ILIAS  trunk Revision v12.0_alpha-377-g3641b37b9db
Public Member Functions | Protected Attributes
ilDBPdoReverse Class Reference

Class ilDBPdoReverse. More...

+ Inheritance diagram for ilDBPdoReverse:
+ Collaboration diagram for ilDBPdoReverse:

Public Member Functions

 __construct (protected \PDO $pdo, protected \ilDBPdo $db_instance)
 ilDBPdoReverse constructor. More...
 
 getQueryUtils ()
 
 getTableFieldDefinition (string $table_name, string $field_name)
 
 getTableIndexDefinition (string $table, string $constraint_name)
 
 getTableConstraintDefinition (string $table, string $index_name)
 
 getTriggerDefinition (string $trigger)
 
 getTableFieldDefinition (string $table_name, string $field_name)
 
 getTableIndexDefinition (string $table, string $constraint_name)
 
 getTableConstraintDefinition (string $table, string $index_name)
 
 getTriggerDefinition (string $trigger)
 

Protected Attributes

ilMySQLQueryUtils $query_utils = null
 

Detailed Description

Class ilDBPdoReverse.

Author
Fabian Schmid fs@st.nosp@m.uder.nosp@m.-raim.nosp@m.ann..nosp@m.ch

Definition at line 25 of file class.ilDBPdoReverse.php.

Constructor & Destructor Documentation

◆ __construct()

ilDBPdoReverse::__construct ( protected \PDO  $pdo,
protected \ilDBPdo  $db_instance 
)

ilDBPdoReverse constructor.

Definition at line 32 of file class.ilDBPdoReverse.php.

33 {
34 }

Member Function Documentation

◆ getQueryUtils()

ilDBPdoReverse::getQueryUtils ( )

Definition at line 36 of file class.ilDBPdoReverse.php.

36 : \ilMySQLQueryUtils
37 {
38 if ($this->query_utils === null) {
39 $this->query_utils = new ilMySQLQueryUtils($this->db_instance);
40 }
41
42 return $this->query_utils;
43 }
ilDBPdoReverse\$query_utils
ilMySQLQueryUtils $query_utils
Definition: class.ilDBPdoReverse.php:27
ilMySQLQueryUtils
Class ilMySQLQueryUtils.
Definition: class.ilMySQLQueryUtils.php:26

References $query_utils.

◆ getTableConstraintDefinition()

ilDBPdoReverse::getTableConstraintDefinition ( string  $table,
string  $index_name 
)
Returns
array<string, array<int|string, array<string, string|int>>&array>|array<string, bool>
Exceptions

ilDatabaseException

Implements ilDBReverse.

Definition at line 168 of file class.ilDBPdoReverse.php.

168 : array
169 {
170 $index_name = strtolower($index_name);
171 $table = $this->db_instance->quoteIdentifier($table, true);
172 $query = "SHOW INDEX FROM $table /*!50002 WHERE Key_name = %s */";
173
174 if (strtolower($index_name) !== 'primary') {
175 $constraint_name_pdo = $this->db_instance->getIndexName($index_name);
176 $result = $this->db_instance->query(sprintf($query, $this->db_instance->quote($constraint_name_pdo)));
177 $data = $this->db_instance->fetchAssoc($result);
178 if ($data) {
179 // apply 'idxname_format' only if the query succeeded, otherwise
180 // fallback to the given $index_name, without transformation
181 $index_name = strtolower($constraint_name_pdo);
182 }
183 }
184
185 $result = $this->db_instance->query(sprintf($query, $this->db_instance->quote($index_name)));
186
187 $colpos = 1;
188 $definition = [];
189 while (is_object($row = $result->fetchObject())) {
190 $row = (array) $row;
191 $row = array_change_key_case($row, CASE_LOWER);
192 $key_name = $row['key_name'];
193 if ($this->db_instance->options['portability'] ?? null) {
194 $key_name = strtolower((string) $key_name);
195 }
196 $key_name = strtolower((string) $key_name); // FSX fix
197 if ($index_name === $key_name) {
198 if ($row['non_unique']) {
199 throw new ilDatabaseException(' is not an existing table constraint');
200 }
201 if (strtolower((string) $row['key_name']) === 'primary') {
202 $definition['primary'] = true;
203 } else {
204 $definition['unique'] = true;
205 }
206 $column_name = $row['column_name'];
207 if ($this->db_instance->options['portability'] ?? null) {
208 if ($this->db_instance->options['field_case'] == CASE_LOWER) {
209 $column_name = strtolower((string) $column_name);
210 } else {
211 $column_name = strtoupper((string) $column_name);
212 }
213 }
214 $definition['fields'][$column_name] = [
215 'position' => $colpos++,
216 ];
217 if (!empty($row['collation'])) {
218 $definition['fields'][$column_name]['sorting'] = ($row['collation'] === 'A' ? 'ascending' : 'descending');
219 }
220 }
221 }
222
223 if (empty($definition['fields'])) {
224 throw new ilDatabaseException(' is not an existing table constraint');
225 }
226
227 return $definition;
228 }
ilDatabaseException
Class ilDatabaseException.
Definition: exception.ilDatabaseException.php:28

References $data.

