Question

I’m implementing a file upload, Directory and Imageupload class in php. What I have planned to implement in Directory class, are the following functions such as:

1. Retrieve list of files, folder in a directory
2. Create folder, search recursively in a directory {path}

In FileHandling.class.php following methods such as:

1. whether file exists in a directory, . c
2. check file extension of file uploading
3. Handling moving files from a location to another
4. Renaming a file

In imageUpload.class.php functions such as:

1. resizing image,
2. creating watermark.

What I would like to know , where should the function exist, should I have only one fileHandling.class.php and it includes method of Directory.class.php, or keep them separate.

Should ImageUpload.class.php be composition of fileUpload.class.php? And what particular software pattern can I apply here such as Facade, Singleton etc.

Answer 1

You should confine all FileSystem operations to one Factory. Use the Factory pattern to compartmentalize Uploads, File Listing etc