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Add methods get_database_indexes and update_indexes

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markjcrane
2025-11-27 08:07:07 -07:00
parent 389c47faf3
commit eb964855fe
1 changed files with 109 additions and 1 deletions
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110
resources/classes/database.php
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@@ -715,7 +715,7 @@ class database {
case 'count':
return $this->count();
default:
trigger_error('Object property not available', E_USER_ERROR);
trigger_error('Object property not available. Name: '.$name, E_USER_ERROR);
}
}
@@ -3601,6 +3601,114 @@ class database {
return $views;
}
}
/**
* Get a list of all the database indexes.
*
* @return array get the indexes from the database
*/
public function get_database_indexes() {
// predefine the array
$database_indexes = array();
// get the index from the database
if ($this->type == 'pgsql') {
$sql = "SELECT \n";
$sql .= " schemaname AS schema, \n";
$sql .= " tablename AS table, \n";
$sql .= " indexname AS index_name, \n";
$sql .= " indexdef AS definition \n";
$sql .= "FROM \n";
$sql .= " pg_indexes \n";
$sql .= "WHERE \n";
$sql .= " schemaname NOT IN ('pg_catalog', 'information_schema') \n";
$sql .= "ORDER BY schemaname, tablename, indexname; \n";
$prep_statement = $this->db->prepare($sql);
$prep_statement->execute();
$pg_indexes = $prep_statement->fetchAll(PDO::FETCH_NAMED);
$database_indexes = array();
foreach($pg_indexes as $row) {
$database_indexes[$row['table']][$row['index_name']] = $row['definition'];
}
}
return $database_indexes;
}
/**
* Update missing indexes using the applications list
*
* @return array shows a list indexes that were added
*/
public function update_indexes() {
// get the $apps array from the installed apps from the core and mod directories
database::get_apps();
// build the list of tables
$tables = array();
foreach(self::$apps as $app) {
if (!empty($app['db'])) {
$tables = array_merge($tables, $app['db']);
}
}
// get a list of all the database indexes.
$database_indexes = $this->get_database_indexes();
// initialize the array
$array = array();
// loop through all of the tables
$i = 1;
foreach($tables as $table) {
// get the table name
if (is_array($table['table']['name'])) {
$table_name = $table['table']['name']['text'];
}
else {
$table_name = $table['table']['name'];
}
// skip deprecated tables
if (isset($table['table']['deprecated'])) {
continue;
}
// loop through all columns in the table
foreach ($table['fields'] as $column) {
// skip deprecated columns
if (isset($column['deprecated'])) {
continue;
}
if (!empty($column['key']['type'])) {
// get the key type
$key_type = $column['key']['type'];
if ($key_type == 'foreign') {
// get the column name
if (is_array($column['name'])) {
$column_name = $column['name']['text'];
}
else {
$column_name = $column['name'];
}
// create the database index - postgresql index name limited to 63 bytes
if ($this->type == 'pgsql' && !isset($database_indexes[$table_name][substr($table_name . "_" . $column_name . "_fkey", 0, 63)])) {
$sql = "CREATE INDEX " . $table_name . "_" . $column_name . "_fkey ON " . $table_name . " (" . $column_name . ");\n";
$prep_statement = $this->db->prepare($sql);
$prep_statement->execute();
$row['table_name'] = $table_name;
$row['column_name'] = $column_name;
$row['sql'] = $sql;
$array[] = $row;
}
}
}
}
}
//return the results
return $array;
}
} // class database
// addtitional functions for sqlite