Database design

Database Design

For a simple image gallery like this we only need two tables, tbl_album and tbl_image. Here is the SQL to create these tables

Source code : image-gallery.sql

CREATE TABLE tbl_album (
al_id INT NOT NULL AUTO_INCREMENT,
al_name VARCHAR(64) NOT NULL,
al_description TEXT NOT NULL,
al_image VARCHAR(64) NOT NULL,
al_date DATETIME NOT NULL,
PRIMARY KEY(al_id)
);

CREATE TABLE tbl_image (
im_id INT NOT NULL AUTO_INCREMENT,
im_album_id INT NOT NULL,
im_title VARCHAR(64) NOT NULL,
im_description TEXT NOT NULL,
im_type VARCHAR(30) NOT NULL,
im_image VARCHAR(60) NOT NULL,
im_thumbnail VARCHAR(60) NOT NULL,
im_date DATETIME NOT NULL,
PRIMARY KEY(im_id)
);

Directory Layout

The image below show the file organization for the image gallery

The images directory is where we kept all of the images. The image icons are stored in the thumbnail sub-directory uder the gallery. Please remember to set write access to the album, gallery, and thumbnail directories otherwise the gallery script will not be able to save the images.

Configurations

There are some constants in the config file that you should change :

1. ALBUM_IMG_DIR, GALLERY_IMG_DIR
   These are the absolute path to the images directories
   
   
2. THUMBNAIL_WIDTH
   The PHP script will create a thumbnail ( icons ) for each image that you upload. In addition when you add an album image that image will also resized automatically.

One more note. If you want to test this gallery on your own computer please make sure you already have GD library installed. To check if GD library is installed on your system save the following code and run it.