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1 | <?php |
2 | /* | |
3 | +--------------------------------------------------------------------+ | |
06b69b18 | 4 | | CiviCRM version 4.5 | |
6a488035 | 5 | +--------------------------------------------------------------------+ |
06b69b18 | 6 | | Copyright CiviCRM LLC (c) 2004-2014 | |
6a488035 TO |
7 | +--------------------------------------------------------------------+ |
8 | | This file is a part of CiviCRM. | | |
9 | | | | |
10 | | CiviCRM is free software; you can copy, modify, and distribute it | | |
11 | | under the terms of the GNU Affero General Public License | | |
12 | | Version 3, 19 November 2009. | | |
13 | | | | |
14 | | CiviCRM is distributed in the hope that it will be useful, but | | |
15 | | WITHOUT ANY WARRANTY; without even the implied warranty of | | |
16 | | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. | | |
17 | | See the GNU Affero General Public License for more details. | | |
18 | | | | |
19 | | You should have received a copy of the GNU Affero General Public | | |
20 | | License and the CiviCRM Licensing Exception along | | |
21 | | with this program; if not, contact CiviCRM LLC | | |
22 | | at info[AT]civicrm[DOT]org. If you have questions about the | | |
23 | | GNU Affero General Public License or the licensing of CiviCRM, | | |
24 | | see the CiviCRM license FAQ at http://civicrm.org/licensing | | |
25 | +--------------------------------------------------------------------+ | |
26 | */ | |
27 | ||
28 | /** | |
29 | * | |
30 | * @package CRM | |
06b69b18 | 31 | * @copyright CiviCRM LLC (c) 2004-2014 |
6a488035 TO |
32 | * $Id$ |
33 | * | |
34 | */ | |
35 | class CRM_Import_DataSource_CSV extends CRM_Import_DataSource { | |
b0b2638a DL |
36 | CONST |
37 | NUM_ROWS_TO_INSERT = 100; | |
38 | ||
6a488035 TO |
39 | function getInfo() { |
40 | return array('title' => ts('Comma-Separated Values (CSV)')); | |
41 | } | |
42 | ||
43 | function preProcess(&$form) {} | |
44 | ||
45 | function buildQuickForm(&$form) { | |
46 | $form->add('hidden', 'hidden_dataSource', 'CRM_Import_DataSource_CSV'); | |
47 | ||
48 | $config = CRM_Core_Config::singleton(); | |
49 | ||
50 | // FIXME: why do we limit the file size to 8 MiB if it's larger in config? | |
51 | $uploadFileSize = $config->maxImportFileSize >= 8388608 ? 8388608 : $config->maxImportFileSize; | |
52 | $uploadSize = round(($uploadFileSize / (1024 * 1024)), 2); | |
53 | $form->assign('uploadSize', $uploadSize); | |
54 | $form->add('file', 'uploadFile', ts('Import Data File'), 'size=30 maxlength=255', TRUE); | |
55 | ||
56 | $form->setMaxFileSize($uploadFileSize); | |
57 | $form->addRule('uploadFile', ts('File size should be less than %1 MBytes (%2 bytes)', array(1 => $uploadSize, 2 => $uploadFileSize)), 'maxfilesize', $uploadFileSize); | |
58 | $form->addRule('uploadFile', ts('Input file must be in CSV format'), 'utf8File'); | |
59 | $form->addRule('uploadFile', ts('A valid file must be uploaded.'), 'uploadedfile'); | |
60 | ||
61 | $form->addElement('checkbox', 'skipColumnHeader', ts('First row contains column headers')); | |
62 | } | |
63 | ||
64 | function postProcess(&$params, &$db, &$form) { | |
65 | $file = $params['uploadFile']['name']; | |
66 | ||
67 | $result = self::_CsvToTable($db, | |
68 | $file, | |
69 | CRM_Utils_Array::value('skipColumnHeader', $params, FALSE), | |
70 | CRM_Utils_Array::value('import_table_name', $params), | |
71 | CRM_Utils_Array::value('fieldSeparator', $params, ',') | |
72 | ); | |
73 | ||
74 | $form->set('originalColHeader', CRM_Utils_Array::value('original_col_header', $result)); | |
75 | ||
76 | $table = $result['import_table_name']; | |
719a6fec | 77 | $importJob = new CRM_Contact_Import_ImportJob($table); |
6a488035 TO |
78 | $form->set('importTableName', $importJob->getTableName()); |
79 | } | |
80 | ||
81 | /** | |
82 | * Create a table that matches the CSV file and populate it with the file's contents | |
83 | * | |
84 | * @param object $db handle to the database connection | |
85 | * @param string $file file name to load | |
86 | * @param bool $headers whether the first row contains headers | |
87 | * @param string $table Name of table from which data imported. | |
88 | * @param string $fieldSeparator Character that seperates the various columns in the file | |
89 | * | |
90 | * @return string name of the created table | |
91 | */ | |
92 | private static function _CsvToTable(&$db, | |
93 | $file, | |
94 | $headers = FALSE, | |
95 | $table = NULL, | |
96 | $fieldSeparator = ',' | |
