Inventory purchasing transaction based report

<?php
/**********************************************************************
    Copyright (C) FrontAccounting, LLC.
    Released under the terms of the GNU General Public License, GPL, 
    as published by the Free Software Foundation, either version 3 
    of the License, or (at your option) any later version.
    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  
    See the License here <http://www.gnu.org/licenses/gpl-3.0.html>.
***********************************************************************/ 
$page_security = 'SA_SUPPLIERANALYTIC';
// ----------------------------------------------------------------

// Creator:    Stefan Sotirov
// date_:    01-12-2017
// Title:    Inventory Purchasing - Transaction Based
//-----------------------------------------------------------------
// The report is based on rep306.php in FA 2.4.RC1 distribution and follows my own work needs.
// It might be useful for others too.
// All controls are the same as rep306
// If someone has free time, please make the installation part for others...
// There might be some minor errors after the cleaning, I haven't tested it in details
// ----------------------------------------------------------------
$path_to_root="..";

include_once($path_to_root . "/includes/session.inc");
include_once($path_to_root . "/includes/date_functions.inc");
include_once($path_to_root . "/includes/data_checks.inc");
include_once($path_to_root . "/includes/banking.inc");
include_once($path_to_root . "/gl/includes/gl_db.inc");
include_once($path_to_root . "/inventory/includes/db/items_category_db.inc");

//----------------------------------------------------------------------------------------------------

print_inventory_purchase();

function getTransactions($category, $location, $fromsupp, $item, $from, $to, $loc2)
{
    $from = date2sql($from);
    $to = date2sql($to);
    $sql = "SELECT item.category_id,
            category.description AS cat_description,
            item.stock_id,
            item.description, item.inactive,
            move.loc_code,
            supplier.supplier_id,
            supplier.supp_name AS supplier_name,
            move.trans_no,
            move.tran_date,
            move.qty AS qty,
            move.price
        FROM ".TB_PREF."stock_moves move
                LEFT JOIN ".TB_PREF."supp_trans credit ON credit.trans_no=move.trans_no AND credit.type=move.type
                LEFT JOIN ".TB_PREF."grn_batch grn ON grn.id=move.trans_no AND 25=move.type
                LEFT JOIN ".TB_PREF."suppliers supplier ON IFNULL(grn.supplier_id, credit.supplier_id)=supplier.supplier_id,
            ".TB_PREF."stock_master item,
            ".TB_PREF."stock_category category
        WHERE item.stock_id=move.stock_id        
        AND item.category_id=category.category_id        
        AND move.tran_date>='$from'
        AND move.tran_date<='$to'        
        AND (move.type=".ST_SUPPRECEIVE." OR move.type=".ST_SUPPCREDIT.")
        AND (item.mb_flag='B' OR item.mb_flag='M')";
        if ($category != 0)
            $sql .= " AND item.category_id = ".db_escape($category);
        if ($location != '')
            
            $sql .= " AND move.loc_code = ".db_escape($location);
            
        
        if ($fromsupp != '')
            $sql .= " AND supplier.supplier_id = ".db_escape($fromsupp); 
        if ($item != '')
            $sql .= " AND item.stock_id = ".db_escape($item);
        $sql .= " ORDER BY move.tran_date, move.trans_no,
            supplier.supp_name, item.category_id, item.stock_id";
        
    return db_query($sql,"No transactions were returned");

}

function get_supp_inv_reference($supplier_id, $stock_id, $date)
{
    $sql = "SELECT trans.supp_reference
        FROM ".TB_PREF."supp_trans trans,
            ".TB_PREF."supp_invoice_items line,
            ".TB_PREF."grn_batch batch,
            ".TB_PREF."grn_items item
        WHERE trans.type=line.supp_trans_type
        AND trans.trans_no=line.supp_trans_no
        AND item.grn_batch_id=batch.id
        AND item.item_code=line.stock_id
        AND trans.supplier_id=".db_escape($supplier_id)."
        AND line.stock_id=".db_escape($stock_id)."
        AND trans.tran_date=".db_escape($date);
    $result = db_query($sql,"No transactions were returned");
    $row = db_fetch_row($result);
    if (isset($row[0]))
        return $row[0];
    else
        return '';
}

//----------------------------------------------------------------------------------------------------

function print_inventory_purchase()
{
    global $path_to_root;

    $from = $_POST['PARAM_0'];
    $to = $_POST['PARAM_1'];
    $category = $_POST['PARAM_2'];
    $location = $_POST['PARAM_3'];
    $fromsupp = $_POST['PARAM_4'];
    $item = $_POST['PARAM_5'];
    $comments = $_POST['PARAM_6'];
    $orientation = $_POST['PARAM_7'];
    $destination = $_POST['PARAM_8'];
    if ($destination)
        include_once($path_to_root . "/reporting/includes/excel_report.inc");
    else
        include_once($path_to_root . "/reporting/includes/pdf_report.inc");

