Unsuscribe me please.

El 26/11/12 23:01, Karl DeSaulniers escribió:

On Nov 26, 2012, at 7:29 PM, Bastien wrote:

Bastien Koert

On 2012-11-26, at 7:43 PM, Karl DeSaulniers <k...@designdrumm.com> wrote:

Hello all,
Quick question.
What is the best way to store a comma separated list of discount codes in a InnoDB? Text, varchar, blob, ? I want to be able to store discount codes offered to users in their profile, in their cart, etc. So I am thinking of storing the codes as a comma separated list that I can then refer to, add to or remove codes from. The codes will change every once and a while and they list of codes may be rather large after say a year,
so I am shying away from an enum() or anything like that.

Any help/pointers is greatly appreciated.


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Is there a way to group these codes? Can profiles be the same for different users?

If so another table for the code and a join table for the users to codes might be simpler to manage


Hi Bastien,
Thanks for your reply. Sorry, I should have elaborated.

There is a table that holds all the discount codes. Keeps them grouped with a product id or if they are to be applied cart wide. So the field I am asking for will hold codes that are being used by either a product or by a user or if it is a cart discount. Each have their own tables, the products, the users and the cart. In these tables is where I need to insert this field.
An example of the discount table would be like:

Discount table:

| discount code | product id | discount perc. | discount type | +---------------------+---------------------+--------------------------+-----------------------------------+ | 8lKzv_=== | 22 | 20 | item | +---------------------+---------------------+--------------------------+-----------------------------------+ | NpLK23 | 0 | 50 | cart | +---------------------+---------------------+--------------------------+-----------------------------------+

but in the user table for instance:

User table:

 | user_discounts                               |
 |    8lKzv_===, YjMlio_===, NpLK23, hDflp0_=    |

Just trying to figure out the best way to store multiple variables if you will in one field like so. Or if this is even the best way to do such a thing. I am open to alternatives. I will need to read this new filed out of the database as an array that I can then utilize with an in_array or something of the sort. There may be a best practices on this that I am not aware of with my somewhat limited PHP exp.
Hope that makes more sense.


Karl DeSaulniers
Design Drumm


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