Sindbad~EG File Manager

<?php
/**
 * Model class <i>SIB_Model_Contact</i> represents account
 *
 * @package SIB_Model
 */
class SIB_Model_Contact {

	/**
	 * Tab table name
	 */
	const TABLE_NAME = 'sib_model_contact';

	/**
	 * Holds found campaign count
     *
     * @var int
	 */
	static $found_count;

	/**
	 * Holds all campaign count
     *
     * @var int
	 */
	static $all_count;

	/** Create Table */
	public static function create_table() {
		global $wpdb;
		// create list table
		$creation_query =
			'CREATE TABLE IF NOT EXISTS ' . $wpdb->prefix  . self::TABLE_NAME . ' (
			`id` int(20) NOT NULL AUTO_INCREMENT,
			`email` varchar(255),
            `info` TEXT,
            `code` varchar(100),
            `is_activate` int(2),
			`extra` TEXT,
			PRIMARY KEY (`id`)
			);';
		$wpdb->query( $creation_query );
	}

	/**
	 * Remove table
	 */
	public static function remove_table() {
		global $wpdb;
		$query = 'DROP TABLE IF EXISTS ' . $wpdb->prefix . self::TABLE_NAME . ';';
		$wpdb->query( $query );
	}

    /**
     * Get data by id
     *
     * @param $id
     */
    public static function get_data( $id ) {
        global $wpdb;
        $query = $wpdb->prepare('select * from ' . $wpdb->prefix . self::TABLE_NAME . ' where id= %d ', array(esc_sql($id)));
        $results = $wpdb->get_results($query, ARRAY_A);

		if ( is_array( $results ) ) {
			return $results[0];
		} else {
			return false;
		}
	}

    /**
     * Get data by code
     */
    public static function get_data_by_code( $code ) {
        global $wpdb;
        $query = $wpdb->prepare('select * from ' . $wpdb->prefix . self::TABLE_NAME . ' where code like %s', array(esc_sql($code)));
        $results = $wpdb->get_results($query, ARRAY_A);

		if ( is_array( $results ) && count( $results ) > 0 ) {
			return $results[0];
		} else {
			return false;
		}
	}

    /**
     * Get code by email
     */
    public static function get_data_by_email( $email ) {
        global $wpdb;
        $query = $wpdb->prepare('select * from ' . $wpdb->prefix . self::TABLE_NAME . ' where email like %s', array(esc_sql($email)));
        $results = $wpdb->get_results($query, ARRAY_A);

		if ( is_array( $results ) && count( $results ) > 0 ) {
			return $results[0];
		} else {
			return false;
		}
	}

	/** Add record */
	public static function add_record( $data ) {
		global $wpdb;

		if ( self::is_exist_same_email( $data['email'] ) == true ) {
			return false;
		}

        $query = $wpdb->prepare(
            'INSERT INTO ' . $wpdb->prefix . self::TABLE_NAME . ' (email,info,code,is_activate,extra) VALUES (%s, %s, %s, %d, %s);',
            array(
                esc_sql($data['email']),
                esc_sql($data['info']),
                esc_sql($data['code']),
                esc_sql($data['is_activate']),
                esc_sql($data['extra'])
            )
        );
        $wpdb->query( $query );

		$index = $wpdb->get_var( 'SELECT LAST_INSERT_ID();' );

		return $index;

	}

	public static function is_exist_same_email( $email, $id = '' ) {
		global $wpdb;

        $query = $wpdb->prepare('select * from ' . $wpdb->prefix . self::TABLE_NAME . ' where email like %s ', array(esc_sql($email)));
        $results = $wpdb->get_results($query, ARRAY_A);

		if ( is_array( $results ) && (count( $results ) > 0) ) {
			if ( $id == '' ) {
				return true;
			}
			if ( isset( $results ) && is_array( $results ) ) {
				foreach ( $results as $result ) {
					if ( $result['id'] != $id ) {
						return true;
					}
				}
			}
		}

		return false;
	}

	/** Remove guest */
	public static function remove_record( $id ) {
		global $wpdb;

        $query = $wpdb->prepare('delete from ' . $wpdb->prefix . self::TABLE_NAME . ' where id= %d ', array(esc_sql($id)));
        $wpdb->query( $query );
    }

	/** Get all guests by pagenum, per_page*/
	public static function get_all( $orderby = 'email', $order = 'asc', $pagenum = 1, $per_page = 15 ) {
		global $wpdb;

        $limit = ($pagenum - 1) * $per_page;
        $query = $wpdb->prepare(
            'SELECT * FROM ' . $wpdb->prefix . self::TABLE_NAME . ' ORDER BY %s %s LIMIT %d, %d;',
            array(
                esc_sql($orderby),
                esc_sql($order),
                esc_sql($limit),
                esc_sql($per_page)
            )
        );
        $results = $wpdb->get_results( $query, ARRAY_A );
        self::$found_count = self::get_count_element();

		if ( ! is_array( $results ) ) {
			$results = array();
			return $results;
		}

		return $results;
	}

	/** get all records of table */
	public static function get_all_records() {
		global $wpdb;

		$query = 'select * from ' . $wpdb->prefix . self::TABLE_NAME . ' order by email asc;';

		$results = $wpdb->get_results( $query, ARRAY_A );

		if ( ! is_array( $results ) ) {
			$results = array();
			return $results;
		}

		return $results;
	}

	/** get count of row */
	public static function get_count_element() {
		global $wpdb;

        return $wpdb->get_var( 'Select count(*) from ' . $wpdb->prefix . self::TABLE_NAME . ';' );
	}

	/** update record */
	public static function update_element( $id, $data ) {
		global $wpdb;

		if ( self::is_exist_same_email( $data['email'], $id ) == true ) {
			return false;
		}

        $query = $wpdb->prepare(
            'update ' . self::TABLE_NAME . ' set email= %s, info= %s, code= %s, is_activate= %d, extra= %s  where id= %d;',
            array(
                esc_sql($data['email']),
                esc_sql($data['info']),
                esc_sql($data['code']),
                esc_sql($data['is_activate']),
                esc_sql($data['extra']),
                esc_sql($id)
            )
        );

		$wpdb->query( $query );

		return true;
	}

}