Payment terms related functions moved to separate file, common function for calculati...
[fa-stable.git] / purchasing / includes / db / invoice_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 include_once($path_to_root . "/purchasing/includes/db/invoice_items_db.inc");
13 include_once($path_to_root . "/admin/db/attachments_db.inc");
14
15 //--------------------------------------------------------------------------------------------------
16
17 function read_supplier_details_to_trans(&$supp_trans, $supplier_id)
18 {
19         $sql = "SELECT supp.supp_name, supp.dimension_id, supp.dimension2_id, supp.tax_included,
20                 supp.tax_group_id, tax_group.name AS tax_group_name,
21                 supp.credit_limit - Sum((ov_amount + ov_gst + ov_discount)) as cur_credit,
22                 supp.curr_code,
23                 terms.*
24                 FROM ".TB_PREF."suppliers supp 
25                         LEFT JOIN ".TB_PREF."supp_trans trans ON supp.supplier_id = trans.supplier_id
26                         LEFT JOIN ".TB_PREF."payment_terms terms ON supp.payment_terms=terms.id
27                         LEFT JOIN ".TB_PREF."tax_groups tax_group ON supp.tax_group_id = tax_group.id
28                 WHERE supp.supplier_id = ".db_escape($supplier_id);
29
30         $result = db_query($sql, "The supplier record selected: " . $supplier_id . " cannot be retrieved");
31
32         $myrow = db_fetch($result);
33
34     if ($supp_trans->tran_date == "")
35     {
36                 $supp_trans->tran_date = Today();
37
38                 if (!is_date_in_fiscalyear($supp_trans->tran_date))
39                         $supp_trans->tran_date = end_fiscalyear();
40         }
41
42         $supp_trans->terms = array( 
43                 'description' => $myrow['terms'],
44                 'type' => $myrow['type'], 
45                 'days' => $myrow['days'],
46                 'early_discount' => $myrow['early_discount'],
47                 'early_days' => $myrow['early_days'],
48         );
49
50         if ($supp_trans->supplier_id != $supplier_id)
51             $supp_trans->due_date = get_payment_due_date($supp_trans->terms, $supp_trans->tran_date);
52
53     $supp_trans->supplier_id = $supplier_id;
54     $supp_trans->tax_included = $myrow['tax_included'];
55     $supp_trans->supplier_name = $myrow['supp_name'];
56         $supp_trans->credit = $myrow['cur_credit'];
57
58         $supp_trans->tax_description = $myrow['tax_group_name'];
59         $supp_trans->tax_group_id = $myrow['tax_group_id'];
60         $supp_trans->dimension = $myrow['dimension_id'];
61         $supp_trans->dimension2 = $myrow['dimension2_id'];
62         $supp_trans->currency = $myrow['curr_code'];
63  
64 }
65
66 //-------------------------------------------------------------------------------------------------
67 //      Updates invoiced quantity in PO and GRN line, and act_price in PO
68 //  Returns:
69 // if chg_price is set:  previous act_price, delivery date and unit_price from PO
70 //
71 function update_supp_received_items_for_invoice($id, $po_detail_item, $qty_invoiced, $chg_price=null)
72 {
73         if ($chg_price != null)
74         {
75                 $sql = "SELECT act_price, unit_price FROM ".TB_PREF."purch_order_details WHERE
76                         po_detail_item = ".db_escape($po_detail_item);
77                 $result = db_query($sql, "The old actual price of the purchase order line could not be retrieved");
78                 $row = db_fetch($result);
79                 $ret = $row['act_price'];
80
81                 $unit_price = $row['unit_price']; //Added by Rasmus
82
83                 $sql = "SELECT delivery_date 
84                         FROM ".TB_PREF."grn_batch grn,"
85                                 .TB_PREF."grn_items line
86                         WHERE
87                                 grn.id = line.grn_batch_id AND line.id=".db_escape($id);
88                 $result = db_query($sql, "The old delivery date from the received record cout not be retrieved");
89                 $row = db_fetch($result);
90                 $date = $row['delivery_date'];
91         }
92         else
93         {
94                 $ret = 0;
95                 $date = "";
96                 $unit_price = 0; // Added by Rasmus
97         }
98     $sql = "UPDATE ".TB_PREF."purch_order_details
99                 SET qty_invoiced = qty_invoiced + ".db_escape($qty_invoiced);
100
101         if ($chg_price != null)
102                 $sql .= " , act_price = ".db_escape($chg_price);
103
104         $sql .= " WHERE po_detail_item = ".db_escape($po_detail_item);
105     db_query($sql, "The quantity invoiced of the purchase order line could not be updated");
