/// Calculate the popup of commands
$commands = array('add_field',
'drop_field',
- 'rename_field');
+ 'rename_field (not imp!)',
+ 'change_field_type (not imp!)',
+ 'change_field_precision',
+ 'change_field_unsigned',
+ 'change_field_notnull',
+ 'change_field_sequence (not imp!)',
+ 'change_field_enum (not imp!)',
+ 'change_field_default');
foreach ($commands as $command) {
$popcommands[$command] = str_replace('_', ' ', $command);
}
case 'rename_field':
$o.= s($this->rename_field_php($structure, $tableparam, $fieldkeyindexparam));
break;
+ case 'change_field_precision':
+ $o.= s($this->change_field_precision_php($structure, $tableparam, $fieldkeyindexparam));
+ break;
+ case 'change_field_unsigned':
+ $o.= s($this->change_field_unsigned_php($structure, $tableparam, $fieldkeyindexparam));
+ break;
+ case 'change_field_notnull':
+ $o.= s($this->change_field_notnull_php($structure, $tableparam, $fieldkeyindexparam));
+ break;
+ case 'change_field_default':
+ $o.= s($this->change_field_default_php($structure, $tableparam, $fieldkeyindexparam));
+ break;
}
}
$o.= '</textarea></td></tr>';
return $result;
}
+ /**
+ * This function will generate all the PHP code needed to
+ * change the precision of one field using XMLDB objects and functions
+ *
+ * @param XMLDBStructure structure object containing all the info
+ * @param string table table name
+ * @param string field field name to change precision
+ */
+ function change_field_precision_php($structure, $table, $field) {
+
+ $result = '';
+ /// Validate if we can do it
+ if (!$table = $structure->getTable($table)) {
+ return false;
+ }
+ if (!$field = $table->getField($field)) {
+ return false;
+ }
+ if ($table->getAllErrors()) {
+ return false;
+ }
+
+ /// Calculate the precision tip text
+ $precision = '(' . $field->getLength();
+ if ($field->getDecimals()) {
+ $precision .= ', ' . $field->getDecimals();
+ }
+ $precision .= ')';
+
+ /// Add the standard PHP header
+ $result .= XMLDB_PHP_HEADER;
+
+ /// Add contents
+ $result .= XMLDB_LINEFEED;
+ $result .= ' /// Changing precision of field ' . $field->getName() . ' on table ' . $table->getName() . ' to ' . $precision . XMLDB_LINEFEED;
+ $result .= ' $table = new XMLDBTable(' . "'" . $table->getName() . "'" . ');' . XMLDB_LINEFEED;
+ $result .= ' $field = new XMLDBField(' . "'" . $field->getName() . "'" . ');' . XMLDB_LINEFEED;
+ $result .= ' $field->setAttributes(' . $field->getPHP(true) . ');' . XMLDB_LINEFEED;
+
+ /// Launch the proper DDL
+ $result .= XMLDB_LINEFEED;
+ $result .= ' /// Launch change of precision for field ' . $field->getName() . XMLDB_LINEFEED;
+ $result .= ' $status = $status && change_field_precision($table, $field);' . XMLDB_LINEFEED;
+
+ /// Add standard PHP footer
+ $result .= XMLDB_PHP_FOOTER;
+
+ return $result;
+ }
+
+ /**
+ * This function will generate all the PHP code needed to
+ * change the unsigned/signed of one field using XMLDB objects and functions
+ *
+ * @param XMLDBStructure structure object containing all the info
+ * @param string table table name
+ * @param string field field name to change unsigned/signed
+ */
+ function change_field_unsigned_php($structure, $table, $field) {
+
+ $result = '';
+ /// Validate if we can do it
+ if (!$table = $structure->getTable($table)) {
+ return false;
+ }
+ if (!$field = $table->getField($field)) {
+ return false;
+ }
+ if ($table->getAllErrors()) {
+ return false;
+ }
+
+ /// Calculate the unsigned tip text
+ $unsigned = $field->getUnsigned() ? 'unsigned' : 'signed';
+
+ /// Add the standard PHP header
+ $result .= XMLDB_PHP_HEADER;
+
+ /// Add contents
+ $result .= XMLDB_LINEFEED;
+ $result .= ' /// Changing sign of field ' . $field->getName() . ' on table ' . $table->getName() . ' to ' . $unsigned . XMLDB_LINEFEED;