◆ getTableFieldDefinition()

ilDBPdoReverse::getTableFieldDefinition ( string  $table_name,
string  $field_name 
)
Returns
array<int|string, array<string, mixed>>

Implements ilDBReverse.

Definition at line 48 of file class.ilDBPdoReverse.php.

48 : array
49 {
50 $table = $this->db_instance->quoteIdentifier($table_name);
51 $query = "SHOW COLUMNS FROM $table LIKE " . $this->db_instance->quote($field_name);
52 $res = $this->pdo->query($query);
53 $columns = [];
54 while ($data = $res->fetch(PDO::FETCH_ASSOC)) {
55 $columns[] = $data;
56 }
57
58 $ilDBPdoFieldDefinition = $this->db_instance->getFieldDefinition();
59
60 foreach ($columns as $column) {
61 $column = array_change_key_case($column, CASE_LOWER);
62 $column['name'] = $column['field'];
63 unset($column['field']);
64 $column = array_change_key_case($column, CASE_LOWER);
65 if ($field_name === $column['name'] && $ilDBPdoFieldDefinition !== null) {
66 [$types, $length, $unsigned, $fixed] = $ilDBPdoFieldDefinition->mapNativeDatatype($column);
67 $notnull = false;
68 if (empty($column['null']) || $column['null'] !== 'YES') {
69 $notnull = true;
70 }
71 $default = false;
72 if (array_key_exists('default', $column)) {
73 $default = $column['default'];
74 if ($notnull && is_null($default)) {
75 $default = '';
76 }
77 }
78 $autoincrement = false;
79 if (!empty($column['extra']) && $column['extra'] === 'auto_increment') {
80 $autoincrement = true;
81 }
82
83 $definition[0] = [
84 'notnull' => $notnull,
85 'nativetype' => preg_replace('/^([a-z]+)[^a-z].*/i', '\\1', (string) $column['type']),
86 ];
87 if (!is_null($length)) {
88 $definition[0]['length'] = $length;
89 }
90 if (!is_null($unsigned)) {
91 $definition[0]['unsigned'] = $unsigned;
92 }
93 if (!is_null($fixed)) {
94 $definition[0]['fixed'] = $fixed;
95 }
96 if ($default !== false) {
97 $definition[0]['default'] = $default;
98 }
99 if ($autoincrement) {
100 $definition[0]['autoincrement'] = $autoincrement;
101 }
102 foreach ($types as $key => $type) {
103 $definition[$key] = $definition[0];
104 if ($type === 'clob' || $type === 'blob') {
105 unset($definition[$key]['default']);
106 }
107 $definition[$key]['type'] = $type;
108 $definition[$key]['mdb2type'] = $type;
109 }
110
111 return $definition;
112 }
113 }
114
115 throw new ilDatabaseException('it was not specified an existing table column');
116 }
$res
$res
Definition: ltiservices.php:69

References $data, and $res.

◆ getTableIndexDefinition()

ilDBPdoReverse::getTableIndexDefinition ( string  $table,
string  $constraint_name 
)
Returns
array<string, array<int|string, array<string, string|int>>&array>
Exceptions

ilDatabaseException

Implements ilDBReverse.

Definition at line 122 of file class.ilDBPdoReverse.php.

122 : array
123 {
124 $table = $this->db_instance->quoteIdentifier($table, true);
125 $query = "SHOW INDEX FROM $table /*!50002 WHERE Key_name = %s */";
126 $index_name_pdo = $this->db_instance->getIndexName($constraint_name);
127 $result = $this->db_instance->query(sprintf($query, $this->db_instance->quote($index_name_pdo)));
128 $data = $this->db_instance->fetchAssoc($result);
129
130 if ($data) {
131 $constraint_name = $index_name_pdo;
132 }
133
134 $result = $this->db_instance->query(sprintf($query, $this->db_instance->quote($constraint_name)));
135
136 $colpos = 1;
137 $definition = [];
138 while (is_object($row = $result->fetchObject())) {
139 $row = array_change_key_case((array) $row, CASE_LOWER);
140
141 $key_name = $row['key_name'];
142
143 if ($constraint_name === $key_name) {
144 if (!$row['non_unique']) {
145 throw new ilDatabaseException('it was not specified an existing table index');
146 }
147 $column_name = $row['column_name'];
148 $definition['fields'][$column_name] = [
149 'position' => $colpos++,
150 ];
151 if (!empty($row['collation'])) {
152 $definition['fields'][$column_name]['sorting'] = ($row['collation'] === 'A' ? 'ascending' : 'descending');
153 }
154 }
155 }
156
157 if (empty($definition['fields'])) {
158 throw new ilDatabaseException('it was not specified an existing table index (index does not exist)');
159 }
160
161 return $definition;
162 }

References $data.

◆ getTriggerDefinition()

ilDBPdoReverse::getTriggerDefinition ( string  $trigger)
Exceptions

ilDatabaseException

Implements ilDBReverse.

Definition at line 233 of file class.ilDBPdoReverse.php.

233 : array
234 {
235 throw new ilDatabaseException('not yet implemented ' . __METHOD__);
236 }

Field Documentation

◆ $query_utils

ilMySQLQueryUtils ilDBPdoReverse::$query_utils = null
protected

Definition at line 27 of file class.ilDBPdoReverse.php.

Referenced by getQueryUtils().

The documentation for this class was generated from the following file: