PHP xmldb_table::addIndex方法代码示例

//.........这里部分代码省略.........
     }
     $tableparam = optional_param('table', NULL, PARAM_CLEAN);
     // If no table, show form
     if (!$tableparam) {
         // No postaction here
         $this->postaction = NULL;
         // Get list of tables
         $dbtables = $DB->get_tables();
         $selecttables = array();
         foreach ($dbtables as $dbtable) {
             $i = $structure->findTableInArray($dbtable);
             if ($i === NULL) {
                 $selecttables[$dbtable] = $dbtable;
             }
         }
         // Get list of after tables
         $aftertables = array();
         if ($tables = $structure->getTables()) {
             foreach ($tables as $aftertable) {
                 $aftertables[$aftertable->getName()] = $aftertable->getName();
             }
         }
         if (!$selecttables) {
             $this->errormsg = 'No tables available to be retrofitted';
             return false;
         }
         // Now build the form
         $o = '<form id="form" action="index.php" method="post">';
         $o .= '<div>';
         $o .= '    <input type="hidden" name ="dir" value="' . str_replace($CFG->dirroot, '', $dirpath) . '" />';
         $o .= '    <input type="hidden" name ="action" value="new_table_from_mysql" />';
         $o .= '    <input type="hidden" name ="postaction" value="edit_table" />';
         $o .= '    <input type="hidden" name ="sesskey" value="' . sesskey() . '" />';
         $o .= '    <table id="formelements" class="boxaligncenter" cellpadding="5">';
         $o .= '      <tr><td><label for="menutable" accesskey="t">' . $this->str['createtable'] . ' </label>' . html_writer::select($selecttables, 'table') . '<label for="menuafter" accesskey="a">' . $this->str['aftertable'] . ' </label>' . html_writer::select($aftertables, 'after') . '</td></tr>';
         $o .= '      <tr><td colspan="2" align="center"><input type="submit" value="' . $this->str['create'] . '" /></td></tr>';
         $o .= '      <tr><td colspan="2" align="center"><a href="index.php?action=edit_xml_file&amp;dir=' . urlencode(str_replace($CFG->dirroot, '', $dirpath)) . '">[' . $this->str['back'] . ']</a></td></tr>';
         $o .= '    </table>';
         $o .= '</div></form>';
         $this->output = $o;
         // If table, retrofit information and, if everything works,
         // go to the table edit action
     } else {
         // Get some params (table is mandatory here)
         $tableparam = required_param('table', PARAM_CLEAN);
         $afterparam = required_param('after', PARAM_CLEAN);
         // Create one new xmldb_table
         $table = new xmldb_table(strtolower(trim($tableparam)));
         $table->setComment($table->getName() . ' table retrofitted from MySQL');
         // Get fields info from ADODb
         $dbfields = $DB->get_columns($tableparam);
         if ($dbfields) {
             foreach ($dbfields as $dbfield) {
                 // Create new XMLDB field
                 $field = new xmldb_field($dbfield->name);
                 // Set field with info retrofitted
                 $field->setFromADOField($dbfield);
                 // Add field to the table
                 $table->addField($field);
             }
         }
         // Get PK, UK and indexes info from ADODb
         $dbindexes = $DB->get_indexes($tableparam);
         if ($dbindexes) {
             $lastkey = NULL;
             //To temp store the last key processed
             foreach ($dbindexes as $indexname => $dbindex) {
                 // Add the indexname to the array
                 $dbindex['name'] = $indexname;
                 // We are handling one xmldb_key (primaries + uniques)
                 if ($dbindex['unique']) {
                     $key = new xmldb_key(strtolower($dbindex['name']));
                     // Set key with info retrofitted
                     $key->setFromADOKey($dbindex);
                     // Set default comment to PKs
                     if ($key->getType() == XMLDB_KEY_PRIMARY) {
                     }
                     // Add key to the table
                     $table->addKey($key);
                     // We are handling one xmldb_index (non-uniques)
                 } else {
                     $index = new xmldb_index(strtolower($dbindex['name']));
                     // Set index with info retrofitted
                     $index->setFromADOIndex($dbindex);
                     // Add index to the table
                     $table->addIndex($index);
                 }
             }
         }
         // Finally, add the whole retroffited table to the structure
         // in the place specified
         $structure->addTable($table, $afterparam);
     }
     // Launch postaction if exists (leave this here!)
     if ($this->getPostAction() && $result) {
         return $this->launch($this->getPostAction());
     }
     // Return ok if arrived here
     return $result;
 }