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Added changes to table_column from Petri Asikainen for Postgresql 7.3

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moodler
2003-02-18 07:44:26 +00:00
parent c2a96d6b32
commit 5a4d292bca
1 changed files with 51 additions and 0 deletions
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lib/datalib.php
+51
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@@ -99,7 +99,58 @@ function table_column($table, $oldfield, $field, $type="integer", $size="10",
execute_sql("ALTER TABLE {$CFG->prefix}$table $operation $type $signed $default $null $after");
break;
case "postgres7": // From Petri Asikainen
//to prevent conflicts with reserved words
$field = "\"$field\"";
$oldfield = "\"$oldfield\"";
switch (strtolower($type)) {
case "integer":
if ($size <= 2) {
$type = "INT2";
}
if ($size <= 4) {
$type = "INT";
}
if ($size > 4) {
$type = "INT8";
}
break;
case "varchar":
$type = "VARCHAR($size)";
break;
}
$default = "DEFAULT '$default'";
//After is not implemented in postgesql
//if (!empty($after)) {
// $after = "AFTER '$after'";
//}
if (!empty($oldfield)) {
execute_sql("ALTER TABLE {$CFG->prefix}$table RENAME COLUMN $oldfield TO $field");
} else {
execute_sql("ALTER TABLE {$CFG->prefix}$table ADD COLUMN $field $type");
}
/* SETTING OF COLUMN TO NULL/NOT NULL
IS NOT POSIBLE BEFORE POSTGRESQL 7.3
THIS COMMENTED OUT UNTIL I FIGuRE OUT HOW GET POSTGESQL VERSION FROM ADODB
//update default values to table
if ($null == "NOT NULL") {
execute_sql("UPDATE {$CFG->prefix}$table SET $field=$default where $field=NULL");
execute_sql("ALTER TABLE {$CFG->prefix}$table ALTER COLUMN $field SET $null");
} else {
execute_sql("ALTER TABLE {$CFG->prefix}$table ALTER COLUMN $field DROP NOT NULL"
}
*/
execute_sql("ALTER TABLE {$CFG->prefix}$table ALTER COLUMN $field SET $default");
break;
default:
switch (strtolower($type)) {