purchasing/includes/db/grn_db.inc

   1 <?php
   2 /**********************************************************************
   3     Copyright (C) FrontAccounting, LLC.
   4         Released under the terms of the GNU General Public License, GPL,
   5         as published by the Free Software Foundation, either version 3
   6         of the License, or (at your option) any later version.
   7     This program is distributed in the hope that it will be useful,
   8     but WITHOUT ANY WARRANTY; without even the implied warranty of
   9     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
  10     See the License here <http://www.gnu.org/licenses/gpl-3.0.html>.
  11 ***********************************************************************/
  12 /*
  13     Update average inventory item cost.
  14 */
  15 function update_average_material_cost($supplier, $stock_id, $price, $qty, $date, $adj_only=false)
  16 {
  17         // probably this function should be optimized
  18         // passing transaction cart as argument. This would
  19         // save a couple of db calls like get_supplier()
  20
  21         $supp = get_supplier($supplier);
  22         if ($supplier != null)
  23                 $currency = $supp['curr_code'];
  24         else
  25                 $currency = null;
  26
  27         if ($supp['tax_included'])
  28                 $price = get_tax_free_price_for_item(ST_SUPPINVOICE, // ?
  29                 $stock_id, $price, $supp['tax_group_id'],
  30                         $supp['tax_included']);
  31
  32         if ($currency != null)
  33         {
  34                 $ex_rate = get_exchange_rate_to_home_currency($currency, $date);
  35                 $price_in_home_currency = $price / $ex_rate;
  36         }
  37         else
  38                 $price_in_home_currency = $price;
  39
  40         $price_in_home_currency_ = $price_in_home_currency;
  41
  42         // Handle if inventory will become negative
  43     // Skip negative inventory adjustment for case of adjust_only
  44     if (is_inventory_item($stock_id) && !$adj_only)
  45         handle_negative_inventory($stock_id, $qty, $price_in_home_currency, $date);
  46
  47         $item = get_item($stock_id);
  48         $avg_cost =  $item['material_cost'];
  49
  50         $qoh = get_qoh_on_date($stock_id);
  51
  52         $cost_adjust = false;
  53
  54         if ($adj_only)
  55         {
  56                 if ($qoh > 0)
  57                         $avg_cost = ($qoh * $avg_cost + $qty * $price_in_home_currency) / $qoh;
  58         }
  59         else
  60         {
  61                 if ($qoh < 0)
  62                 {
  63                         if ($qoh + $qty >= 0)
  64                                 $cost_adjust = true;
  65                         $qoh = 0;
  66                 }
  67                 if ($qoh + $qty > 0)
  68                         $avg_cost = ($qoh * $avg_cost + $qty * $price_in_home_currency) / ($qoh + $qty);
  69         }
  70
  71         if ($cost_adjust) // Material_cost replaced with price
  72                 adjust_deliveries($stock_id, $price_in_home_currency_, $date);
  73
  74         $sql = "UPDATE ".TB_PREF."stock_master SET material_cost=".db_escape($avg_cost)."
  75                 WHERE stock_id=".db_escape($stock_id);
  76
  77         db_query($sql,"The cost details for the inventory item could not be updated");
  78         return $avg_cost;
  79 }
  80
  81 //-------------------------------------------------------------------------------------------------------------
  82 //
  83 //      Add or update GRN transaction.
