I have a main table called "product"
that is linked with three tables:
"product_type",
"feature",
"type_feature"
and a cross table called "product_feature"
that contains several features of the same product.
Example one record:
I have something similar like this:
product_type
id_product_type name
1 Phone
feature
id_feature name
1 Memory
2 Color
3 Memory Ram
feature_type
id_feature_type id_feature value
1 1 16GB
2 1 32GB
3 2 Blue
4 2 Black
5 3 2GB
6 3 3GB
product
id_product id_product_type price quantity model
1 1 100$ 5 Moto-G7
Cross table "product_feature" (linked to "product", "feature" and "feature_type"):
id_feature id_product id_feature_type
1 1 1
2 1 3
3 1 6
I want query show this:
id_product type_name price quantity model feature_name value
1 Phone 100$ 5 Moto-G7 Memory 16GB
feature_name2 value2 feature_name3 value3
Color Blue Memory Ram 3GB
I tried this, but only I have only one feature_name and value, and I need three:
SELECT p.id_product, pt.name, model, price, quantity, f.name AS feature, ft.value
FROM product p
LEFT JOIN product_type pt ON pt.id_product_type = p.id_product_type
LEFT JOIN product_feature pf ON pf.id_product = p.id_product
LEFT JOIN feature f ON f.id_feature = pf.id_feature
LEFT JOIN feature_type ft ON ft.id_feature_type = pf.id_feature_type
GROUP BY p.id_product;
Try this query, It will give you the results:
SELECT product.*, product_type.name as TypeName, (SELECT CONCAT( GROUP_CONCAT(feature_type.value), "|", GROUP_CONCAT(feature.name) ) FROM `product_feature` INNER JOIN feature_type on product_feature.id_feature_type = feature_type.id_feature_type INNER JOIN feature on feature_type.id_feature = feature.id_feature WHERE product_feature.id_product=1 GROUP BY product_feature.id_product) as options FROM `product` LEFT JOIN product_type on product.id_product_type = product_type.id_product_type
You will get options for your product and you have to explode() those options by "|" and you can count how many options you have by using $count= count(explode("|", $options))
By this way you can get all options .
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