
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. '( n.user_id = $2 AND t.task_id IS NULL ) AS editable '
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. 'FROM notes n '
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. 'LEFT OUTER JOIN completed_tasks t USING (task_id) '
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. 'WHERE n.note_id = $1' );
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$result = $query->execute( $id , $_SESSION[ 'uid' ] );
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if ( empty( $result ) ) {
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return null;
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}
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$result[ 0 ]->editable = ( $result[ 0 ]->editable == 't' );
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return $result[ 0 ];
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}
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public function deleteNote( $id )
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{
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$this->query( 'DELETE FROM notes WHERE note_id = $1' )->execute( $id );
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}
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public function updateNote( $id , $text )
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{
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$this->query( 'UPDATE notes SET note_text = $2 , note_added = now( ) WHERE note_id = $1' )
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->execute( $id , $text );
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}
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public function addDependency( $id , $dependency )
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{
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$result = $this->query( 'SELECT tasks_add_dependency( $1 , $2 ) AS error' )
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->execute( $id , $dependency );
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return $result[0]->error;
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}
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public function deleteDependency( $from , $to )
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{
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$this->query( 'DELETE FROM task_dependencies WHERE task_id = $1 AND task_id_depends = $2' )
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->execute( $from , $to );
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}
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public function assignTaskTo( $task , $user )
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{
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$this->query(
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'UPDATE tasks _task SET user_id_assigned = $2 '
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. 'FROM tasks _task2 '
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. 'LEFT OUTER JOIN completed_tasks _completed '
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. 'USING ( task_id ) '
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. 'WHERE _task2.task_id = _task.task_id AND _completed.task_id IS NULL AND _task.task_id = $1'
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)->execute( $task , $user );
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}
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public function moveUp( $task , $force = false )
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{
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$result = $this->query( 'SELECT tasks_move_up( $1 , $2 ) AS success')
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->execute( $task->id , $force ? 't' : 'f' );
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return ( $result[0]->success == 't' );
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}
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public function moveDown( $task , $sibling , $force )
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{
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$result = $this->query( 'SELECT tasks_move_down( $1 , $2 , $3 ) AS success')
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->execute( $task->id , $sibling , $force ? 't' : 'f' );
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return ( $result[0]->success == 't' );
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}
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}
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