+function add_material_cost($stock_id, $qty, $date_)
+{
+ $m_cost = 0;
+ $result = get_bom($stock_id);
+ while ($bom_item = db_fetch($result))
+ {
+ $standard_cost = get_standard_cost($bom_item['component']);
+ $m_cost += ($bom_item['quantity'] * $standard_cost);
+ }
+ //$dec = user_price_dec();
+ //price_decimal_format($m_cost, $dec);
+ $sql = "SELECT material_cost FROM ".TB_PREF."stock_master WHERE stock_id = "
+ .db_escape($stock_id);
+ $result = db_query($sql);
+ $myrow = db_fetch($result);
+ $material_cost = $myrow['material_cost'];
+ //$qoh = get_qoh_on_date($stock_id, null, $date_);
+ $qoh = get_qoh_on_date($stock_id);
+ if ($qoh < 0)
+ $qoh = 0;
+ if ($qoh + $qty != 0)
+ $material_cost = ($qoh * $material_cost + $qty * $m_cost) / ($qoh + $qty);
+ //$material_cost = round2($material_cost, $dec);
+ $sql = "UPDATE ".TB_PREF."stock_master SET material_cost=$material_cost
+ WHERE stock_id=".db_escape($stock_id);
+ db_query($sql,"The cost details for the inventory item could not be updated");
+}
+
+function add_overhead_cost($stock_id, $qty, $date_, $costs)
+{
+ //$dec = user_price_dec();
+ //price_decimal_format($costs, $dec);
+ if ($qty != 0)
+ $costs /= $qty;
+ $sql = "SELECT overhead_cost FROM ".TB_PREF."stock_master WHERE stock_id = "
+ .db_escape($stock_id);
+ $result = db_query($sql);
+ $myrow = db_fetch($result);
+ $overhead_cost = $myrow['overhead_cost'];
+ //$qoh = get_qoh_on_date($stock_id, null, $date_);
+ $qoh = get_qoh_on_date($stock_id);
+ if ($qoh < 0)
+ $qoh = 0;
+ if ($qoh + $qty != 0)
+ $overhead_cost = ($qoh * $overhead_cost + $qty * $costs) / ($qoh + $qty);
+ //$overhead_cost = round2($overhead_cost, $dec);
+ $sql = "UPDATE ".TB_PREF."stock_master SET overhead_cost=".db_escape($overhead_cost)."
+ WHERE stock_id=".db_escape($stock_id);
+ db_query($sql,"The cost details for the inventory item could not be updated");
+}
+
+function add_labour_cost($stock_id, $qty, $date_, $costs)
+{
+ //$dec = user_price_dec();
+ //price_decimal_format($costs, $dec);
+ if ($qty != 0)
+ $costs /= $qty;
+ $sql = "SELECT labour_cost FROM ".TB_PREF."stock_master WHERE stock_id = "
+ .db_escape($stock_id);
+ $result = db_query($sql);
+ $myrow = db_fetch($result);
+ $labour_cost = $myrow['labour_cost'];
+ //$qoh = get_qoh_on_date($stock_id, null, $date_);
+ $qoh = get_qoh_on_date($stock_id);
+ if ($qoh < 0)
+ $qoh = 0;
+ if ($qoh + $qty != 0)
+ $labour_cost = ($qoh * $labour_cost + $qty * $costs) / ($qoh + $qty);
+ //$labour_cost = round2($labour_cost, $dec);
+ $sql = "UPDATE ".TB_PREF."stock_master SET labour_cost=".db_escape($labour_cost)."
+ WHERE stock_id=".db_escape($stock_id);
+ db_query($sql,"The cost details for the inventory item could not be updated");
+}
+
+function add_issue_cost($stock_id, $qty, $date_, $costs)