106
107     $sql = "UPDATE ".TB_PREF."grn_items
108         SET quantity_inv = quantity_inv + ".db_escape($qty_invoiced)."
109         WHERE id = ".db_escape($id);
110         db_query($sql, "The quantity invoiced off the items received record could not be updated");
111         return array($ret, $date, $unit_price);
112 }
113
114 function get_diff_in_home_currency($supplier, $old_date, $date, $amount1, $amount2)
115 {
116         $dec = user_price_dec();
117         price_decimal_format($amount2, $dec);
118         $currency = get_supplier_currency($supplier);
119         $ex_rate = get_exchange_rate_to_home_currency($currency, $old_date);
120         $amount1 = $amount1 / $ex_rate;
121         $ex_rate = get_exchange_rate_to_home_currency($currency, $date);
122         $amount2 = $amount2 / $ex_rate;
123         $diff = $amount2 - $amount1;
124         //return round2($diff, $dec);
125         return $diff;
126 }
127 //----------------------------------------------------------------------------------------
128
129 function add_supp_invoice(&$supp_trans)  //, $already_voided=false, $allocs=null)
130 {
131         global $Refs, $systypes_array;
132
133         $trans_no = $supp_trans->trans_no;
134         $trans_type = $supp_trans->trans_type;
135         $supplier = get_supplier($supp_trans->supplier_id);
136         $dec = user_price_dec();
137
138         begin_transaction(__FUNCTION__, func_get_args());
139         hook_db_prewrite($supp_trans, $trans_type);
140
141         if ($trans_no) {        // void old transaction
142 //       if (!$already_voided) {        // transaction is already voided in case of direct invoice edition, which is needed for proper inventory value handling
143                 $allocs = get_payments_for($trans_no, $trans_type, $supp_trans->supplier_id); // save allocations
144                 void_supp_invoice($trans_type, $trans_no, true);
145                 add_audit_trail($trans_type, $trans_no, Today(), _("Voided."));
146                 add_voided_entry($trans_type, $trans_no, Today(), _("Document reentered."));
147                 $Refs->restore_last($trans_type, $trans_no);
148 //       }
149         } else
150                 $allocs = get_po_prepayments($supp_trans);
151
152         // register exchange rate when used first time on date
153         add_new_exchange_rate($supplier['curr_code'], $supp_trans->tran_date, $supp_trans->ex_rate);
154
155         // store basic transaction info
156         $invoice_id = write_supp_trans($trans_type, 0, $supp_trans->supplier_id, $supp_trans->tran_date, $supp_trans->due_date,
157                 $supp_trans->reference, $supp_trans->supp_reference, 0, 0, 0, $supp_trans->ex_rate, $supp_trans->tax_included);
158
159         if ($trans_no)
160                 move_trans_attachments($trans_type, $trans_no, $invoice_id);
161
162         $supp_trans->trans_no = $invoice_id;
163     $date_ = $supp_trans->tran_date;
164
165         if (!$supp_trans->ex_rate)
166                 $supp_trans->ex_rate = get_exchange_rate_from_home_currency($supplier['curr_code'], $date_);
167
168         // prepare cart for GL postings 
169         $gl_cart = new items_cart($trans_type, $invoice_id);
170         $gl_cart->tran_date = $date_;
171         $gl_cart->set_currency($supplier['curr_code'], $supp_trans->ex_rate);
172
173     $clearing_act = get_company_pref('grn_clearing_act');
174
175         $supp_trans->split_line_values();       // generate amounts for GL postings
176
177         $tax_total = 0;
178         $net_total = 0;
179         foreach($supp_trans->grn_items as $item)
180         {
181                 $item_gl = $item->gl_amounts;
182
183                 $stock_gl_code = get_stock_gl_code($item->item_code);
184                 $dimension = !empty($supp_trans->dimension) ? $supp_trans->dimension :
185                         ($supplier['dimension_id'] ? $supplier['dimension_id'] : $stock_gl_code['dimension_id']);
186                 $dimension2 = !empty($supp_trans->dimension2) ? $supp_trans->dimension2 :
187                         ($supplier['dimension2_id'] ? $supplier['dimension2_id'] : $stock_gl_code['dimension2_id']);
188
189                 $line_tax = 0;
190                 foreach($item_gl as $index => $value)
191                 {
192                          if (is_numeric($index)) // taxes
