summaryrefslogtreecommitdiff
path: root/app/Model/TaskLink.php
blob: a89e6ca3cfbcc44f1b5d6e1263e632a1dd4297f1 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
<?php

namespace Model;

use SimpleValidator\Validator;
use SimpleValidator\Validators;
use PicoDb\Table;

/**
 * TaskLink model
 *
 * @package model
 * @author  Olivier Maridat
 * @author  Frederic Guillot
 */
class TaskLink extends Base
{
    /**
     * SQL table name
     *
     * @var string
     */
    const TABLE = 'task_has_links';

    /**
     * Get a task link
     *
     * @access public
     * @param  integer   $task_link_id   Task link id
     * @return array
     */
    public function getById($task_link_id)
    {
        return $this->db->table(self::TABLE)->eq('id', $task_link_id)->findOne();
    }

    /**
     * Get the opposite task link (use the unique index task_has_links_unique)
     *
     * @access public
     * @param  array     $task_link
     * @return array
     */
    public function getOppositeTaskLink(array $task_link)
    {
        $opposite_link_id = $this->link->getOppositeLinkId($task_link['link_id']);

        return $this->db->table(self::TABLE)
                    ->eq('opposite_task_id', $task_link['task_id'])
                    ->eq('task_id', $task_link['opposite_task_id'])
                    ->eq('link_id', $opposite_link_id)
                    ->findOne();
    }

    /**
     * Get all links attached to a task
     *
     * @access public
     * @param  integer   $task_id   Task id
     * @return array
     */
    public function getAll($task_id)
    {
        return $this->db
                    ->table(self::TABLE)
                    ->columns(
                        self::TABLE.'.id',
                        self::TABLE.'.opposite_task_id AS task_id',
                        Link::TABLE.'.label',
                        Task::TABLE.'.title',
                        Task::TABLE.'.is_active',
                        Task::TABLE.'.project_id',
                        Task::TABLE.'.time_spent AS task_time_spent',
                        Task::TABLE.'.time_estimated AS task_time_estimated',
                        Task::TABLE.'.owner_id AS task_assignee_id',
                        User::TABLE.'.username AS task_assignee_username',
                        User::TABLE.'.name AS task_assignee_name',
                        Board::TABLE.'.title AS column_title'
                    )
                    ->eq(self::TABLE.'.task_id', $task_id)
                    ->join(Link::TABLE, 'id', 'link_id')
                    ->join(Task::TABLE, 'id', 'opposite_task_id')
                    ->join(Board::TABLE, 'id', 'column_id', Task::TABLE)
                    ->join(User::TABLE, 'id', 'owner_id', Task::TABLE)
                    ->orderBy(Link::TABLE.'.id ASC, '.Board::TABLE.'.position DESC, '.Task::TABLE.'.is_active DESC, '.Task::TABLE.'.position ASC, '.Task::TABLE.'.id', Table::SORT_ASC)
                    ->findAll();
    }

    /**
     * Get all links attached to a task grouped by label
     *
     * @access public
     * @param  integer   $task_id   Task id
     * @return array
     */
    public function getAllGroupedByLabel($task_id)
    {
        $links = $this->getAll($task_id);
        $result = array();

        foreach ($links as $link) {

            if (! isset($result[$link['label']])) {
                $result[$link['label']] = array();
            }

            $result[$link['label']][] = $link;
        }

        return $result;
    }

    /**
     * Create a new link
     *
     * @access public
     * @param  integer   $task_id            Task id
     * @param  integer   $opposite_task_id   Opposite task id
     * @param  integer   $link_id            Link id
     * @return integer                       Task link id
     */
    public function create($task_id, $opposite_task_id, $link_id)
    {
        $this->db->startTransaction();

        // Get opposite link
        $opposite_link_id = $this->link->getOppositeLinkId($link_id);

        // Create the original task link
        $this->db->table(self::TABLE)->insert(array(
            'task_id' => $task_id,
            'opposite_task_id' => $opposite_task_id,
            'link_id' => $link_id,
        ));

        $task_link_id = $this->db->getLastId();

        // Create the opposite task link
        $this->db->table(self::TABLE)->insert(array(
            'task_id' => $opposite_task_id,
            'opposite_task_id' => $task_id,
            'link_id' => $opposite_link_id,
        ));

        $this->db->closeTransaction();

        return (int) $task_link_id;
    }

    /**
     * Update a task link
     *
     * @access public
     * @param  integer   $task_link_id          Task link id
     * @param  integer   $task_id               Task id
     * @param  integer   $opposite_task_id      Opposite task id
     * @param  integer   $link_id               Link id
     * @return boolean
     */
    public function update($task_link_id, $task_id, $opposite_task_id, $link_id)
    {
        $this->db->startTransaction();

        // Get original task link
        $task_link = $this->getById($task_link_id);

        // Find opposite task link
        $opposite_task_link = $this->getOppositeTaskLink($task_link);

        // Get opposite link
        $opposite_link_id = $this->link->getOppositeLinkId($link_id);

        // Update the original task link
        $rs1 = $this->db->table(self::TABLE)->eq('id', $task_link_id)->update(array(
            'task_id' => $task_id,
            'opposite_task_id' => $opposite_task_id,
            'link_id' => $link_id,
        ));

        // Update the opposite link
        $rs2 = $this->db->table(self::TABLE)->eq('id', $opposite_task_link['id'])->update(array(
            'task_id' => $opposite_task_id,
            'opposite_task_id' => $task_id,
            'link_id' => $opposite_link_id,
        ));

        $this->db->closeTransaction();

        return $rs1 && $rs2;
    }

    /**
     * Remove a link between two tasks
     *
     * @access public
     * @param  integer   $task_link_id
     * @return boolean
     */
    public function remove($task_link_id)
    {
        $this->db->startTransaction();

        $link = $this->getById($task_link_id);
        $link_id = $this->link->getOppositeLinkId($link['link_id']);

        $this->db->table(self::TABLE)->eq('id', $task_link_id)->remove();

        $this->db
            ->table(self::TABLE)
            ->eq('opposite_task_id', $link['task_id'])
            ->eq('task_id', $link['opposite_task_id'])
            ->eq('link_id', $link_id)->remove();

        $this->db->closeTransaction();

        return true;
    }

    /**
     * Common validation rules
     *
     * @access private
     * @return array
     */
    private function commonValidationRules()
    {
        return array(
            new Validators\Required('task_id', t('Field required')),
            new Validators\Required('opposite_task_id', t('Field required')),
            new Validators\Required('link_id', t('Field required')),
            new Validators\NotEquals('opposite_task_id', 'task_id', t('A task cannot be linked to itself')),
            new Validators\Exists('opposite_task_id', t('This linked task id doesn\'t exists'), $this->db->getConnection(), Task::TABLE, 'id')
        );
    }

    /**
     * Validate creation
     *
     * @access public
     * @param  array   $values           Form values
     * @return array   $valid, $errors   [0] = Success or not, [1] = List of errors
     */
    public function validateCreation(array $values)
    {
        $v = new Validator($values, $this->commonValidationRules());

        return array(
            $v->execute(),
            $v->getErrors()
        );
    }

    /**
     * Validate modification
     *
     * @access public
     * @param  array   $values           Form values
     * @return array   $valid, $errors   [0] = Success or not, [1] = List of errors
     */
    public function validateModification(array $values)
    {
        $rules = array(
            new Validators\Required('id', t('Field required')),
        );

        $v = new Validator($values, array_merge($rules, $this->commonValidationRules()));

        return array(
            $v->execute(),
            $v->getErrors()
        );
    }
}