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Hi everyone,
 

After a long time im starting again with php and mysql

i still have my doubts about the layout of the mysql tables


I have a product

1. shake 1
2. 500gram
3. 26,50

4.banaan chocolate

But i have the same shake.

but a different price with different flavors

1. shake 2
2. 750 gram
3. 28.90

4. strawberry, mango, vanilla

What is the best way to construct the tables?
This is the site:
http://www.scitec-sportvoeding.nl/winkelwagen.php

Thanks Piet,

Edited by piet bieruik
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https://forums.phpfreaks.com/topic/286140-1-product-multiple-prices-and-flavors/
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Is it just me or is it that the amount and price vary based on the flavor? Table 1 for the shake by itself, and table 2 for the flavor, amount, and price - and a foreign key to the shake.

products

id | whatever
---+--------
 1 | shake 1
 2 | shake 2

flavors? or maybe product variants?

id | amount | price | flavor     | product
---+--------+-------+------------+--------
 1 |    500 | 26,50 | banana     |       1
 2 |    500 | 26,50 | chocolate  |       1
 3 |    750 | 28,90 | strawberry |       2
 4 |    750 | 28,90 | mango      |       2
 5 |    750 | 28,90 | vanilla    |       2

I would interpret the "type" of shake as one that has multiple ingredients. So, a pinacolada would have coconut and pineapple. If that is the case, the tables might look more like below. This assumes that each product will have the same sizes available

 

 

products

id | whatever |
---+---------------------
 1 | shake 1  |
 2 | shake 2  |


ingredients (a list of all possible ingredinets)

id | ingredient
---+------------
 1 |  banana   
 2 |  chocolate
 3 |  strawberry
 4 |  mango     
 5 |  vanilla   


product_ingredients (which ingredients go with which shake)

id | prod_id | ingredient_id
----------------------------
 1    1         1
 2    1         2
 3    2         3
 4    2         4
 5    2         5


product_prices (the available sizes for each product and the price)

id | prod_id | size | price
---+---------+------+------
 1 |  1      | 500 | 26,50
 2 |  2      | 500 | 26,50
 3 |  1      | 750 | 28,90
 4 |  2      | 750 | 28,90

i have on stock:

 

1. whey protein prof

920 gram.

strawberry

26,50

 

2. whey protein prof

920gram

banaan

26,50

 

but i have also the same shakes but different weight(ofcourse different price) and sometimes a different flavor.

 

 

3. whey protein prof

5000gram

chocolate

 

4. whey protein prof

5000gram

strawberry

 

etc

 

maby like:

 

id | name |price | size |falvor_id

---+-----------------------------------

1 | shake 1 |26,50 | 920gram|1,3

2 | shake 2 |90,00 |5000gram|2,3,6

Edited by piet bieruik

That is one way NOT to do it.

 

I'd go with something like this

Product
+-----+--------------------+
| id  | description        |
+-----+--------------------+
|  1  | Shake              |
|  2  | Whey protein prof  |
+-----+--------------------+
   |                                                               Flavour
   +---------------------------+                                   +----+-----------------+
                               |                                   | id | flavour         |   
                      Price    |                                   +----+-----------------+
                      +----+---------+------+---------+            |  1 | Banana          |
                      | id | prod_id | size |  price  |            |  2 | Chocolate       |
                      +----+---------+------+---------+            |  3 | Mango           |
                      |  1 |    1    |  500 |   26.50 |            |  4 | Strawberry      |
                      |  2 |    1    |  750 |   28.90 |            |  5 | Vanilla         |
                      |  3 |    2    |  920 |   26.50 |            +----+-----------------+
                      |  4 |    2    | 5000 |  115.50 |               |
                      +----+---------+------+---------+               |
                         |                                            |
                         +-----------------------------------+        |
                                                             |        |
                                                   Available |        |
                                                   +----+--------+---------+
                                                   | id |price_id| flav_id |
                                                   +----+--------+---------+
                                                   |  1 |    1   |    1    |
                                                   |  2 |    1   |    2    |
                                                   |  3 |    2   |    3    |
                                                   |  4 |    2   |    4    |
                                                   |  5 |    2   |    5    |
                                                   |  6 |    3   |    1    |
                                                   |  7 |    3   |    4    |
                                                   |  8 |    4   |    2    |
                                                   |  9 |    4   |    4    |
                                                   +----+--------+---------+
                                                   

SELECT p.description
    , pr.size
    , GROUP_CONCAT(f.flavour SEPARATOR ', ') as flavours
    , pr.price
    FROM product p
        INNER JOIN price pr ON p.id = pr.prod_id
        INNER JOIN available a ON pr.id = a.price_id
        INNER JOIN flavour f ON a.flav_id = f.id
    GROUP BY p.description, pr.size

which should give something like this (no data so not tested)

+----------------------+----------+-----------------------------------------+---------+
| description          | size     | flavours                                | price   | 
+----------------------+----------+-----------------------------------------+---------+ 
| Shake                |   500    | Banana, Chocolate                       |   26.50 |
| Shake                |   750    | Mango, Strawberry, Vanilla              |   28.90 |
| Whey protein prof    |   920    | Banana, Strawberry                      |   26.50 |
| Whey protein prof    |  5000    | Chocolate, Strawberry                   |  115.50 |
                                                    
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