Query with advance Grouping

1/16/2017 10:58 am | #1 danielsebas

Hi, I want to do a query where I have a table for products and this table is linked to a category table so for 1 category I have 4 or 5 products, the tables are linked like this:

products.prodCATID = category.categoryID

|PRODUCT | CATEGORY |
-------------------------------------
|Product 1 | hammers
|Product 2 | hammers
|Product 3 | screwdrivers
|Product 4 | screwdrivers
|Product 5 | sockets

I want to do a recordset that when I repeat it in the page I can have a list like this (were the categories won't repeat with each product, but with the group of products:

Hammers
Product 1
Product 2

Screwdrivers
Product 3
Product 4

Sockets
Product 5

My recordset is build like this:

$products = new WA_MySQLi_RS("products",$conn_mysqli_base,3);
$products->setQuery("SELECT products.productsID, products.productsNOM, products.productsADD, products.productsSUBCAT, products.productsORD, categoy.categoryID, category.categoryNOM, subcategory.subcatID, subcategory.subcatNOM, subcategory.subcatCATID FROM (((products LEFT JOIN subcategory ON products.productsSUBCAT = subcategory.subcatID) LEFT JOIN category ON subcategory.subcatCATID = category.categoryID WHERE subcategory.subcatCATID = ? ORDER BY products.productsORD ASC");
$products->bindParam("i", "".$_GET['cat']  ."", "-1"); //colname_1
$products->execute();

1/16/2017 2:37 pm | #2 Ray BorduinWebAssist

You have two options. You would either need to hand code some IF statements and keep track of the previous category so that it doesn't get repeated. I've done it this way, but the code can be a little tricky.

The other option is to use two recordsets. Create a recordset for the categories alone and loop on those. Then create a second recordset and filter it based on a CategoryID and set the CategoryID to the value from the category recordset. Then add the product information into a repeat region on the page below the category repeat region.

Then you can manually copy and paste the product code and repeated region inside of the category repeat region.

1/16/2017 3:15 pm | #3 danielsebas

Thank you Ray, I did this, but the information of the products is repeating the same for all categories:

<?php
$breadcrumbs = new WA_MySQLi_RS("breadcrumbs",$conn_mysqli_base,0);
$breadcrumbs->setQuery("SELECT * FROM subcategoria, categoria WHERE categoria.categoriaID = subcategoria.subcatCATID AND subcategoria.subcatCATID = ?");
$breadcrumbs->bindParam("i", "".$_GET['cat']  ."", "-1"); //colname
$breadcrumbs->execute();
?>
<?php
$fotos = new WA_MySQLi_RS("fotos",$conn_mysqli_base,0);
$fotos->setQuery("SELECT fotos.fotosID, fotos.fotosNOM, fotos.fotosADD, fotos.fotosSUBCAT, fotos.fotosLARGOID, fotos.fotosCABID, fotos.fotosORD, largo.largoID, largo.largoDES, categoria.categoriaID, categoria.categoriaNOM, cabeza.cabezaID, cabeza.cabezaDES, subcategoria.subcatID, subcategoria.subcatNOM, subcategoria.subcatCATID FROM (((fotos LEFT JOIN largo ON fotos.fotosLARGOID = largo.largoID) LEFT JOIN cabeza ON fotos.fotosCABID = cabeza.cabezaID) LEFT JOIN subcategoria ON fotos.fotosSUBCAT = subcategoria.subcatID) LEFT JOIN categoria ON subcategoria.subcatCATID = categoria.categoriaID WHERE subcategoria.subcatID = ? ORDER BY fotos.fotosORD ASC");
$fotos->bindParam("i", "".($breadcrumbs->getColumnVal("subcatID"))  ."", "-1"); //colname_1
$fotos->execute();
?>

<?php
while(!$breadcrumbs->atEnd()) {
?>
		  <div class="row">
		    <div class="col-md-12">
		      <div class="subcat-titulo">
		        <h4><?php echo($breadcrumbs->getColumnVal("subcatNOM")); ?></h4>
	          </div>
	        </div>
		    <?php
while(!$fotos->atEnd()) {
?>
		      <div class="col-sm-6 col-md-4">
		        <div class="thumbnail"> <img class="img-responsive center-block" src="media/gallery/<?php echo($fotos->getColumnVal("categoriaID")); ?>/<?php echo($fotos->getColumnVal("subcatID")); ?>/<?php echo($fotos->getColumnVal("fotosADD")); ?>" alt=""/>
		          <div class="caption caption_prod"><?php echo($fotos->getColumnVal("fotosNOM")); ?></div>
	            </div>
	        </div>
		      <?php
  $fotos->moveNext();
}
$fotos->moveFirst(); //return RS to first record
?>
	    </div>
		  <?php
  $breadcrumbs->moveNext();
}
$breadcrumbs->moveFirst(); //return RS to first record
?>

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Query with advance Grouping

1/16/2017 10:58 am | #1 danielsebas