<?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>.
+***********************************************************************/
function get_qoh_on_date($stock_id, $location=null, $date_=null)
{
- if ($date_ == null)
- $date_ = Today();
+ if ($date_ == null)
+ $date_ = Today();
- $date = date2sql($date_);
+ $date = date2sql($date_);
+ $sql = "SELECT SUM(qty)
+ FROM ".TB_PREF."stock_moves st
+ LEFT JOIN ".TB_PREF."voided v ON st.type=v.type AND st.trans_no=v.id
+ WHERE ISNULL(v.id)
+ AND stock_id=".db_escape($stock_id)."
+ AND tran_date <= '$date'";
- $sql = "SELECT SUM(qty) FROM ".TB_PREF."stock_moves
- WHERE stock_id='$stock_id'
- AND tran_date <= '$date'";
+ if ($location != null)
+ $sql .= " AND loc_code = ".db_escape($location);
- if ($location != null)
- $sql .= " AND loc_code = '$location'";
+ $result = db_query($sql, "QOH calculation failed");
- $result = db_query($sql, "QOH calulcation failed");
+ $myrow = db_fetch_row($result);
- $myrow = db_fetch_row($result);
+ $qoh = $myrow[0];
+ return $qoh ? $qoh : 0;
+}
- return $myrow[0];
+/**
+* Check whether change in stock on date would not cause negative qoh in stock history.
+* Returns null on success or max. available quantity with respective date otherwise.
+* Running balance is checked on daily basis only, as we do not control time of transaction.
+*
+* $delta_qty - tested change in stock qty at $date.
+* $date - check date; when set to null checks all the stock history.
+**/
+
+function check_negative_stock($stock_id, $delta_qty, $location=null, $date=null)
+{
+
+ if ($delta_qty >= 0)
+ return null; // qty increese is always safe
+
+ if (!isset($date))
+ $date = Today();
+
+ $date = date2sql($date);
+
+ // check stock status on date
+ $sql = "SELECT SUM(qty) qty, '$date' tran_date FROM ".TB_PREF."stock_moves
+ WHERE stock_id=".db_escape($stock_id)."
+ AND tran_date <= '$date'";
+
+ if ($location)
+ $sql .= " AND loc_code = ".db_escape($location);
+
+ $result = db_query($sql, "QOH calculation failed");
+ $qos = db_fetch_assoc($result);
+
+ // check also all stock changes after the date to avoid negative stock in future
+ $sql = TB_PREF."stock_moves WHERE stock_id=".db_escape($stock_id) . " AND tran_date > '$date'";
+
+ if ($location)
+ $sql .= " AND loc_code=".db_escape($location);
+
+ $rt = running_total_sql($sql, 'qty', 'tran_date');
+
+ $sql = "SELECT {$qos['qty']}+total qty, tran_date FROM ($rt) stock_status ORDER by total, tran_date";
+ $history = db_query($sql, 'cannot check stock history');
+ $min_qos = db_fetch($history);
+
+ if ($min_qos && ($min_qos['qty'] < $qos['qty']))
+ $qos = $min_qos;
+
+ return -$delta_qty > $qos['qty'] ? $qos : null;
}
//--------------------------------------------------------------------------------------
function get_item_edit_info($stock_id)
{
- $sql = "SELECT material_cost + labour_cost + overhead_cost AS standard_cost, units
- FROM ".TB_PREF."stock_master WHERE stock_id='$stock_id'";
+ $sql = "SELECT item.material_cost, item.units, unit.decimals
+ FROM ".TB_PREF."stock_master item,"
+ .TB_PREF."item_units unit
+ WHERE stock_id=".db_escape($stock_id)
+ ." AND item.units=unit.abbr";
$result = db_query($sql, "The standard cost cannot be retrieved");
- return db_fetch($result);
+ $row = db_fetch($result);
+ if ($row['decimals'] == -1)
+ $row['decimals'] = user_qty_dec();
