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Enablig PHP generation of code for change_field_type()

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stronk7
2006-09-29 23:12:40 +00:00
parent cec4b7c621
commit 4fae686bc2
1 changed files with 61 additions and 1 deletions
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admin/xmldb/actions/view_table_php/view_table_php.class.php
+61 -1
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@@ -120,7 +120,7 @@ class view_table_php extends XMLDBAction {
$optionspacer . 'add_field',
$optionspacer . 'drop_field',
$optionspacer . 'rename_field (not imp!)',
$optionspacer . 'change_field_type (not imp!)',
$optionspacer . 'change_field_type',
$optionspacer . 'change_field_precision',
$optionspacer . 'change_field_unsigned',
$optionspacer . 'change_field_notnull',
@@ -201,6 +201,13 @@ class view_table_php extends XMLDBAction {
$o.= $this->str['mustselectonefield'];
}
break;
case 'change_field_type':
if ($fieldkeyindexinitial == 'f') { //Only if we have got one field
$o.= s($this->change_field_type_php($structure, $tableparam, $fieldkeyindexparam));
} else {
$o.= $this->str['mustselectonefield'];
}
break;
case 'change_field_precision':
if ($fieldkeyindexinitial == 'f') { //Only if we have got one field
$o.= s($this->change_field_precision_php($structure, $tableparam, $fieldkeyindexparam));
@@ -417,6 +424,59 @@ class view_table_php extends XMLDBAction {
return $result;
}
/**
* This function will generate all the PHP code needed to
* change the type of one field using XMLDB objects and functions.
* Currently these conversions are supported:
* integer to char
* char to integer
* number to char
* char to number
* float to char
* char to float
*
* @param XMLDBStructure structure object containing all the info
* @param string table table name
* @param string field field name to change precision
*/
function change_field_type_php($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 type tip text
$type = $field->getXMLDBTypeName($field->getType());
/// Add the standard PHP header
$result .= XMLDB_PHP_HEADER;
/// Add contents
$result .= XMLDB_LINEFEED;
$result .= ' /// Changing type of field ' . $field->getName() . ' on table ' . $table->getName() . ' to ' . $type . 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 type for field ' . $field->getName() . XMLDB_LINEFEED;
$result .= ' $status = $status && change_field_type($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 precision of one field using XMLDB objects and functions