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Code Issues Releases Wiki Activity

SQLite: Fix changing primary key

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This commit is contained in:
Jakub Vrana
2013-08-08 19:07:18 -07:00
parent 7aca91a808
commit bc725959e6
1 changed files with 39 additions and 47 deletions
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86
adminer/drivers/sqlite.inc.php
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@@ -449,41 +449,15 @@ if (isset($_GET["sqlite"]) || isset($_GET["sqlite2"])) {
}
$alter = array();
$originals = array();
$primary_key = false;
foreach ($fields as $field) {
if ($field[1]) {
if ($field[1][6]) {
$primary_key = true;
}
$alter[] = ($use_all_fields ? " " : "ADD ") . implode($field[1]);
$alter[] = ($use_all_fields ? $field[1] : "ADD " . implode($field[1]));
if ($field[0] != "") {
$originals[$field[0]] = $field[1][0];
}
}
}
if ($use_all_fields) {
if ($table != "") {
$indexes = array();
foreach (indexes($table) as $key_name => $index) {
$columns = array();
foreach ($index["columns"] as $key => $column) {
if (!$originals[$column]) {
continue 2;
}
$columns[] = $originals[$column] . ($index["descs"][$key] ? " DESC" : "");
}
$columns = "(" . implode(", ", $columns) . ")";
if ($index["type"] != "PRIMARY") {
$indexes[] = array($index["type"], $key_name, $columns);
} elseif (!$primary_key) {
$foreign[] = " PRIMARY KEY $columns";
}
}
}
if (!recreate_table($table, $name, $alter, $originals, $foreign, $indexes)) {
return false;
}
} else {
if (!$use_all_fields) {
foreach ($alter as $val) {
if (!queries("ALTER TABLE " . table($table) . " $val")) {
return false;
@@ -492,6 +466,8 @@ if (isset($_GET["sqlite"]) || isset($_GET["sqlite2"])) {
if ($table != $name && !queries("ALTER TABLE " . table($table) . " RENAME TO " . table($name))) {
return false;
}
} elseif (!recreate_table($table, $name, $alter, $originals, $foreign)) {
return false;
}
if ($auto_increment) {
queries("UPDATE sqlite_sequence SET seq = $auto_increment WHERE name = " . q($name)); // ignores error
@@ -499,9 +475,40 @@ if (isset($_GET["sqlite"]) || isset($_GET["sqlite2"])) {
return true;
}
function recreate_table($table, $name, $alter, $originals, $foreign, $indexes) {
function recreate_table($table, $name, $alter, $originals, $foreign, $indexes = array()) {
queries("BEGIN");
if ($table != "") {
$primary_key = false;
foreach ($alter as $key => $field) {
if ($field[6]) {
$primary_key = true;
}
$alter[$key] = " " . implode($field);
}
$drop_indexes = array();
foreach ($indexes as $key => $val) {
if ($val[2] == "DROP") {
$drop_indexes[$val[1]] = true;
unset($indexes[$key]);
}
}
foreach (indexes($table) as $key_name => $index) {
$columns = array();
foreach ($index["columns"] as $key => $column) {
if (!$originals[$column]) {
continue 2;
}
$columns[] = $originals[$column] . ($index["descs"][$key] ? " DESC" : "");
}
$columns = "(" . implode(", ", $columns) . ")";
if (!$drop_indexes[$key_name]) {
if ($index["type"] != "PRIMARY") {
$indexes[] = array($index["type"], $key_name, $columns);
} elseif (!$primary_key) {
$foreign[] = " PRIMARY KEY $columns";
}
}
}
foreach (foreign_keys($table) as $foreign_key) {
$columns = array();
foreach ($foreign_key["source"] as $column) {
@@ -559,28 +566,13 @@ if (isset($_GET["sqlite"]) || isset($_GET["sqlite2"])) {
function alter_indexes($table, $alter) {
foreach ($alter as $primary) {
if ($primary[0] == "PRIMARY") {
$indexes = array();
foreach (indexes($table) as $key_name => $index) {
$columns = array();
foreach ($index["columns"] as $key => $column) {
$columns[] = idf_escape($column) . ($index["descs"][$key] ? " DESC" : "");
}
$indexes[$key_name] = array($index["type"], $key_name, "(" . implode(", ", $columns) . ")");
}
foreach ($alter as $val) {
if ($val[2] == "DROP") {
unset($indexes[$val[1]]);
} elseif ($val != $primary) {
$indexes[] = $val;
}
}
$alter = array();
$fields = array();
$originals = array();
foreach (fields($table) as $name => $field) {
$alter[] = " " . implode(process_field($field, $field));
$fields[] = process_field($field, $field);
$originals[$name] = idf_escape($name);
}
return recreate_table($table, $table, $alter, $originals, array(" PRIMARY KEY $primary[2]"), $indexes);
return recreate_table($table, $table, $fields, $originals, array(), $alter);
}
}
foreach (array_reverse($alter) as $val) {