+ return $row;
}
//--------------------------------------------------------------------------------------
-function get_standard_cost($stock_id)
+function get_unit_cost($stock_id)
{
- $sql = "SELECT material_cost + labour_cost + overhead_cost AS std_cost
- FROM ".TB_PREF."stock_master WHERE stock_id='$stock_id'";
+ $sql = "SELECT material_cost
+ FROM ".TB_PREF."stock_master
+ WHERE stock_id=".db_escape($stock_id);
$result = db_query($sql, "The standard cost cannot be retrieved");
$myrow = db_fetch_row($result);
return $myrow[0];
}
+//--------------------------------------------------------------------------------------
+
+function get_purchase_cost($stock_id)
+{
+ $sql = "SELECT purchase_cost
+ FROM ".TB_PREF."stock_master
+ WHERE stock_id=".db_escape($stock_id);
+ $result = db_query($sql, "The purchase cost cannot be retrieved");
+
+ $myrow = db_fetch_row($result);
+
+ return $myrow[0];
+}
+
//--------------------------------------------------------------------------------------
function is_inventory_item($stock_id)
{
- $sql = "SELECT stock_id FROM ".TB_PREF."stock_master
- WHERE stock_id='$stock_id' AND mb_flag <> 'D'";
+ $sql = "SELECT stock_id FROM "
+ .TB_PREF."stock_master
+ WHERE stock_id=".db_escape($stock_id)." AND mb_flag <> 'D'";
$result = db_query($sql, "Cannot query is inventory item or not");
return db_num_rows($result) > 0;
//-------------------------------------------------------------------
-Function get_stock_gl_code($stock_id)
+function last_negative_stock_begin_date($stock_id, $to)
{
- /*Gets the GL Codes relevant to the item account */
+ $to = date2sql($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 $row[0];
+}
+/*
+ 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;
- $sql = "SELECT inventory_account, cogs_account,
- adjustment_account, sales_account, assembly_account, dimension_id, dimension2_id FROM
- ".TB_PREF."stock_master WHERE stock_id = '$stock_id'";
+ 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);
+ }
+}
+
+function get_stock_gl_code($stock_id)
+{
+ /*Gets the GL Codes relevant to the item account */
+ $sql = "SELECT mb_flag, inventory_account, cogs_account,
+ adjustment_account, sales_account, wip_account, dimension_id, dimension2_id FROM
+ ".TB_PREF."stock_master WHERE stock_id = ".db_escape($stock_id);
$get = db_query($sql,"retreive stock gl code");
return db_fetch($get);
}
+function get_purchase_value($stock_id)
+{
+ $sql = "SELECT purchase_cost FROM
+ ".TB_PREF."stock_master WHERE stock_id = ".db_escape($stock_id);
+
+ $result = db_query($sql,"retreive stock purchase price");
+ $row = db_fetch_row($result);
+ return $row[0];
+}
+
+function update_purchase_value($stock_id, $price)
+{
+ $price = round2($price, user_price_dec());
+ $sql = "UPDATE ".TB_PREF."stock_master SET purchase_cost=".db_escape($price)
+ ." WHERE stock_id=".db_escape($stock_id);
+ db_query($sql, "The stock master purchase_cost cannot be updated");
+}
+//-----------------------------------------------------------------------------------------
+
+function handle_negative_inventory($stock_id, $quantity, $standard_cost, $date_)
+{
+ //If negative adjustment result in negative or zero inventory
+ //then difference should be adjusted
+ $qoh = get_qoh_on_date($stock_id);
+
+ if ($qoh + $quantity <= 0 && $qoh > 0) //Positive inventory turning zero/negative
