[2] | 1 | <?php |
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| 2 | /* |
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[34] | 3 | version V4.94 23 Jan 2007 (c) 2000-2007 John Lim (jlim#natsoft.com.my). All rights |
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[2] | 4 | reserved. |
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| 5 | Released under both BSD license and Lesser GPL library license. |
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| 6 | Whenever there is any discrepancy between the two licenses, |
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| 7 | the BSD license will take precedence. |
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| 8 | Set tabs to 4 for best viewing. |
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| 9 | |
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| 10 | Latest version is available at http://adodb.sourceforge.net |
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| 11 | |
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| 12 | 21.02.2002 - Wade Johnson wade@wadejohnson.de |
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| 13 | Extended ODBC class for Sybase SQLAnywhere. |
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| 14 | 1) Added support to retrieve the last row insert ID on tables with |
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| 15 | primary key column using autoincrement function. |
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| 16 | |
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| 17 | 2) Added blob support. Usage: |
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| 18 | a) create blob variable on db server: |
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| 19 | |
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| 20 | $dbconn->create_blobvar($blobVarName); |
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| 21 | |
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| 22 | b) load blob var from file. $filename must be complete path |
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| 23 | |
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| 24 | $dbcon->load_blobvar_from_file($blobVarName, $filename); |
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| 25 | |
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| 26 | c) Use the $blobVarName in SQL insert or update statement in the values |
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| 27 | clause: |
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| 28 | |
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| 29 | $recordSet = $dbconn->Execute('INSERT INTO tabname (idcol, blobcol) ' |
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| 30 | . |
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| 31 | 'VALUES (\'test\', ' . $blobVarName . ')'); |
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| 32 | |
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| 33 | instead of loading blob from a file, you can also load from |
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| 34 | an unformatted (raw) blob variable: |
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| 35 | $dbcon->load_blobvar_from_var($blobVarName, $varName); |
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| 36 | |
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| 37 | d) drop blob variable on db server to free up resources: |
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| 38 | $dbconn->drop_blobvar($blobVarName); |
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| 39 | |
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| 40 | Sybase_SQLAnywhere data driver. Requires ODBC. |
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| 41 | |
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| 42 | */ |
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| 43 | |
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| 44 | // security - hide paths |
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| 45 | if (!defined('ADODB_DIR')) die(); |
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| 46 | |
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| 47 | if (!defined('_ADODB_ODBC_LAYER')) { |
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| 48 | include(ADODB_DIR."/drivers/adodb-odbc.inc.php"); |
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| 49 | } |
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| 50 | |
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| 51 | if (!defined('ADODB_SYBASE_SQLANYWHERE')){ |
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| 52 | |
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| 53 | define('ADODB_SYBASE_SQLANYWHERE',1); |
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| 54 | |
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| 55 | class ADODB_sqlanywhere extends ADODB_odbc { |
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| 56 | var $databaseType = "sqlanywhere"; |
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| 57 | var $hasInsertID = true; |
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| 58 | |
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| 59 | function ADODB_sqlanywhere() |
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| 60 | { |
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| 61 | $this->ADODB_odbc(); |
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| 62 | } |
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| 63 | |
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| 64 | function _insertid() { |
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| 65 | return $this->GetOne('select @@identity'); |
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| 66 | } |
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| 67 | |
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| 68 | function create_blobvar($blobVarName) { |
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| 69 | $this->Execute("create variable $blobVarName long binary"); |
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| 70 | return; |
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| 71 | } |
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| 72 | |
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| 73 | function drop_blobvar($blobVarName) { |
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| 74 | $this->Execute("drop variable $blobVarName"); |
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| 75 | return; |
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| 76 | } |
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| 77 | |
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| 78 | function load_blobvar_from_file($blobVarName, $filename) { |
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| 79 | $chunk_size = 1000; |
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| 80 | |
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| 81 | $fd = fopen ($filename, "rb"); |
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| 82 | |
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| 83 | $integer_chunks = (integer)filesize($filename) / $chunk_size; |
