Update to upstream version 4.94
[Packages/TYPO3.CMS.git] / typo3 / sysext / adodb / adodb / drivers / adodb-pdo_pgsql.inc.php
1 <?php
2
3 /*
4 V4.94 23 Jan 2007 (c) 2000-2007 John Lim (jlim#natsoft.com.my). All rights reserved.
5 Released under both BSD license and Lesser GPL library license.
6 Whenever there is any discrepancy between the two licenses,
7 the BSD license will take precedence.
8 Set tabs to 8.
9
10 */
11
12 class ADODB_pdo_pgsql extends ADODB_pdo {
13 var $metaDatabasesSQL = "select datname from pg_database where datname not in ('template0','template1') order by 1";
14 var $metaTablesSQL = "select tablename,'T' from pg_tables where tablename not like 'pg\_%'
15 and tablename not in ('sql_features', 'sql_implementation_info', 'sql_languages',
16 'sql_packages', 'sql_sizing', 'sql_sizing_profiles')
17 union
18 select viewname,'V' from pg_views where viewname not like 'pg\_%'";
19 //"select tablename from pg_tables where tablename not like 'pg_%' order by 1";
20 var $isoDates = true; // accepts dates in ISO format
21 var $sysDate = "CURRENT_DATE";
22 var $sysTimeStamp = "CURRENT_TIMESTAMP";
23 var $blobEncodeType = 'C';
24 var $metaColumnsSQL = "SELECT a.attname,t.typname,a.attlen,a.atttypmod,a.attnotnull,a.atthasdef,a.attnum
25 FROM pg_class c, pg_attribute a,pg_type t
26 WHERE relkind in ('r','v') AND (c.relname='%s' or c.relname = lower('%s')) and a.attname not like '....%%'
27 AND a.attnum > 0 AND a.atttypid = t.oid AND a.attrelid = c.oid ORDER BY a.attnum";
28
29 // used when schema defined
30 var $metaColumnsSQL1 = "SELECT a.attname, t.typname, a.attlen, a.atttypmod, a.attnotnull, a.atthasdef, a.attnum
31 FROM pg_class c, pg_attribute a, pg_type t, pg_namespace n
32 WHERE relkind in ('r','v') AND (c.relname='%s' or c.relname = lower('%s'))
33 and c.relnamespace=n.oid and n.nspname='%s'
34 and a.attname not like '....%%' AND a.attnum > 0
35 AND a.atttypid = t.oid AND a.attrelid = c.oid ORDER BY a.attnum";
36
37 // get primary key etc -- from Freek Dijkstra
38 var $metaKeySQL = "SELECT ic.relname AS index_name, a.attname AS column_name,i.indisunique AS unique_key, i.indisprimary AS primary_key
39 FROM pg_class bc, pg_class ic, pg_index i, pg_attribute a WHERE bc.oid = i.indrelid AND ic.oid = i.indexrelid AND (i.indkey[0] = a.attnum OR i.indkey[1] = a.attnum OR i.indkey[2] = a.attnum OR i.indkey[3] = a.attnum OR i.indkey[4] = a.attnum OR i.indkey[5] = a.attnum OR i.indkey[6] = a.attnum OR i.indkey[7] = a.attnum) AND a.attrelid = bc.oid AND bc.relname = '%s'";
40
41 var $hasAffectedRows = true;
42 var $hasLimit = false; // set to true for pgsql 7 only. support pgsql/mysql SELECT * FROM TABLE LIMIT 10
43 // below suggested by Freek Dijkstra
44 var $true = 't'; // string that represents TRUE for a database
45 var $false = 'f'; // string that represents FALSE for a database
46 var $fmtDate = "'Y-m-d'"; // used by DBDate() as the default date format used by the database
47 var $fmtTimeStamp = "'Y-m-d G:i:s'"; // used by DBTimeStamp as the default timestamp fmt.
48 var $hasMoveFirst = true;
49 var $hasGenID = true;
50 var $_genIDSQL = "SELECT NEXTVAL('%s')";
51 var $_genSeqSQL = "CREATE SEQUENCE %s START %s";
52 var $_dropSeqSQL = "DROP SEQUENCE %s";
53 var $metaDefaultsSQL = "SELECT d.adnum as num, d.adsrc as def from pg_attrdef d, pg_class c where d.adrelid=c.oid and c.relname='%s' order by d.adnum";
54 var $random = 'random()'; /// random function
55 var $concat_operator='||';
56
57 function _init($parentDriver)
58 {
59
60 $parentDriver->hasTransactions = false; ## <<< BUG IN PDO pgsql driver
61 $parentDriver->hasInsertID = true;
62 $parentDriver->_nestedSQL = true;
63 }
64
65 function ServerInfo()
66 {
67 $arr['description'] = ADOConnection::GetOne("select version()");
68 $arr['version'] = ADOConnection::_findvers($arr['description']);
69 return $arr;
70 }
71
72 function &SelectLimit($sql,$nrows=-1,$offset=-1,$inputarr=false,$secs2cache=0)
73 {
74 $offsetStr = ($offset >= 0) ? " OFFSET $offset" : '';
75 $limitStr = ($nrows >= 0) ? " LIMIT $nrows" : '';
76 if ($secs2cache)
77 $rs =& $this->CacheExecute($secs2cache,$sql."$limitStr$offsetStr",$inputarr);
78 else
79 $rs =& $this->Execute($sql."$limitStr$offsetStr",$inputarr);
80
81 return $rs;
82 }
83
84 function &MetaTables($ttype=false,$showSchema=false,$mask=false)
85 {
86 $info = $this->ServerInfo();
87 if ($info['version'] >= 7.3) {