  84 //
  85 function write_grn(&$po)
  86 {
  87         global $Refs;
  88
  89         $date_ = $po->tran_date;
  90         $grn = $po->grn_id;
  91
  92         begin_transaction();
  93         hook_db_prewrite($po, ST_SUPPRECEIVE);
  94
  95         if (!is_company_currency($po->curr_code))
  96         {
  97                 if (!$po->ex_rate)
  98                         $po->ex_rate = get_date_exchange_rate($po->curr_code, $date_);
  99                 else
 100                         add_new_exchange_rate($po->curr_code, $date_, $po->ex_rate);
 101         } else
 102                 $po->ex_rate = 1;
 103
 104         if(!$grn)
 105                 $grn = add_grn_batch($po->order_no, $po->supplier_id, $po->reference, $po->Location, $date_, $po->ex_rate);
 106         else {
 107
 108                 update_grn_batch($grn, $po->reference, $po->Location, $date_);
 109
 110                 void_gl_trans(ST_SUPPRECEIVE, $grn, true);
 111                 void_stock_move(ST_SUPPRECEIVE, $grn);
 112                 void_trans_tax_details(ST_SUPPRECEIVE, $grn);
 113                 delete_comments(ST_SUPPRECEIVE, $grn);
 114         }
 115
 116     $clearing_act = get_company_pref('grn_clearing_act');
 117     $total = 0;
 118         foreach ($po->line_items as $line_no => $order_line)
 119         {
 120                 if ($order_line->quantity != 0)
 121                 {
 122                         $stock_gl_code = get_stock_gl_code($order_line->stock_id);
 123
 124                         /*Update sales_order_details for the new quantity received and the standard cost used for postings to GL
 125                           and recorded in the stock movements for FIFO/LIFO stocks valuations*/
 126                         //------------------- update average material cost and clearing account --------------------------------
 127                         if (is_inventory_item($order_line->stock_id))
 128                         {
 129                                 if ($clearing_act)
 130                                         $total += add_gl_trans_supplier(ST_SUPPRECEIVE, $grn, $date_, $stock_gl_code["inventory_account"],
 131                                                 $stock_gl_code['dimension_id'], $stock_gl_code['dimension2_id'],
 132                                             $order_line->taxfree_charge_value($po), $po->supplier_id, 0, $order_line->stock_id);
 133                                 update_average_material_cost($po->supplier_id, $order_line->stock_id, $order_line->price,
 134                                         $order_line->quantity, $date_);
 135                         }
 136                         //------------------------------------------------------------------------------------------------------
 137                         if ($order_line->qty_received == 0)
 138                         {
 139                                 /*This must be the first receipt of goods against this line */
 140                                 /*Need to get the standard cost as it is now so we can process GL jorunals later*/
 141                                 $order_line->unit_cost = get_unit_cost($order_line->stock_id);
 142                         }
 143                         // Update the purchase data table
 144                         add_or_update_purchase_data($po->supplier_id, $order_line->stock_id, $order_line->price,
 145                                 $order_line->item_description);
 146
 147                         /*Need to insert a grn item */ // also need to check for over-receive.(within allowance)
 148                         if ($order_line->quantity + $order_line->qty_received > $order_line->qty_ordered)
 149                                 $order_line->qty_ordered = $order_line->quantity + $order_line->qty_received;
 150
 151                         $grn_item = write_grn_item($grn, $order_line->po_detail_rec,
 152                                 $order_line->stock_id, $order_line->item_description, $order_line->quantity, $order_line->grn_item_id);
 153
 154                         $po->line_items[$line_no]->grn_item_id = $grn_item;
 155                         /* Update location stock records - NB  a po cannot be entered for a service/kit parts done automatically */
 156                         add_stock_move(ST_SUPPRECEIVE, $order_line->stock_id, $grn, $po->Location, $date_, "",
 157                                 $order_line->quantity, $order_line->unit_cost, $order_line->taxfree_charge_value($po)/$order_line->quantity);
 158
 159                 } /*quantity received is != 0 */
 160         } /*end of order_line loop */
 161
 162         if ($clearing_act && $total != 0.0) {
 163                 $accs = get_supplier_accounts($po->supplier_id);
 164                 $total += add_gl_trans_supplier(ST_SUPPRECEIVE, $grn, $date_, $clearing_act,
 165                         $accs['dimension_id'], $accs['dimension2_id'], -$total, null);
 166         }
 167         $Refs->save(ST_SUPPRECEIVE, $grn, $po->reference);
 168
 169         add_audit_trail(ST_SUPPRECEIVE, $grn, $date_);
 170
 171         $po->trans_no = $grn;
 172         hook_db_postwrite($po, ST_SUPPRECEIVE);
 173         commit_transaction();
 174
 175         return $grn;
 176 }
 177
 178 //----------------------------------------------------------------------------------------
 179
 180 function add_grn_batch($po_number, $supplier_id, $reference, $location, $date_, $rate)
 181 {
 182         $date = date2sql($date_);
 183
 184         $sql = "INSERT INTO ".TB_PREF."grn_batch (purch_order_no, delivery_date, supplier_id, reference, loc_code, rate)
 185                         VALUES (".db_escape($po_number).", ".db_escape($date).", "
 186                         .db_escape($supplier_id).", ".db_escape($reference).", ".db_escape($location).", ".db_escape($rate).")";
 187
 188         db_query($sql, "A grn batch record could not be inserted.");
 189
 190         return db_insert_id();
 191 }
 192
 193 //----------------------------------------------------------------------------------------
 194
 195 function update_grn_batch($grn, $reference, $location, $date_)
 196 {
 197         $date = date2sql($date_);
 198
 199         $sql = "UPDATE ".TB_PREF."grn_batch SET
 200                         delivery_date=".db_escape($date).",
 201                         reference=".db_escape($reference).",
 202                         loc_code=".db_escape($location)."