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| 84 | $modulus = filesize($filename) % $chunk_size; |
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| 85 | if ($modulus != 0){ |
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| 86 | $integer_chunks += 1; |
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| 87 | } |
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| 88 | |
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| 89 | for($loop=1;$loop<=$integer_chunks;$loop++){ |
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| 90 | $contents = fread ($fd, $chunk_size); |
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| 91 | $contents = bin2hex($contents); |
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| 92 | |
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| 93 | $hexstring = ''; |
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| 94 | |
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| 95 | for($loop2=0;$loop2<strlen($contents);$loop2+=2){ |
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| 96 | $hexstring .= '\x' . substr($contents,$loop2,2); |
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| 97 | } |
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| 98 | |
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| 99 | $hexstring = $this->qstr($hexstring); |
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| 100 | |
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| 101 | $this->Execute("set $blobVarName = $blobVarName || " . $hexstring); |
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| 102 | } |
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| 103 | |
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| 104 | fclose ($fd); |
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| 105 | return; |
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| 106 | } |
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| 107 | |
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| 108 | function load_blobvar_from_var($blobVarName, &$varName) { |
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| 109 | $chunk_size = 1000; |
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| 110 | |
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| 111 | $integer_chunks = (integer)strlen($varName) / $chunk_size; |
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| 112 | $modulus = strlen($varName) % $chunk_size; |
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| 113 | if ($modulus != 0){ |
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| 114 | $integer_chunks += 1; |
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| 115 | } |
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| 116 | |
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| 117 | for($loop=1;$loop<=$integer_chunks;$loop++){ |
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| 118 | $contents = substr ($varName, (($loop - 1) * $chunk_size), $chunk_size); |
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| 119 | $contents = bin2hex($contents); |
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| 120 | |
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| 121 | $hexstring = ''; |
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| 122 | |
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| 123 | for($loop2=0;$loop2<strlen($contents);$loop2+=2){ |
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| 124 | $hexstring .= '\x' . substr($contents,$loop2,2); |
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| 125 | } |
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| 126 | |
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| 127 | $hexstring = $this->qstr($hexstring); |
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| 128 | |
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| 129 | $this->Execute("set $blobVarName = $blobVarName || " . $hexstring); |
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| 130 | } |
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| 131 | |
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| 132 | return; |
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| 133 | } |
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| 134 | |
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| 135 | /* |
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| 136 | Insert a null into the blob field of the table first. |
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| 137 | Then use UpdateBlob to store the blob. |
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| 138 | |
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| 139 | Usage: |
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| 140 | |
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| 141 | $conn->Execute('INSERT INTO blobtable (id, blobcol) VALUES (1, null)'); |
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| 142 | $conn->UpdateBlob('blobtable','blobcol',$blob,'id=1'); |
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| 143 | */ |
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| 144 | function UpdateBlob($table,$column,&$val,$where,$blobtype='BLOB') |
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| 145 | { |
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| 146 | $blobVarName = 'hold_blob'; |
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| 147 | $this->create_blobvar($blobVarName); |
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| 148 | $this->load_blobvar_from_var($blobVarName, $val); |
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| 149 | $this->Execute("UPDATE $table SET $column=$blobVarName WHERE $where"); |
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| 150 | $this->drop_blobvar($blobVarName); |
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| 151 | return true; |
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| 152 | } |
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| 153 | }; //class |
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| 154 | |
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| 155 | class ADORecordSet_sqlanywhere extends ADORecordSet_odbc { |
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| 156 | |
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| 157 | var $databaseType = "sqlanywhere"; |
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| 158 | |
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| 159 | function ADORecordSet_sqlanywhere($id,$mode=false) |
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| 160 | { |
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| 161 | $this->ADORecordSet_odbc($id,$mode); |
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| 162 | } |
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| 163 | |
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| 164 | |
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| 165 | }; //class |
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| 166 | |
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| 167 | |
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| 168 | } //define |
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| 169 | ?> |
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