88 $this->metaTablesSQL = "select tablename,'T' from pg_tables where tablename not like 'pg\_%'
89 and schemaname not in ( 'pg_catalog','information_schema')
90 union
91 select viewname,'V' from pg_views where viewname not like 'pg\_%' and schemaname not in ( 'pg_catalog','information_schema') ";
92 }
93 if ($mask) {
94 $save = $this->metaTablesSQL;
95 $mask = $this->qstr(strtolower($mask));
96 if ($info['version']>=7.3)
97 $this->metaTablesSQL = "
98 select tablename,'T' from pg_tables where tablename like $mask and schemaname not in ( 'pg_catalog','information_schema')
99 union
100 select viewname,'V' from pg_views where viewname like $mask and schemaname not in ( 'pg_catalog','information_schema') ";
101 else
102 $this->metaTablesSQL = "
103 select tablename,'T' from pg_tables where tablename like $mask
104 union
105 select viewname,'V' from pg_views where viewname like $mask";
106 }
107 $ret =& ADOConnection::MetaTables($ttype,$showSchema);
108
109 if ($mask) {
110 $this->metaTablesSQL = $save;
111 }
112 return $ret;
113 }
114
115 function &MetaColumns($table,$normalize=true)
116 {
117 global $ADODB_FETCH_MODE;
118
119 $schema = false;
120 $this->_findschema($table,$schema);
121
122 if ($normalize) $table = strtolower($table);
123
124 $save = $ADODB_FETCH_MODE;
125 $ADODB_FETCH_MODE = ADODB_FETCH_NUM;
126 if ($this->fetchMode !== false) $savem = $this->SetFetchMode(false);
127
128 if ($schema) $rs =& $this->Execute(sprintf($this->metaColumnsSQL1,$table,$table,$schema));
129 else $rs =& $this->Execute(sprintf($this->metaColumnsSQL,$table,$table));
130 if (isset($savem)) $this->SetFetchMode($savem);
131 $ADODB_FETCH_MODE = $save;
132
133 if ($rs === false) {
134 $false = false;
135 return $false;
136 }
137 if (!empty($this->metaKeySQL)) {
138 // If we want the primary keys, we have to issue a separate query
139 // Of course, a modified version of the metaColumnsSQL query using a
140 // LEFT JOIN would have been much more elegant, but postgres does
141 // not support OUTER JOINS. So here is the clumsy way.
142
143 $ADODB_FETCH_MODE = ADODB_FETCH_ASSOC;
144
145 $rskey = $this->Execute(sprintf($this->metaKeySQL,($table)));
146 // fetch all result in once for performance.
147 $keys =& $rskey->GetArray();
148 if (isset($savem)) $this->SetFetchMode($savem);
149 $ADODB_FETCH_MODE = $save;
150
151 $rskey->Close();
152 unset($rskey);
153 }
154
155 $rsdefa = array();
156 if (!empty($this->metaDefaultsSQL)) {
157 $ADODB_FETCH_MODE = ADODB_FETCH_ASSOC;
158 $sql = sprintf($this->metaDefaultsSQL, ($table));
159 $rsdef = $this->Execute($sql);
160 if (isset($savem)) $this->SetFetchMode($savem);
161 $ADODB_FETCH_MODE = $save;
162
163 if ($rsdef) {
164 while (!$rsdef->EOF) {
165 $num = $rsdef->fields['num'];
166 $s = $rsdef->fields['def'];
167 if (strpos($s,'::')===false && substr($s, 0, 1) == "'") { /* quoted strings hack... for now... fixme */
168 $s = substr($s, 1);
169 $s = substr($s, 0, strlen($s) - 1);
170 }
171
172 $rsdefa[$num] = $s;
173 $rsdef->MoveNext();
174 }
175 } else {
176 ADOConnection::outp( "==> SQL => " . $sql);
177 }
178 unset($rsdef);
179 }
180
181 $retarr = array();
182 while (!$rs->EOF) {
183 $fld = new ADOFieldObject();
184 $fld->name = $rs->fields[0];
185 $fld->type = $rs->fields[1];
186 $fld->max_length = $rs->fields[2];
187 if ($fld->max_length <= 0) $fld->max_length = $rs->fields[3]-4;
188 if ($fld->max_length <= 0) $fld->max_length = -1;
189 if ($fld->type == 'numeric') {
190 $fld->scale = $fld->max_length & 0xFFFF;
191 $fld->max_length >>= 16;
192 }
193 // dannym
194 // 5 hasdefault; 6 num-of-column
195 $fld->has_default = ($rs->fields[5] == 't');
196 if ($fld->has_default) {
197 $fld->default_value = $rsdefa[$rs->fields[6]];
198 }
199
200 //Freek
201 if ($rs->fields[4] == $this->true) {
202 $fld->not_null = true;
203 }
204
205 // Freek
206 if (is_array($keys)) {
207 foreach($keys as $key) {
208 if ($fld->name == $key['column_name'] AND $key['primary_key'] == $this->true)
209 $fld->primary_key = true;
210 if ($fld->name == $key['column_name'] AND $key['unique_key'] == $this->true)
211 $fld->unique = true; // What name is more compatible?
212 }
213 }
214
215 if ($ADODB_FETCH_MODE == ADODB_FETCH_NUM) $retarr[] = $fld;
216 else $retarr[($normalize) ? strtoupper($fld->name) : $fld->name] = $fld;
217
218 $rs->MoveNext();
219 }
220 $rs->Close();
221 if (empty($retarr)) {
222 $false = false;
223 return $false;
224 } else return $retarr;
225
226 }
227
228 }
229
230 ?>