 203                         WHERE id=".db_escape($grn);
 204
 205         db_query($sql, "A grn batch record could not be updated.");
 206
 207         return db_insert_id();
 208 }
 209 //-------------------------------------------------------------------------------------------------------------
 210
 211 function write_grn_item($grn_batch_id, $po_detail_item, $item_code, $description, $quantity_received, $grn_item_id)
 212 {
 213         if ($grn_item_id)
 214                 $sql = "UPDATE ".TB_PREF."grn_items SET qty_recd=".db_escape($quantity_received)
 215                         ." WHERE id=".db_escape($grn_item_id);
 216         else
 217                 $sql = "INSERT INTO ".TB_PREF."grn_items (grn_batch_id, po_detail_item, item_code, description, qty_recd)
 218                         VALUES (".db_escape($grn_batch_id).", "
 219                         .db_escape($po_detail_item).", ".db_escape($item_code).", ".db_escape($description)
 220                         .", ".db_escape($quantity_received).")";
 221
 222         db_query($sql, "A GRN detail item could not be stored.");
 223
 224         $sql = "UPDATE ".TB_PREF."purch_order_details po,
 225                         (SELECT SUM(qty_recd) received FROM ".TB_PREF."grn_items grn WHERE po_detail_item=".db_escape($po_detail_item).") grn
 226         SET po.quantity_received = grn.received
 227         WHERE po_detail_item = ".db_escape($po_detail_item);
 228         db_query($sql, "a purchase order details record could not be updated. This receipt of goods has not been processed ");
 229
 230         return db_insert_id();
 231 }
 232
 233 //----------------------------------------------------------------------------------------
 234 function get_grn_batch_from_item($item)
 235 {
 236         $sql = "SELECT grn_batch_id FROM ".TB_PREF."grn_items WHERE id=".db_escape($item);
 237         $result = db_query($sql, "Could not retreive GRN batch id");
 238         $row = db_fetch_row($result);
 239         return $row[0];
 240 }
 241
 242 function get_grn_batch($grn)
 243 {
 244         $sql = "SELECT * FROM ".TB_PREF."grn_batch WHERE id=".db_escape($grn);
 245         $result = db_query($sql, "Could not retreive GRN batch id");
 246         return db_fetch($result);
 247 }
 248
 249 function set_grn_item_credited(&$entered_grn, $supplier, $transno, $date)
 250 {
 251         $mcost = update_average_material_cost($supplier, $entered_grn->item_code,
 252                 $entered_grn->chg_price, $entered_grn->this_quantity_inv, $date);
 253
 254         $sql = "SELECT grn.*, item.*
 255         FROM ".TB_PREF."grn_batch grn,"
 256                 .TB_PREF."grn_items item
 257         WHERE item.grn_batch_id=grn.id
 258                 AND item.id=".db_escape($entered_grn->id)."
 259         AND item.item_code=".db_escape($entered_grn->item_code);
 260
 261         $result = db_query($sql, "Could not retreive GRNS");
 262         $myrow = db_fetch($result);
 263
 264         $sql = "UPDATE ".TB_PREF."purch_order_details
 265         SET quantity_received = quantity_received + "
 266                 .db_escape($entered_grn->this_quantity_inv).",
 267         quantity_ordered = quantity_ordered + "
 268         .db_escape($entered_grn->this_quantity_inv).",
 269         qty_invoiced = qty_invoiced + ".db_escape($entered_grn->this_quantity_inv).",
 270         std_cost_unit=".db_escape($mcost).",
 271         act_price=".db_escape($entered_grn->chg_price)."
