+ $to = date2sql($to);
+ $sql ="SET @q = 0";
+ db_query($sql);
+ $sql = "SET @flag = 0";
+ db_query($sql);
+ $sql = "SELECT SUM(qty), @q:= @q + qty, IF(@q < 0 AND @flag=0, @flag:=1,@flag:=0), IF(@q < 0 AND @flag=1, tran_date,'') AS begin_date
+ FROM ".TB_PREF."stock_moves
+ WHERE stock_id=".db_escape($stock_id)." AND tran_date<='$to'
+ AND qty <> 0
+ GROUP BY stock_id ORDER BY tran_date";
+
+ $result = db_query($sql, "The dstock moves could not be retrieved");
+ $row = db_fetch_row($result);
+ return $row[3];
+}
+
+//-------------------------------------------------------------------
+
+function get_already_delivered($stock_id, $location, $trans_no)
+{
+ $sql = "SELECT qty
+ FROM ".TB_PREF."stock_moves
+ WHERE stock_id = ".db_escape($stock_id)."
+ AND loc_code = ".db_escape($location)."
+ AND type=".ST_CUSTDELIVERY." AND trans_no=".db_escape($trans_no);
+ $result = db_query($sql, "Could not get stock moves");
+ $row = db_fetch_row($result);
+ return is_array($row) ? $row[0] : false;
+}
+/*
+ Returns start move_id in latest negative status period for $stock_id
+ FIXME: $to ?
+*/
+function last_negative_stock_trans_id($stock_id, $to)
+{
+ $sql = "SELECT * from ".TB_PREF."stock_moves
+ WHERE stock_id=".db_escape($stock_id)."
+ AND qty <> 0 order by trans_id asc";
+
+ $result = db_query($sql, "The query on stock moves failed.");
+
+ $qty = 0;
+ $flag = 0;
+ $negative_trans_id = -1;
+
+ while ($myrow = db_fetch($result))
+ {
+ $qty += $myrow['qty'];
+ if ($qty < 0 && $flag == 0)
+ {
+ $flag = 1;
+ $negative_trans_id = $myrow['trans_id'];
+ }
+ if ($qty >= 0)
+ $flag = 0;
+ }
+
+ if ($flag == 1)
+ return $negative_trans_id;
+ else
+ return false;
+}
+
+//-------------------------------------------------------------------
+
+function get_deliveries_between($stock_id, $from, $to)
+{
+ $from = date2sql($from);
+ $to = date2sql($to);
+ $sql = "SELECT SUM(-qty), SUM(-qty*standard_cost) FROM ".TB_PREF."stock_moves
+ WHERE type=".ST_CUSTDELIVERY." AND stock_id=".db_escape($stock_id)." AND
+ tran_date>='$from' AND tran_date<='$to' GROUP BY stock_id";
+
+ $result = db_query($sql, "The deliveries could not be updated");
+ return db_fetch_row($result);
+}
+
+/*
+ Returns quantity and total cost of $stock_id sales, entered after record with $move_id
+*/
+function get_deliveries_from_trans($stock_id, $move_id)
+{
+ // -ve qty is delivery either by ST_CUSTDELIVERY or inventory adjustment
+ //Price for GRN and SUPPCREDIT and std_cost for other trans_types
+ $sql = "SELECT SUM(-qty), SUM(-qty*IF(type=".ST_SUPPRECEIVE." OR type=".ST_SUPPCREDIT.", price, standard_cost))
+ FROM ".TB_PREF."stock_moves
+ WHERE stock_id=".db_escape($stock_id)." AND qty < 0 AND
+ trans_id>='$move_id' GROUP BY stock_id";
+ $result = db_query($sql, "The deliveries could not be updated");
+ $row = db_fetch_row($result);
+
+ $sql = "SELECT IF(type=".ST_SUPPRECEIVE." OR type=".ST_SUPPCREDIT.", price, standard_cost)
+ FROM ".TB_PREF."stock_moves
+ WHERE stock_id=".db_escape($stock_id)
