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
|
<?php
/* vim: set expandtab sw=4 ts=4 sts=4: */
/**
* Contains abstract class to hold table preferences/statistics
*
* @package PhpMyAdmin
*/
if (! defined('PHPMYADMIN')) {
exit;
}
/**
* Table preferences/statistics
*
* This class preserves the table co-ordinates,fields
* and helps in drawing/generating the tables.
*
* @package PhpMyAdmin
* @abstract
*/
abstract class TableStats
{
protected $diagram;
protected $db;
protected $pageNumber;
protected $tableName;
protected $showKeys;
protected $showInfo;
public $displayfield;
public $fields = array();
public $primary = array();
public $x, $y;
public $width = 0;
public $heightCell = 0;
/**
* Constructor
*
* @param object $diagram schema diagram
* @param string $db current db name
* @param integer $pageNumber current page number (from the
* $cfg['Servers'][$i]['table_coords'] table)
* @param string $tableName table name
* @param boolean $showKeys whether to display keys or not
* @param boolean $showInfo whether to display table position or not
*/
public function __construct(
$diagram, $db, $pageNumber, $tableName, $showKeys, $showInfo
) {
$this->diagram = $diagram;
$this->db = $db;
$this->pageNumber = $pageNumber;
$this->tableName = $tableName;
$this->showKeys = $showKeys;
$this->showInfo = $showInfo;
// checks whether the table exists
// and loads fields
$this->validateTableAndLoadFields();
// load table coordinates
$this->loadCoordinates();
// loads display field
$this->loadDisplayField();
// loads primary keys
$this->loadPrimaryKey();
}
/**
* Validate whether the table exists.
*
* @return void
*/
protected function validateTableAndLoadFields()
{
$sql = 'DESCRIBE ' . PMA_Util::backquote($this->tableName);
$result = $GLOBALS['dbi']->tryQuery(
$sql, null, PMA_DatabaseInterface::QUERY_STORE
);
if (! $result || ! $GLOBALS['dbi']->numRows($result)) {
$this->showMissingTableError();
}
if ($this->showKeys) {
$indexes = PMA_Index::getFromTable($this->tableName, $this->db);
$all_columns = array();
foreach ($indexes as $index) {
$all_columns = array_merge(
$all_columns,
array_flip(array_keys($index->getColumns()))
);
}
$this->fields = array_keys($all_columns);
} else {
while ($row = $GLOBALS['dbi']->fetchRow($result)) {
$this->fields[] = $row[0];
}
}
}
/**
* Displays an error when the table cannot be found.
*
* @return void
* @abstract
*/
protected abstract function showMissingTableError();
/**
* Loads coordinates of a table
*
* @return void
*/
protected function loadCoordinates()
{
global $cfgRelation;
$sql = "SELECT x, y FROM "
. PMA_Util::backquote($GLOBALS['cfgRelation']['db']) . "."
. PMA_Util::backquote($cfgRelation['table_coords'])
. " WHERE db_name = '" . PMA_Util::sqlAddSlashes($this->db) . "'"
. " AND table_name = '" . PMA_Util::sqlAddSlashes($this->tableName) . "'"
. " AND pdf_page_number = " . $this->pageNumber;
$result = PMA_queryAsControlUser(
$sql, false, PMA_DatabaseInterface::QUERY_STORE
);
if (! $result || ! $GLOBALS['dbi']->numRows($result)) {
$this->showMissingCoordinatesError();
}
list($this->x, $this->y) = $GLOBALS['dbi']->fetchRow($result);
$this->x = (double) $this->x;
$this->y = (double) $this->y;
}
/**
* Displays an error on missing coordinates
*
* @return void
* @abstract
*/
protected abstract function showMissingCoordinatesError();
/**
* Loads the table's display field
*
* @return void
*/
protected function loadDisplayField()
{
$this->displayfield = PMA_getDisplayField($this->db, $this->tableName);
}
/**
* Loads the PRIMARY key.
*
* @return void
*/
protected function loadPrimaryKey()
{
$result = $GLOBALS['dbi']->query(
'SHOW INDEX FROM ' . PMA_Util::backquote($this->tableName) . ';',
null, PMA_DatabaseInterface::QUERY_STORE
);
if ($GLOBALS['dbi']->numRows($result) > 0) {
while ($row = $GLOBALS['dbi']->fetchAssoc($result)) {
if ($row['Key_name'] == 'PRIMARY') {
$this->primary[] = $row['Column_name'];
}
}
}
}
/**
* Returns title of the current table,
* title can have the dimensions/co-ordinates of the table
*
* @return string title of the current table
*/
protected function getTitle()
{
return ($this->showInfo
? sprintf('%.0fx%0.f', $this->width, $this->heightCell)
: ''
)
. ' ' . $this->tableName;
}
}
?>
|
