mirror of
https://github.com/xevidos/codiad.git
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440 lines
No EOL
11 KiB
PHP
Executable file
440 lines
No EOL
11 KiB
PHP
Executable file
<?php
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require_once( __DIR__ . "/class.sql.conversions.php" );
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require_once( __DIR__ . "/../permissions/class.permissions.php" );
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class sql {
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const DB_TYPES = array(
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"MySQL" => "mysql",
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"PostgreSQL" => "pgsql",
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//"SQLite" => "sqlite",
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);
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public $connection = null;
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public $conversions = null;
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public $identifier_character = null;
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protected static $instance = null;
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public function __construct() {
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$this->conversions = new sql_conversions();
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}
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public function close() {
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$this->connection = null;
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}
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public function connect() {
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if( $this->connection == null ) {
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$host = DBHOST;
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$dbname = DBNAME;
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$dbtype = DBTYPE;
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$username = DBUSER;
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$password = DBPASS;
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$options = array(
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PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION,
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);
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$this->connection = new PDO( "{$dbtype}:host={$host};dbname={$dbname}", $username, $password, $options );
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}
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return( $this->connection );
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}
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public function create_table( $table_name, $fields=array(), $attributes=array() ) {
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$query = $this->conversions->table( $table_name, $fields, $attributes );
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//$this->query( $query, array(), array(), null, "rowCount" );
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}
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public function create_default_tables() {
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$create_tables = $this->create_tables(
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array(
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"active" => array(
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"fields" => array(
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"username" => "string",
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"path" => "text",
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"position" => "string",
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"focused" => "string"
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),
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"attributes" => array(
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"username" => array( "not null" ),
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"path" => array( "not null" ),
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"focused" => array( "not null" ),
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)
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),
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"access" => array(
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"fields" => array(
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"project" => "int",
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"user" => "int",
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"level" => "int",
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),
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"attributes" => array(
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"id" => array( "not null" ),
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"user" => array( "not null" ),
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"level" => array( "not null" ),
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)
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),
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"options" => array(
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"fields" => array(
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"id" => "int",
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"name" => "string",
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"value" => "text",
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),
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"attributes" => array(
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"id" => array( "id" ),
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"name" => array( "not null", "unique" ),
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"value" => array( "not null" ),
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)
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),
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"projects" => array(
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"fields" => array(
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"id" => "int",
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"name" => "string",
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"path" => "text",
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"owner" => "string",
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),
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"attributes" => array(
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"id" => array( "id" ),
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"name" => array( "not null" ),
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"path" => array( "not null", "unique" ),
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"owner" => array( "not null", "unique" ),
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)
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),
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"users" => array(
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"fields" => array(
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"id" => "int",
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"first_name" => "string",
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"last_name" => "string",
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"username" => "string",
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"password" => "text",
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"email" => "string",
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"project" => "int",
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"access" => "string",
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"token" => "string",
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),
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"attributes" => array(
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"id" => array( "id" ),
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"username" => array( "not null", "unique" ),
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"password" => array( "not null" ),
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"access" => array( "not null" ),
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)
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),
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"user_options" => array(
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"fields" => array(
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"id" => "int",
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"name" => "string",
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"username" => "string",
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"value" => "text",
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),
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"attributes" => array(
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"id" => array( "id" ),
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"name" => array( "not null", "unique" ),
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"username" => array( "not null", "unique" ),
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"value" => array( "not null" ),
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)
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),
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)
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);
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$structure_updates = $this->update_table_structure();
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$result = array(
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"create_tables" => $create_tables,
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"structure_updates" => $structure_updates
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);
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exit( json_encode( $result, JSON_PRETTY_PRINT ) );
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}
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public function create_tables( $table ) {
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/**
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Tables layout
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array(
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"table_name" => array(
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"fields" => array(
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"id" => "int",
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"test_field" => "string"
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),
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"attributes" => array(
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"id" => array( "id" ),
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"test_field" => array( "not null" ),
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)
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),
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"table2_name" => array(
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"fields" => array(
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"id" => "int",
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"test_field" => "string"
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),
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"attributes" => array(
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"id" => array( "id" ),
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"test_field" => array( "not null" ),
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)
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)
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);
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*/
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try {
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$query = $this->conversions->tables( $table );
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$connection = $this->connect();
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$result = $connection->exec( $query );
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return true;
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} catch( exception $error ) {
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return $error->getMessage();
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}
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}
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public static function escape_identifier( $i ) {
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$i = preg_replace('/[^A-Za-z0-9_]+/', '', $i );
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return $i;
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}
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public static function is_not_error( $i ) {
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$return = false;
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$result = json_decode( $i );
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if ( json_last_error() !== JSON_ERROR_NONE || ( ! $i == NULL && ! $i["status"] == "error" ) ) {
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$return = true;
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}
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return( $return );
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}
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public static function get_instance() {
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// If the single instance hasn't been set, set it now.