+ ." AND trans_id ='$move_id'";
+ $result = db_query($sql, "The deliveries could not be updated");
+ $cost = db_fetch_row($result);
+
+ // Adjusting QOH valuation
+ $sql = "SELECT SUM(qty)
+ FROM ".TB_PREF."stock_moves
+ WHERE stock_id=".db_escape($stock_id)." AND
+ trans_id<'$move_id' GROUP BY stock_id";
+ $result = db_query($sql, "The deliveries could not be updated");
+ $qoh = db_fetch_row($result);
+
+ $qty = $row[0] - $qoh[0]; //QOH prior to -ve stock is subtracted
+ $final_cost = $row[1] - $qoh[0]*$cost[0];
+
+ return array($qty,$final_cost);
+}
+
+/*
+ Returns quantity and total cost of $stock_id purchases, entered after record with $move_id
+*/
+function get_purchases_from_trans($stock_id, $move_id)
+{
+ // Calculate All inward stock moves i.e. qty > 0
+ $sql = "SELECT SUM(qty), SUM(qty*standard_cost)
+ FROM ".TB_PREF."stock_moves
+ WHERE stock_id=".db_escape($stock_id)." AND qty > 0 AND
+ trans_id>'$move_id' GROUP BY stock_id";
+ $result = db_query($sql, "Could not get get_purchases_from_trans");
+ $row = db_fetch_row($result);
+
+ return $row;
+}
+
+//-------------------------------------------------------------------
+/*
+ This routine fixes stock and COGS balances for all $stock_id sales made during negative inventory status.
+ This is called when delivery is received causing inventory status to be positive again.
+*/
+function adjust_deliveries($stock_id, $material_cost, $to)
+{
+ global $Refs;
+
+ if (!is_inventory_item($stock_id))
+ return;
+
+ $move_id = last_negative_stock_trans_id($stock_id, $to);
+ if ($move_id == false || $move_id == -1)
+ return;
+
+ $row = get_deliveries_from_trans($stock_id, $move_id);
+
+ if ($row == false)
+ return;
+ $old_sales_cost = $row[1];
+ $new_sales_cost = $row[0] * $material_cost;
+ $sales_diff = $new_sales_cost - $old_sales_cost;
+
+ $row = get_purchases_from_trans($stock_id, $move_id);
+ $purchase_diff = 0;
+ $old_purchase_cost = $new_purchase_cost = 0;
+ if ($row != false)
+ {
+ $old_purchase_cost = $row[1];
+ $new_purchase_cost = $row[0] * $material_cost;
+ $purchase_diff = $new_purchase_cost - $old_purchase_cost;
+ }
+
+ $diff = $sales_diff - $purchase_diff;
+
+ if ($diff != 0)
+ {
+ $stock_gl_code = get_stock_gl_code($stock_id);
+
+ $dec = user_price_dec();
+ $old_cost = -round2($old_sales_cost-$old_purchase_cost,$dec);
+ $new_cost = -round2($new_sales_cost-$new_purchase_cost,$dec);
+
+ $cart = new items_cart(ST_COSTUPDATE);
+ $cart->tran_date = $cart->doc_date = $cart->event_date = $to;
+ if (!is_date_in_fiscalyear($cart->tran_date))
+ $cart->tran_date = end_fiscalyear();
+ $cart->reference = $Refs->get_next(ST_COSTUPDATE, null, $cart->tran_date, $to);
+
+ $cart->memo_ = _("Cost was ") . $old_cost. _(" changed to ") . $new_cost . _(" for item ")."'$stock_id'";
+
+ $cart->add_gl_item($stock_gl_code["cogs_account"], $stock_gl_code["dimension_id"], $stock_gl_code["dimension2_id"], $diff);
+ $cart->add_gl_item($stock_gl_code["inventory_account"], 0, 0, -$diff);
+
+ write_journal_entries($cart);
+ }
+}