+ {
+ global $Refs;
+
+ $id = get_next_trans_no(ST_JOURNAL);
+ $ref = $Refs->get_next(ST_JOURNAL, null, $date_);
+ $diff = round($qoh*get_unit_cost($stock_id) + $quantity*$standard_cost, user_price_dec());
+
+ if ($diff != 0)
+ {
+ begin_transaction();
+ add_journal(ST_JOURNAL, $id, $diff, $date_, get_company_currency(), $ref);
+ $Refs->save(ST_JOURNAL, $id, $ref);
+
+ $stock_gl_code = get_stock_gl_code($stock_id);
+ $memo = _("Zero/negative inventory handling");
+ //Reverse the inventory effect if $qoh <=0
+ add_gl_trans_std_cost(ST_JOURNAL, $id, $date_,
+ $stock_gl_code["inventory_account"],
+ $stock_gl_code['dimension_id'], $stock_gl_code['dimension2_id'], $memo,
+ -$diff);
+ //GL Posting to inventory adjustment account
+ add_gl_trans_std_cost(ST_JOURNAL, $id, $date_,
+ $stock_gl_code["adjustment_account"],
+ $stock_gl_code['dimension_id'], $stock_gl_code['dimension2_id'], $memo,
+ $diff);
+
+ add_audit_trail(ST_JOURNAL, $id, $date_);
+ add_comments(ST_JOURNAL, $id, $date_, $memo);
+ $Refs->save(ST_JOURNAL, $id, $ref);
+ commit_transaction();
+ }
+ }
+}
+
//--------------------------------------------------------------------------------------
// $date_ - display / non-sql date
// $std_cost - in HOME currency
-// $show_or_hide - wil this move be visible in reports, etc
-// $price - in $person_id's currency
+// $price - in transaction currency
function add_stock_move($type, $stock_id, $trans_no, $location,
- $date_, $reference, $quantity, $std_cost, $person_id=null, $show_or_hide=1,
- $price=0, $discount_percent=0, $error_msg="")
+ $date_, $reference, $quantity, $std_cost, $price=0)
{
- // do not add a stock move if it's a non-inventory item
- if (!is_inventory_item($stock_id))
- return null;
-
$date = date2sql($date_);
$sql = "INSERT INTO ".TB_PREF."stock_moves (stock_id, trans_no, type, loc_code,
- tran_date, person_id, reference, qty, standard_cost, visible, price,
- discount_percent) VALUES ('$stock_id', $trans_no, $type,
- ".db_escape($location).", '$date', '$person_id', ".db_escape($reference).", $quantity, $std_cost,
- $show_or_hide, $price, $discount_percent)";
-
- if ($error_msg == "")
- $error_msg = "The stock movement record cannot be inserted";
+ tran_date, reference, qty, standard_cost, price) VALUES ("
+ .db_escape($stock_id).", ".db_escape($trans_no).", "
+ .db_escape($type).", ".db_escape($location).", '$date', "
+ .db_escape($reference).", "
+ .db_escape($quantity).", ".db_escape($std_cost)."," .db_escape($price).")";
- db_query($sql, $error_msg);
+ db_query($sql, "The stock movement record cannot be inserted");
return db_insert_id();
}
+function update_stock_move($type, $trans_no, $stock_id, $cost)
+{
+ $sql = "UPDATE ".TB_PREF."stock_moves SET standard_cost=".db_escape($cost)
+ ." WHERE type=".db_escape($type)
+ ." AND trans_no=".db_escape($trans_no)
+ ." AND stock_id=".db_escape($stock_id);
+ db_query($sql, "The stock movement standard_cost cannot be updated");
+}
+
//--------------------------------------------------------------------------------------------------
-function get_stock_moves($type, $type_no, $visible=false)
+function get_stock_moves($type, $type_no)
{
- $sql = "SELECT ".TB_PREF."stock_moves.*, ".TB_PREF."stock_master.description, ".TB_PREF."stock_master.units,
- ".TB_PREF."locations.location_name,
