Nov 21, 2009
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Making Something In Mysql Happen Only Once

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Making Something In Mysql Happen Only Once

Feelay
Hey! I know I am asking alot. But much is happening theese days.
Sorry if I disturb with my questions.

The thing I am trying to do is:
Ex. If the user becomes level 2, he should get 5 skill points. I can't do this:
CODE
if($userlevel=5){
mysql_query("UPDATE user SET skillpoints =$points+5");}

because then it would update everytime the code was loaded. I hope you understand what I am trying to do. If not, tell me smile.gif and i'll try to explain better.

Thanks //Feelay

Comment/Reply (w/o sign-up)

PerHapsYouSeen
why dont't you add a column to store the last time he was got skill points. Isn't is much easier.

Comment/Reply (w/o sign-up)

mastercomputers
Hey Feelay,

All I noticed is the common mistake with doing comparisons.

CODE
if($userlevel = 5)

is not the same as
CODE
if($userlevel == 5)


The first one is an assignment which means you'll make $userlevel become 5 and will result in true.

The second one will not solve the issue though, you really need to do something that PerhapsYouSeen has suggested and add a column to record that they have gotten their points, then you just need to check that first before you give them points.

Cheers,

MC


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Feelay
sorry tongue.gif but I don't understand tongue.gif

Comment/Reply (w/o sign-up)

yordan
QUOTE(Feelay @ Feb 19 2008, 12:09 PM) *
sorry tongue.gif but I don't understand tongue.gif

He was explaining that your code does not test that the userlevel is 5.
Your code is forcing userlevel to be level 5, which is probably not what you want.

Comment/Reply (w/o sign-up)

Feelay
Oh. but my code was just an example.
I just wanted to show, that if I wrote that code, it would give the user 5 skill points every time the page was loaded. but I want it to give the user 5 skill points, only the moment the user reach level 5 (for ex.).

and between, I thougt of making a colum for the points, but the user will be able to "buy" health and strenght and stuff for theese points. so they (the points) will become 0 anyway =S

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pyost
You have a script that increases a player's level if a condition is fulfilled, right? So why not just increase the points at the sime time you increase his/hers level?

Comment/Reply (w/o sign-up)

Feelay
because the script says:

If the user exp is more than 100, the user level should be changed to level 2 (etc.).. And that script runs everytime the user login. It would not work.

Comment/Reply (w/o sign-up)

yordan
OK, it seems that you definitively need a user status column in a table. With a value like "3065" if the user is at level 3 and has 65 lifehalth points. Or value 4100 if level 4 with 100 points. You change this value only once (when he goes to level 5) and you read the value each time the player logs in.

Comment/Reply (w/o sign-up)

pyost
QUOTE(Feelay @ Feb 19 2008, 09:10 PM) *
because the script says:

If the user exp is more than 100, the user level should be changed to level 2 (etc.).. And that script runs everytime the user login. It would not work.


Why not "If the user exp is more than 100, the user level should be changed to level 2, and the user should get skill points (etc.).."?

Comment/Reply (w/o sign-up)


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