lab-12.md

@@ -21,7 +21,7 @@ see lecture 11 notes, also
 
 N.B. file permissions on igor: see next slide
 
-## file permissions on igor
+## before we start: checking file permissions on igor
 
 * th web user on igor is 'nobody' (verify this yourself with `ps aux | grep httpd`)
 * we don't have permission on igor to change group ownership of directories to nobody
@@ -31,7 +31,7 @@ N.B. file permissions on igor: see next slide
 
 there's some other useful information at https://www.doc.gold.ac.uk/intranet/it/dept-faq.html
 
-## adding album covers to record store
+## exercise: adding album covers to record store
 
 this is an exercise for the lab, to be continued during the week if you don't finish. 
 
@@ -39,7 +39,7 @@ we're going to add images to our record store database.
 
 start from the week-8 version that sorrel shared with you. 
 
-## backing up the database
+## 0. backing up the database
 
 this will mean altering the database, not just branching the code. 
 so back up your database!
@@ -47,11 +47,11 @@ so back up your database!
 * see sorrel's week 8 lectures. 
 * also see https://dev.mysql.com/doc/refman/5.0/en/mysqldump-copying-database.html
 
-## alter database
+## 1. alter database
 
 * add a column for image (name) to the database
 
-## modify form
+## 2. modify form
 
 need to add to the form:
 
@@ -59,24 +59,26 @@ need to add to the form:
 * a hidden field for `MAX_FILE_SIZE` 
 * input `type="file"` 
 
-## uploads directory
+## 3. create uploads directory
 
 create an uploads directory
 change permissions so it's writeable by the web server process
 
-## handling the upload
+## 4. handling the upload
 
 add code to handle the image upload (see week 11 slides)
 
-## register the image with the database
+## 5. register the image with the database
 
 add the image to the database query
 
-## display the image
+## 6. display the image
 
 display the image in the record listings
 
-## cookies
+## 7. extension work: cookies and sessions
+
+## 7.1 cookies
 
 create a simple test to show you can use cookies. 
 
@@ -85,7 +87,7 @@ see lecture 11 notes, also
 * http://www.w3schools.com/php/php_cookies.asp
 * http://php.net/manual/en/features.cookies.php
 
-## sessions
+## 7.2 sessions
 
 create a simple test to show you can use sessions.