 272         WHERE po_detail_item = ".$myrow["po_detail_item"];
 273         db_query($sql, "a purchase order details record could not be updated. This receipt of goods has not been processed ");
 274
 275         //$sql = "UPDATE ".TB_PREF."grn_items SET qty_recd=0, quantity_inv=0 WHERE id=$entered_grn->id";
 276         $sql = "UPDATE ".TB_PREF."grn_items SET qty_recd=qty_recd+".db_escape($entered_grn->this_quantity_inv)
 277         .",quantity_inv=quantity_inv+".db_escape($entered_grn->this_quantity_inv)
 278         ." WHERE id=".db_escape($entered_grn->id);
 279         db_query($sql);
 280
 281     add_stock_move(ST_SUPPCREDIT, $entered_grn->item_code, $transno, $myrow['loc_code'], $date, "",
 282         $entered_grn->this_quantity_inv, $mcost, $entered_grn->chg_price);
 283 }
 284
 285 function get_grn_items($grn_batch_id=0, $supplier_id="", $outstanding_only=false,
 286         $is_invoiced_only=false, $invoice_no=0, $begin="", $end="")
 287 {
 288     $sql = "SELECT grn.*, grn_item.*, po_item.delivery_date as req_del_date,
 289                 grn_item.quantity_inv".($invoice_no ? "-invoice_item.quantity" : '')."  quantity_inv,
 290         po_item.unit_price,
 291         po_item.act_price,
 292         po_item.quantity_ordered,
 293         po_item.quantity_received,
 294         po_item.std_cost_unit, units
 295         FROM    ".TB_PREF."grn_batch grn"
 296                                 ." INNER JOIN ".TB_PREF."grn_items grn_item ON grn_item.grn_batch_id=grn.id"
 297                         ." INNER JOIN ".TB_PREF."purch_order_details po_item ON grn_item.po_detail_item=po_item.po_detail_item"
 298                         ." INNER JOIN ".TB_PREF."stock_master stock_item ON stock_item.stock_id=grn_item.item_code";
 299
 300     if ($invoice_no != 0) {
 301         $sql .= " LEFT JOIN ".TB_PREF."supp_invoice_items invoice_item ON ";
 302
 303                 $inv_cond = "invoice_item.supp_trans_type=".ST_SUPPINVOICE." AND invoice_item.supp_trans_no ";
 304                 if (is_array($invoice_no))
 305                         $inv_cond .= " IN (".implode(',' , $invoice_no) . ")";
 306                 else
 307                         $inv_cond .= " = $invoice_no";
 308                 $sql .= "($inv_cond) AND grn_item.id=invoice_item.grn_item_id";
 309         }
 310
 311     $sql .= " WHERE grn_item.qty_recd != 0";
 312
 313         if ($outstanding_only)
 314         $sql .= " AND (".($invoice_no ? "$inv_cond OR ":'')."grn_item.qty_recd - grn_item.quantity_inv > 0)";
 315
 316         $sql .= " AND stock_item.stock_id=grn_item.item_code ";
 317
 318         if ($begin != "")
 319                 $sql .= " AND grn.delivery_date>='".date2sql($begin)."'";
 320         if ($end != "")
 321                 $sql .= " AND grn.delivery_date<='".date2sql($end)."'";
 322         if ($grn_batch_id != 0)
 323                 $sql .= " AND grn.id=".db_escape($grn_batch_id)
 324                         ." AND grn_item.grn_batch_id=".db_escape($grn_batch_id);
 325
 326         if ($is_invoiced_only)
 327                 $sql .= " AND grn_item.quantity_inv > 0";
 328
 329         if ($supplier_id != "")
 330                 $sql .= " AND grn.supplier_id =".db_escape($supplier_id);
 331
 332         $sql .= " ORDER BY grn.delivery_date, grn.id, grn_item.id";
 333
 334         return db_query($sql, "Could not retreive GRNS");
 335 }
 336
 337 //----------------------------------------------------------------------------------------
 338
 339 // get the details for a given grn item
 340
 341 function get_grn_item_detail($grn_item_no)
 342 {
 343         $sql = "SELECT grn.*, po.unit_price, grn.qty_recd - grn.quantity_inv AS QtyOstdg,
 344                 po.std_cost_unit
 345                 FROM ".TB_PREF."grn_items grn,"
 346                         .TB_PREF."purch_order_details po,"
 347                         .TB_PREF."stock_master item
 348                 WHERE grn.po_detail_item=po.po_detail_item
 349                         AND item.stock_id=grn.item_code
 350                         AND grn.id=".db_escape($grn_item_no);
 351
 352         $result = db_query($sql, "could not retreive grn item details");
 353         return db_fetch($result);
 354 }
 355
 356 //----------------------------------------------------------------------------------------
 357
 358 function read_grn_items_to_order($grn_batch, &$order)
 359 {
 360         $result = get_grn_items($grn_batch);
 361
 362         if (db_num_rows($result) > 0)
 363         {
 364
 365                 while ($myrow = db_fetch_assoc($result))
 366                 {
 367                         if ($myrow['qty_recd'] == 0 && $myrow['quantity_inv'] == 0)
 368                                 continue; // We will not have empty credited rows.