+ $result .= ' $table = new XMLDBTable(' . "'" . $table->getName() . "'" . ');' . XMLDB_LINEFEED;
+ $result .= ' $field = new XMLDBField(' . "'" . $field->getName() . "'" . ');' . XMLDB_LINEFEED;
+ $result .= ' $field->setAttributes(' . $field->getPHP(true) . ');' . XMLDB_LINEFEED;
+
+ /// Launch the proper DDL
+ $result .= XMLDB_LINEFEED;
+ $result .= ' /// Launch change of sign for field ' . $field->getName() . XMLDB_LINEFEED;
+ $result .= ' $status = $status && change_field_unsigned($table, $field);' . XMLDB_LINEFEED;
+
+ /// Add standard PHP footer
+ $result .= XMLDB_PHP_FOOTER;
+
+ return $result;
+ }
+
+ /**
+ * This function will generate all the PHP code needed to
+ * change the nullability of one field using XMLDB objects and functions
+ *
+ * @param XMLDBStructure structure object containing all the info
+ * @param string table table name
+ * @param string field field name to change null/not null
+ */
+ function change_field_notnull_php($structure, $table, $field) {
+
+ $result = '';
+ /// Validate if we can do it
+ if (!$table = $structure->getTable($table)) {
+ return false;
+ }
+ if (!$field = $table->getField($field)) {
+ return false;
+ }
+ if ($table->getAllErrors()) {
+ return false;
+ }
+
+ /// Calculate the notnull tip text
+ $notnull = $field->getNotnull() ? 'not null' : 'null';
+
+ /// Add the standard PHP header
+ $result .= XMLDB_PHP_HEADER;
+
+ /// Add contents
+ $result .= XMLDB_LINEFEED;
+ $result .= ' /// Changing nullability of field ' . $field->getName() . ' on table ' . $table->getName() . ' to ' . $notnull . XMLDB_LINEFEED;
+ $result .= ' $table = new XMLDBTable(' . "'" . $table->getName() . "'" . ');' . XMLDB_LINEFEED;
+ $result .= ' $field = new XMLDBField(' . "'" . $field->getName() . "'" . ');' . XMLDB_LINEFEED;
+ $result .= ' $field->setAttributes(' . $field->getPHP(true) . ');' . XMLDB_LINEFEED;
+
+ /// Launch the proper DDL
+ $result .= XMLDB_LINEFEED;
+ $result .= ' /// Launch change of nullability for field ' . $field->getName() . XMLDB_LINEFEED;
+ $result .= ' $status = $status && change_field_notnull($table, $field);' . XMLDB_LINEFEED;
+
+ /// Add standard PHP footer
+ $result .= XMLDB_PHP_FOOTER;
+
+ return $result;
+ }
+
+ /**
+ * This function will generate all the PHP code needed to
+ * change the default of one field using XMLDB objects and functions
+ *
+ * @param XMLDBStructure structure object containing all the info
+ * @param string table table name
+ * @param string field field name to change null/not null
+ */
+ function change_field_default_php($structure, $table, $field) {
+
+ $result = '';
+ /// Validate if we can do it
+ if (!$table = $structure->getTable($table)) {
+ return false;
+ }
+ if (!$field = $table->getField($field)) {
+ return false;
+ }
+ if ($table->getAllErrors()) {
+ return false;
+ }
+
+ /// Calculate the default tip text
+ $default = $field->getDefault() === null ? 'drop it' : $field->getDefault();
+
+ /// Add the standard PHP header
+ $result .= XMLDB_PHP_HEADER;
+
+ /// Add contents
+ $result .= XMLDB_LINEFEED;
+ $result .= ' /// Changing the default of field ' . $field->getName() . ' on table ' . $table->getName() . ' to ' . $default . XMLDB_LINEFEED;
+ $result .= ' $table = new XMLDBTable(' . "'" . $table->getName() . "'" . ');' . XMLDB_LINEFEED;
+ $result .= ' $field = new XMLDBField(' . "'" . $field->getName() . "'" . ');' . XMLDB_LINEFEED;
+ $result .= ' $field->setAttributes(' . $field->getPHP(true) . ');' . XMLDB_LINEFEED;
+
+ /// Launch the proper DDL
+ $result .= XMLDB_LINEFEED;
+ $result .= ' /// Launch change of default for field ' . $field->getName() . XMLDB_LINEFEED;
+ $result .= ' $status = $status && change_field_default($table, $field);' . XMLDB_LINEFEED;
+
+ /// Add standard PHP footer
+ $result .= XMLDB_PHP_FOOTER;
+
+ return $result;
+ }
+
}
?>