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if ( null == self::$instance ) {
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self::$instance = new self;
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}
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return self::$instance;
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}
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public function select( $table, $fields=array(), $where=array() ) {
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$array = $this->conversions->select( $table, $fields, $where );
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$query = $array[0];
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$bind_vars = $array[1];
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$result = $this->query( $query, $bind_vars, array() );
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//echo var_dump( $query, $bind_vars ) . "<br>";
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return $result;
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}
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public function update( $table, $fields=array(), $where=array() ) {
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$query = $this->conversions->update( $table, $fields, $where );
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//echo var_dump( $query ) . "<br>";
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//return $query;
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}
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public function update_table_structure() {
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$status_updates = array();
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$sql_conversions = new sql_conversions();
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try {
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$access_query = "INSERT INTO access( project, user, level ) VALUES ";
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$projects = $this->query( "SELECT id, access FROM projects", array(), array(), "fetchAll", "exception" );
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$users = $this->query( "SELECT id, username FROM users", array(), array(), "fetchAll", "exception" );
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$delete = Permissions::LEVELS["delete"];
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foreach( $users as $row => $user ) {
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foreach( $projects as $row => $project ) {
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$access = json_decode( $project["access"], true );
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if( ! is_array( $access ) || empty( $access ) ) {
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continue;
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}
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foreach( $access as $granted_user ) {
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if( $granted_user == $user["username"] ) {
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$access_query .= "( {$project["id"]}, {$user["id"]}, $delete ),";
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}
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}
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}
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}
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if( $access_query !== "INSERT INTO access( project, user, level ) VALUES " ) {
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$result = $this->query( substr( $access_query, 0, -1 ), array(), 0, "rowCount", "exception" );
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}
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$result = $this->query( "ALTER TABLE projects DROP COLUMN access", array(), 0, "rowCount" );
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$status_updates["access_column"] = "Cached data and removed access column.";
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} catch( Exception $error ) {
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//The access field is not there.
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//echo var_export( $error->getMessage(), $access_query );
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$status_updates["access_column"] = array(
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"error_message" => $error->getMessage(),
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"dev_message" => "No access column to convert."
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);
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}
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try {
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$update_query = "";
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$projects = $this->query( "SELECT id, path FROM projects", array(), array(), "fetchAll", "exception" );
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$result = $this->query( "SELECT project FROM users", array(), array(), "fetchAll", "exception" );
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$convert = false;
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$delete = Permissions::LEVELS["delete"];
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foreach( $result as $row => $user ) {
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if( ! is_numeric( $user["project"] ) ) {
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$convert = true;
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}
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foreach( $projects as $row => $project ) {
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if( $project["path"] == $user["project"] ) {
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$update_query .= "UPDATE users SET project={$project["id"]};";
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}
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}
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}
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if( $convert && strlen( $update_query ) > 0 ) {
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//change project to users table
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$result = $this->query( "ALTER TABLE users DROP COLUMN project", array(), array(), "rowCount", "exception" );
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$result = $this->query( "ALTER TABLE users ADD COLUMN project " . $sql_conversions->data_types["int"][DBTYPE], array(), array(), "rowCount", "exception" );
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$result = $this->query( $update_query, array(), array(), "rowCount", "exception" );
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} else {
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$status_updates["users_current_project"] = array( "dev_message" => "Users current project column to project_id conversion not needed." );
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}
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} catch( Exception $error ) {
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//echo var_dump( $error->getMessage() );
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$status_updates["users_current_project"] = array(
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"error_message" => $error->getMessage(),
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"dev_message" => "Users current project column to project_id conversion failed."
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);
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}
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try {
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$result = $this->query( "ALTER TABLE users DROP COLUMN groups", array(), array(), "rowCount", "exception" );
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$status_updates["users_groups_column"] = array( "dev_message" => "Removal of the groups column from the users table succeeded." );
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} catch( Exception $error ) {
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//echo var_dump( $error->getMessage() );
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$status_updates["users_groups_column"] = array(
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"error_message" => $error->getMessage(),
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"dev_message" => "Removal of the groups column from the users table failed. This usually means there was never one to begin with"
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);
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}
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if( DBTYPE === "mysql" || DBTYPE === "pgsql" ) {
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$constraint = ( DBTYPE === "mysql" ) ? "INDEX" : "CONSTRAINT";
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try {
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$projects = $this->query( "ALTER TABLE projects DROP $constraint path1500owner255;", array(), 0, "rowCount", "exception" );
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} catch( Exception $error ) {
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//echo var_dump( $error->getMessage() );
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$status_updates["path_owner_constraint"] = array(
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"error_message" => $error->getMessage(),
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"dev_message" => "Removal of path1500owner255 constraint in the projects table failed. This usually means there was never one to begin with"
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);
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}
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try {
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$projects = $this->query( "ALTER TABLE active DROP $constraint username255path1500;", array(), 0, "rowCount", "exception" );
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} catch( Exception $error ) {
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//echo var_dump( $error->getMessage() );
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$status_updates["username_path_constraint"] = array(
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"error_message" => $error->getMessage(),
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"dev_message" => "Removal of username255path1500 constraint in the active table failed. This usually means there was never one to begin with"
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);
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}
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}
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return $status_updates;
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}
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public function query( $query, $bind_variables, $default, $action='fetchAll', $errors="default" ) {
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/**
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* Errors:
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* default - this value could be anything such as true or foobar
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* message
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* exception
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*/
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try {
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$connection = $this->connect();
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$statement = $connection->prepare( $query );
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$statement->execute( $bind_variables );
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switch( $action ) {
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case( 'rowCount' ):
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$return = $statement->rowCount();
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break;
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case( 'fetch' ):
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$return = $statement->fetch( \PDO::FETCH_ASSOC );
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break;
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case( 'fetchAll' ):
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$return = $statement->fetchAll( \PDO::FETCH_ASSOC );
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break;
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case( 'fetchColumn' ):
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$return = $statement->fetchColumn();
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break;
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default:
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$return = $statement->fetchAll( \PDO::FETCH_ASSOC );
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break;
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}
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} catch( exception $error ) {
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$return = $default;
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if( $errors == "message" ) {
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$return = json_encode( array( $error->getMessage() ) );
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} elseif( $errors == "exception" ) {
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throw $error;
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}
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}
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$this->close();
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return( $return );
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}
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}
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?>
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