 369                         if (is_null($myrow["units"]))
 370                         {
 371                                 $units = "";
 372                         }
 373                         else
 374                         {
 375                                 $units = $myrow["units"];
 376                         }
 377
 378                         $order->add_to_order($order->lines_on_order, $myrow["item_code"],
 379                                 $myrow["qty_recd"],$myrow["description"], $myrow["unit_price"],$units,
 380                                 sql2date($myrow["req_del_date"]), $myrow["quantity_inv"],
 381                                 $myrow["quantity_received"], $myrow["quantity_ordered"], $myrow["id"]);
 382
 383                         $order->line_items[$order->lines_on_order-1]->po_detail_rec = $myrow["po_detail_item"];
 384                 } /* line po from purchase order details */
 385         } //end of checks on returned data set
 386 }
 387
 388 //----------------------------------------------------------------------------------------
 389
 390 // read a grn into an order class
 391
 392 function read_grn($grn_batch, &$order)
 393 {
 394         $sql= "SELECT * FROM ".TB_PREF."grn_batch WHERE id=".db_escape($grn_batch);
 395
 396         $result = db_query($sql, "The grn sent is not valid");
 397
 398         $row = db_fetch($result);
 399         $po_number = $row["purch_order_no"];
 400         $order->ex_rate = $row["rate"];
 401
 402         $result = read_po_header($po_number, $order);
 403
 404         if ($result)
 405         {
 406
 407                 $order->trans_type = ST_SUPPRECEIVE;
 408                 $order->tran_date = sql2date($row["delivery_date"]);
 409                 $order->Location = $row["loc_code"];
 410                 $order->reference = $row["reference"];
 411                 $order->grn_id = $grn_batch;
 412
 413                 read_grn_items_to_order($grn_batch, $order);
 414         }
 415 }
 416
 417 //----------------------------------------------------------------------------------------------------------
 418
 419 // get the GRNs (batch info not details) for a given po number
 420
 421 function get_po_grns($po_number)
 422 {
 423     $sql = "SELECT * FROM ".TB_PREF."grn_batch WHERE purch_order_no=".db_escape($po_number);
 424
 425         return db_query($sql, "The grns for the po $po_number could not be retreived");
 426 }
 427
 428 //----------------------------------------------------------------------------------------------------------
 429
 430 function exists_grn($grn_batch)
 431 {
 432         $sql = "SELECT id FROM ".TB_PREF."grn_batch WHERE id=".db_escape($grn_batch);
 433         $result = db_query($sql, "Cannot retreive a grn");
 434
 435     return (db_num_rows($result) > 0);
 436 }
 437
 438 //----------------------------------------------------------------------------------------------------------
 439
 440 function exists_grn_on_invoices($grn_batch)
 441 {
 442         $sql = "SELECT inv.id
 443                 FROM ".TB_PREF."supp_invoice_items inv,"
 444                         .TB_PREF."grn_items grn
 445                 WHERE inv.grn_item_id=grn.id
 446                 AND quantity != 0
 447                 AND grn_batch_id=".db_escape($grn_batch);
 448         $result = db_query($sql, "Cannot query GRNs");
 449
 450     return (db_num_rows($result) > 0);
 451 }
 452
 453 //----------------------------------------------------------------------------------------------------------
 454
 455 function void_grn($grn_batch)
 456 {
 457         // if this grn is references on any invoices/credit notes, then it
 458         // can't be voided
 459         if (exists_grn_on_invoices($grn_batch))
 460                 return false;
 461
 462         begin_transaction();
 463         hook_db_prevoid(ST_SUPPRECEIVE, $grn_batch);
 464
 465         void_bank_trans(ST_SUPPRECEIVE, $grn_batch, true);
 466         void_gl_trans(ST_SUPPRECEIVE, $grn_batch, true);
 467
 468         // clear the quantities of the grn items in the POs and invoices
 469         $result = get_grn_items($grn_batch);
 470
 471     if (db_num_rows($result) > 0)
 472     {
 473
 474         while ($myrow = db_fetch($result))
 475         {
 476
 477                 $sql = "UPDATE ".TB_PREF."purch_order_details
 478                 SET quantity_received = quantity_received - " . $myrow["qty_recd"] . "
 479                 WHERE po_detail_item = " . $myrow["po_detail_item"];
 480
 481                 db_query($sql, "a purchase order details record could not be voided.");
 482         }
 483     }
 484
 485         // clear the quantities in the grn items
 486         $sql = "UPDATE ".TB_PREF."grn_items SET qty_recd=0, quantity_inv=0
 487                 WHERE grn_batch_id=".db_escape($grn_batch);
 488
 489         db_query($sql, "A grn detail item could not be voided.");
 490
 491     // clear the stock move items
 492     void_stock_move(ST_SUPPRECEIVE, $grn_batch);
 493
 494         commit_transaction();
 495
 496         return true;
 497 }
 498
 499 //----------------------------------------------------------------------------------------------------------
 500