    $orientation = ($orientation ? 'L' : 'P');
    $dec = user_price_dec();
    

    if ($category == ALL_NUMERIC)
        $category = 0;
    if ($category == 0)
        $cat = _('All');
    else
        $cat = get_category_name($category);

    if ($location == '')
        $loc = _('All');
    else
        $loc = get_location_name($location);
    
    if ($fromsupp == '')
        $froms = _('All');
    else
        $froms = get_supplier_name($fromsupp);

    if ($item == '')
        $itm = _('All');
    else
        $itm = $item;

    $cols = array(0, 60, 180, 225, 275, 400, 420, 465,    520);
    
    $headers = array(_('Item'), _('Description'), _('Date'), _('#'), _('Supplier'), _('Qty'), _('Unit Price'), _('Location'));
    if ($fromsupp != '')
        $headers[4] = '';

    $aligns = array('left',    'left',    'left', 'left', 'left', 'left', 'right', 'right');

    $params =   array(     0 => $comments,
                        1 => array('text' => _('Period'),'from' => $from, 'to' => $to),
                        2 => array('text' => _('Category'), 'from' => $cat, 'to' => ''),
                        3 => array('text' => _('Location'), 'from' => $loc, 'to' => ''),
                        4 => array('text' => _('Supplier'), 'from' => $froms, 'to' => ''),
                        5 => array('text' => _('Item'), 'from' => $itm, 'to' => ''));

    $rep = new FrontReport(_('Inventory Purchasing - Transaction Based'), "InventoryPurchasingReport", user_pagesize(), 9, $orientation);
    if ($orientation == 'L')
        recalculate_cols($cols);

    $rep->Font();
    
    $rep->Info($params, $cols, $headers, $aligns);
   
    $rep->NewPage();
    $rep->TextCol(1, 5, _("Note: The lines separate the transactions."));
    $rep->NewLine();
    
    $res = getTransactions($category, $location, $fromsupp, $item, $from, $to);

hidden ($total = $total_supp = $grandtotal = 0.0); //left if someone needs them for own needs
hidden ($total_qty = 0.0);
    $catt = $stock_description = $stock_id = $supplier_name = $event = '';
    
    while ($trans=db_fetch($res))
    {
        
        
        if ($event != $trans['trans_no'])
        {
                $rep->Line($rep->row - 2);
        }
        $event = $trans['trans_no'];
        $stock_id = $trans['stock_id'];
        $stock_description = $trans['description'];
        $curr = get_supplier_currency($trans['supplier_id']);
        $rate = get_exchange_rate_from_home_currency($curr, sql2date($trans['tran_date']));
        $trans['price'] *= $rate;
        $rep->NewLine();
        $trans['supp_reference'] = get_supp_inv_reference($trans['supplier_id'], $trans['stock_id'], $trans['tran_date']);
        $rep->fontSize -= 2;
        
        if ($fromsupp == ALL_TEXT)
        {
            $rep->TextCol(0, 1, $trans['stock_id']);
            $rep->TextCol(1, 2, $trans['description']._("  ").($trans['inactive']==1 ? " ("._("Inactive").")" : ""), -1);
            $rep->TextCol(2, 3, sql2date($trans['tran_date']));
            $rep->TextCol(3, 4, $trans['supp_reference'].("  "));
            $rep->TextCol(4, 5, $trans['supplier_name']._("  "));
        }
        else
        {
            $rep->TextCol(0, 1, $trans['stock_id']);
            $rep->TextCol(1, 2, $trans['description'].($trans['inactive']==1 ? " ("._("Inactive").")" : ""), -1);
            $rep->TextCol(2, 3, sql2date($trans['tran_date']));
            $rep->TextCol(3, 4, $trans['supp_reference']);
        }    
        $rep->AmountCol(5, 6, $trans['qty'], get_qty_dec($trans['stock_id']));
        $rep->AmountCol(6, 7, $trans['price'], $dec);
        $amt = $trans['qty'] * $trans['price'];
        $rep->TextCol(7, 8, _("  ").get_location_name($trans['loc_code']));
        
        $rep->fontSize += 2;


//------------Left if somebody needs them for own needs
    //    $total += $amt; 
    //    $total_supp += $amt;
    //    $grandtotal += $amt;
    //    $total_qty += $trans['qty'];
        
        
        
        
    }
    
    $rep->Line($rep->row - 2);
    

    $rep->Line($rep->row-4);
    $rep->NewLine(2);
    $rep->fontSize += 2;
    $rep->TextCol(0, 3, _("Report End"));
    $rep->Line($rep->row -3);
    $rep->Line($rep->row -5);

    $rep->End();
}