- ".TB_PREF."stock_master.material_cost + ".TB_PREF."stock_master.labour_cost + ".TB_PREF."stock_master.overhead_cost AS FixedStandardCost
- FROM ".TB_PREF."stock_moves,".TB_PREF."locations,".TB_PREF."stock_master
- WHERE ".TB_PREF."stock_moves.stock_id = ".TB_PREF."stock_master.stock_id
- AND ".TB_PREF."locations.loc_code=".TB_PREF."stock_moves.loc_code
- AND type=$type AND trans_no=$type_no ORDER BY trans_id";
- if ($visible)
- $sql .= " AND ".TB_PREF."stock_moves.visible=1";
+ $sql = "SELECT move.*, item.description, item.mb_flag, item.units, stock.location_name
+ FROM ".TB_PREF."stock_moves move,"
+ .TB_PREF."locations stock,"
+ .TB_PREF."stock_master item
+ WHERE move.stock_id = item.stock_id
+ AND stock.loc_code=move.loc_code
+ AND type=".db_escape($type)
+ ." AND trans_no=".db_escape($type_no)
+ ." ORDER BY trans_id";
return db_query($sql, "Could not get stock moves");
}
function void_stock_move($type, $type_no)
{
- $sql = "UPDATE ".TB_PREF."stock_moves SET qty=0, price=0, discount_percent=0,
- standard_cost=0 WHERE type=$type AND trans_no=$type_no";
-
- db_query($sql, "Could not void stock moves");
+ $sql = "SELECT move.*, supplier.supplier_id
+ FROM ".TB_PREF."stock_moves move
+ LEFT JOIN ".TB_PREF."supp_trans credit ON credit.trans_no=move.trans_no AND credit.type=move.type
+ LEFT JOIN ".TB_PREF."grn_batch grn ON grn.id=move.trans_no AND 25=move.type
+ LEFT JOIN ".TB_PREF."suppliers supplier ON IFNULL(grn.supplier_id, credit.supplier_id)=supplier.supplier_id
+ WHERE move.type=".db_escape($type)." AND move.trans_no=".db_escape($type_no);
+
+ $result = db_query($sql, "Could not void stock moves");
+ while ($row = db_fetch($result))
+ {
+ //Skip cost averaging of service items
+ if (is_inventory_item($row["stock_id"]))
+ {
+ // The cost has to be adjusted.
+ // Transaction rates are stored either as price or standard_cost depending on types
+ $types = array(ST_SUPPCREDIT, ST_SUPPRECEIVE);
+ if (in_array($type, $types))
+ $unit_cost = $row["price"];
+ else
+ $unit_cost = $row["standard_cost"];
+
+ update_average_material_cost($row["supplier_id"], $row["stock_id"],
+ $unit_cost, -$row["qty"], sql2date($row["tran_date"]));
+ }
+ }
+ $sql = "DELETE FROM ".TB_PREF."stock_moves
+ WHERE type=".db_escape($type)
+ ." AND trans_no=".db_escape($type_no);
+ db_query($sql, "The stock movement cannot be delated");
}
//--------------------------------------------------------------------------------------------------
function get_location_name($loc_code)
{
- $sql = "SELECT location_name FROM ".TB_PREF."locations WHERE loc_code='$loc_code'";
+ $sql = "SELECT location_name FROM ".TB_PREF."locations
+ WHERE loc_code=".db_escape($loc_code);
$result = db_query($sql, "could not retreive the location name for $loc_code");
display_db_error("could not retreive the location name for $loc_code", $sql, true);
}
-//--------------------------------------------------------------------------------------------------
+function get_mb_flag($stock_id)
+{
+ $sql = "SELECT mb_flag FROM ".TB_PREF."stock_master
+ WHERE stock_id = ".db_escape($stock_id);
+ $result = db_query($sql, "retreive mb_flag from item");
+
+ if (db_num_rows($result) == 0)
+ return -1;
+ $myrow = db_fetch_row($result);
+ return $myrow[0];
+}
-?>
\ No newline at end of file
projects / fa-stable.git / blobdiff