php mysql query dynamic Group by value - php

Question

Hi I have a mysql query that I want to get results by different order by values.
here is the code.
$strQuery =
"SELECT
category.short_description AS category,
asset.asset_code AS code,
asset_model_number.short_description AS model,
asset_custom_field_helper.cfv_1 AS mnfserial,
asset_custom_field_helper.cfv_6 AS proctype,
asset_custom_field_helper.cfv_7 AS hdd,
asset_custom_field_helper.cfv_8 AS type,
asset_custom_field_helper.cfv_9 AS cond,
asset_custom_field_helper.cfv_10 AS drive,
asset_custom_field_helper.cfv_12 AS os,
asset_custom_field_helper.cfv_13 AS cpu,
asset_custom_field_helper.cfv_14 AS ram,
COUNT(*) AS total
FROM
asset_transaction
LEFT JOIN asset
ON asset_transaction.asset_id = asset.asset_id
LEFT JOIN asset_model
ON asset.asset_model_id = asset_model.asset_model_id
LEFT JOIN asset_model_number
ON asset.asset_model_number_id = asset_model_number.asset_model_number_id
LEFT JOIN asset_custom_field_helper
ON asset.asset_id = asset_custom_field_helper.asset_id
LEFT JOIN user_account
ON asset.created_by = user_account.user_account_id
LEFT JOIN category
ON asset_model.category_id = category.category_id
WHERE asset_transaction.transaction_id = ($txnid)
GROUP BY model";
$objDatabase = QApplication::$Database[1];
// Perform the Query
$objDbResult = $objDatabase->Query($strQuery);
This section I want to get results group by model
echo "<h3>Total Model No<br></h3><strong>";
while ($mixRow = $objDbResult->FetchArray()) {
echo $mixRow['model']. " = " .$mixRow['total'];
echo "<br><strong>";
}
Below section I want the results group by type
echo "<h3>Total Products<br></h3><strong>";
echo "<br>";
while ($row = $objDbResult->FetchArray()) {
echo $row['type']. " = " .$row['total'];
echo "<br><strong>";
I want to avoid writing the sql query each time, instead want to use this query and define my order by value somewhere. How can I do this?

Answer 1

I hope this helps you :)
function getQuery( $order_by_string )
{
return $query = 'Your query .... ORDER BY '.$order_by_string
}
$query = getQuery("something");

Answer 2

You should consider making a query builder class, so you can create queries more freely.
Anyhow, to just set the group by, you can create the function getQueryGroupBy($query,$type) as following:
function getQueryGroupBy($query, $type) {
return $query . 'GROUP BY ' . $type;
}
Your query would be:
$strQuery = "SELECT
category.short_description AS category,
asset.asset_code AS code,
asset_model_number.short_description AS model,
asset_custom_field_helper.cfv_1 AS mnfserial,
asset_custom_field_helper.cfv_6 AS proctype,
asset_custom_field_helper.cfv_7 AS hdd,
asset_custom_field_helper.cfv_8 AS type,
asset_custom_field_helper.cfv_9 AS cond,
asset_custom_field_helper.cfv_10 AS drive,
asset_custom_field_helper.cfv_12 AS os,
asset_custom_field_helper.cfv_13 AS cpu,
asset_custom_field_helper.cfv_14 AS ram,
COUNT(*) AS total
FROM
asset_transaction
LEFT JOIN asset
ON asset_transaction.asset_id = asset.asset_id
LEFT JOIN asset_model
ON asset.asset_model_id = asset_model.asset_model_id
LEFT JOIN asset_model_number
ON asset.asset_model_number_id = asset_model_number.asset_model_number_id
LEFT JOIN asset_custom_field_helper
ON asset.asset_id = asset_custom_field_helper.asset_id
LEFT JOIN user_account
ON asset.created_by = user_account.user_account_id
LEFT JOIN category
ON asset_model.category_id = category.category_id
WHERE
asset_transaction.transaction_id = ($txnid)";
You would then call the function like this:
$query = $this->setGroupBy($strQuery, 'model');
or
$query = $this->setGroupBy($strQuery, 'type');
EDIT
So you would probably end up with this:
$baseQuery =
"SELECT
category.short_description AS category,
asset.asset_code AS code,
asset_model_number.short_description AS model,
asset_custom_field_helper.cfv_1 AS mnfserial,
asset_custom_field_helper.cfv_6 AS proctype,
asset_custom_field_helper.cfv_7 AS hdd,
asset_custom_field_helper.cfv_8 AS type,
asset_custom_field_helper.cfv_9 AS cond,
asset_custom_field_helper.cfv_10 AS drive,
asset_custom_field_helper.cfv_12 AS os,
asset_custom_field_helper.cfv_13 AS cpu,
asset_custom_field_helper.cfv_14 AS ram,
COUNT(*) AS total
FROM
asset_transaction
LEFT JOIN asset
ON asset_transaction.asset_id = asset.asset_id
LEFT JOIN asset_model
ON asset.asset_model_id = asset_model.asset_model_id
LEFT JOIN asset_model_number
ON asset.asset_model_number_id = asset_model_number.asset_model_number_id
LEFT JOIN asset_custom_field_helper
ON asset.asset_id = asset_custom_field_helper.asset_id
LEFT JOIN user_account
ON asset.created_by = user_account.user_account_id
LEFT JOIN category
ON asset_model.category_id = category.category_id
WHERE asset_transaction.transaction_id = ($txnid)";
$objDatabase = QApplication::$Database[1];
// Create the query
$modelQuery = getQueryGroupBy($baseQuery, 'model');
// Perform the Query
$objDbResultByModel = $objDatabase->Query($modelQuery);
echo "<h3>Total Model No<br></h3><strong>";
while ($mixRow = $objDbResultByModel->FetchArray()) {
echo $mixRow['model']. " = " .$mixRow['total'];
echo "<br><strong>";
}
// Create the query
$typeQuery = getQueryGroupBy($baseQuery, 'type');
// Perform the Query
$objDbResultByType = $objDatabase->Query($typeQuery);
echo "<h3>Total Products<br></h3><strong>";
echo "<br>";
while ($row = $objDbResultByType->FetchArray()) {
echo $row['type']. " = " .$row['total'];
echo "<br><strong>";
}
function getQueryGroupBy($query, $type) {
return $query . ' GROUP BY ' . $type;
}