97 | ) { | |
98 | $result = array(); | |
99 | $fd = fopen($file, 'r'); | |
100 | if (!$fd) { | |
101 | CRM_Core_Error::fatal("Could not read $file"); | |
102 | } | |
103 | ||
104 | $config = CRM_Core_Config::singleton(); | |
105 | // support tab separated | |
106 | if (strtolower($fieldSeparator) == 'tab' || | |
107 | strtolower($fieldSeparator) == '\t' | |
108 | ) { | |
109 | $fieldSeparator = "\t"; | |
110 | } | |
111 | ||
112 | $firstrow = fgetcsv($fd, 0, $fieldSeparator); | |
113 | ||
114 | // create the column names from the CSV header or as col_0, col_1, etc. | |
115 | if ($headers) { | |
116 | //need to get original headers. | |
117 | $result['original_col_header'] = $firstrow; | |
118 | ||
119 | $strtolower = function_exists('mb_strtolower') ? 'mb_strtolower' : 'strtolower'; | |
120 | $columns = array_map($strtolower, $firstrow); | |
121 | $columns = str_replace(' ', '_', $columns); | |
122 | $columns = preg_replace('/[^a-z_]/', '', $columns); | |
123 | ||
124 | // need to take care of null as well as duplicate col names. | |
125 | $duplicateColName = FALSE; | |
126 | if (count($columns) != count(array_unique($columns))) { | |
127 | $duplicateColName = TRUE; | |
128 | } | |
129 | ||
130 | ||
131 | // need to truncate values per mysql field name length limits | |
132 | // mysql allows 64, but we need to account for appending colKey | |
133 | // CRM-9079 | |
134 | foreach ($columns as $colKey => & $colName) { | |
135 | if (strlen($colName) > 58) { | |
136 | $colName = substr($colName, 0, 58); | |
137 | } | |
138 | } | |
139 | ||
140 | if (in_array('', $columns) || $duplicateColName) { | |
141 | foreach ($columns as $colKey => & $colName) { | |
142 | if (!$colName) { | |
143 | $colName = "col_$colKey"; | |
144 | } | |
145 | elseif ($duplicateColName) { | |
146 | $colName .= "_$colKey"; | |
147 | } | |
148 | } | |
149 | } | |
150 | ||
151 | // CRM-4881: we need to quote column names, as they may be MySQL reserved words | |
152 | foreach ($columns as & $column) $column = "`$column`"; | |
153 | } | |
154 | else { | |
155 | $columns = array(); | |
156 | foreach ($firstrow as $i => $_) $columns[] = "col_$i"; | |
157 | } | |
158 | ||
159 | // FIXME: we should regen this table's name if it exists rather than drop it | |
160 | if (!$table) { | |
161 | $table = 'civicrm_import_job_' . md5(uniqid(rand(), TRUE)); | |
162 | } | |
163 | ||
164 | $db->query("DROP TABLE IF EXISTS $table"); | |
165 | ||
166 | $numColumns = count($columns); | |
167 | $create = "CREATE TABLE $table (" . implode(' text, ', $columns) . " text) ENGINE=InnoDB DEFAULT CHARACTER SET utf8 COLLATE utf8_unicode_ci"; | |
168 | $db->query($create); | |
169 | ||
170 | // the proper approach, but some MySQL installs do not have this enabled | |
171 | // $load = "LOAD DATA LOCAL INFILE '$file' INTO TABLE $table FIELDS TERMINATED BY '$fieldSeparator' OPTIONALLY ENCLOSED BY '\"'"; | |
172 | // if ($headers) { $load .= ' IGNORE 1 LINES'; } | |
173 | // $db->query($load); | |
174 | ||
175 | // parse the CSV line by line and build one big INSERT (while MySQL-escaping the CSV contents) | |
176 | if (!$headers) { | |
177 | rewind($fd); | |
178 | } | |
179 | ||
180 | $sql = NULL; | |
181 | $first = TRUE; | |
182 | $count = 0; | |
183 | while ($row = fgetcsv($fd, 0, $fieldSeparator)) { | |
184 | // skip rows that dont match column count, else we get a sql error | |
185 | if (count($row) != $numColumns) { | |
186 | continue; | |
187 | } | |
188 | ||
189 | if (!$first) { | |
190 | $sql .= ', '; | |
191 | } | |
192 | ||
193 | $first = FALSE; | |
194 | $row = array_map('civicrm_mysql_real_escape_string', $row); | |
195 | $sql .= "('" . implode("', '", $row) . "')"; | |
196 | $count++; | |
197 | ||
198 | if ($count >= self::NUM_ROWS_TO_INSERT && !empty($sql)) { | |
199 | $sql = "INSERT IGNORE INTO $table VALUES $sql"; | |
200 | $db->query($sql); | |
201 | ||
202 | $sql = NULL; | |
203 | $first = TRUE; | |
204 | $count = 0; | |
205 | } | |
206 | } | |
207 | ||
208 | if (!empty($sql)) { | |
209 | $sql = "INSERT IGNORE INTO $table VALUES $sql"; | |
210 | $db->query($sql); | |
211 | } | |
212 | ||
213 | fclose($fd); | |
214 | ||
215 | //get the import tmp table name. | |
216 | $result['import_table_name'] = $table; | |
217 | ||
218 | return $result; | |
219 | } | |
220 | } | |
221 | ||
222 | function civicrm_mysql_real_escape_string($string) { | |
223 | static $dao = NULL; | |
224 | if (!$dao) { | |
225 | $dao = new CRM_Core_DAO(); | |
226 | } | |
227 | return $dao->escape($string); | |
228 | } | |
229 |