193                          {
194                                 if ($value['Deductible'])
195                                 {       // GL: VAT deductible
196                                         $gl_cart->add_gl_item($value['purchasing_gl_code'], 0, 0, $value['Deductible']+$value['Adjust']);
197                                         // GL: VAT adjustment due to vat factor
198                                         if ($value['Adjust'])
199                                                 $gl_cart->add_gl_item(get_company_pref('tax_adjustments_act'), 0, 0, -$value['Adjust']);
200                                 }
201                                 if ($value['Payable']) // reverse charge/intracommunity aquisition
202                                 {
203                                         $gl_cart->add_gl_item($value['sales_gl_code'], 0, 0, -$value['Payable']);
204                                 }
205                                 // GL: AP account (vat part)
206                                 if ($value['Value'])
207                                 {
208                                         $gl_cart->add_gl_item($supplier["payable_account"], 0, 0, -$value['Value'] , '', '', $supp_trans->supplier_id);
209                                 }
210                                 if (($item->vat_category == VC_REVERSE) && $supplier['tax_area'] == TA_EU)
211                                         $vat_category = VC_OTHER;
212                                 else
213                                         $vat_category = $item->vat_category;
214
215                                 add_trans_tax_details($trans_type, $invoice_id, 
216                                         $value['tax_type_id'], $value['rate'], $supp_trans->tax_included, $value['Value'],
217                                         $item_gl['Net'], $supp_trans->ex_rate, $date_, $supp_trans->supp_reference, TR_INPUT, $supp_trans->tax_group_id, $vat_category);
218
219                                 $line_tax += $value['Payable'] ? $value['Payable'] : $value['Value'];
220                         }
221                 }
222
223                 // GL: AP account (net)
224                 $gl_cart->add_gl_item($supplier["payable_account"], 0, 0, -$item_gl['Net'], '', '', $supp_trans->supplier_id);
225
226                 $tax_total += $item_gl['Tax'];
227                 $net_total += $item_gl['Net'];
228
229                 // cost line value
230                 $taxfree_line =  $item_gl['Cost'];
231
232                 if (!is_inventory_item($item->item_code))
233                 {
234                         $gl_cart->add_gl_item($supplier["purchase_account"] ? $supplier["purchase_account"] : $stock_gl_code["cogs_account"], $dimension, $dimension2, $taxfree_line);
235
236                 } elseif ($trans_type != ST_SUPPCREDIT) {
237                         $gl_cart->add_gl_item($stock_gl_code["inventory_account"], $dimension, $dimension2, $taxfree_line, _('Return to supplier'));
238                         // we must use invoice value here to preserve proper inventory valuation,
239                         // but if the purchase changed average cost, and any item was sold between invoice and credit,
240                         // the average will not return to the previous one. To fix this additional cost update should be made here to compensate cogs difference on items sold.
241                         update_average_material_cost(null, $item->item_code, $item_gl['Cost']/$item->this_quantity_inv, -$item->this_quantity_inv, $date_);
242                 } else {
243
244                         // calculate difference between clearing cost and actual cost
245                         $diff = $item_gl['Cost'] - $item->std_cost_unit*$item->this_quantity_inv;
246
247                         update_average_material_cost(null, $item->item_code,
248                                 $diff/$item->this_quantity_inv, $item->this_quantity_inv, null, true);
249
250                         if ($clearing_act)
251                         {
252                                 if ($diff != 0) // if value on invoice differs from those posted on GRN receive, post the difference
253                                 {
254
255                                         $gl_cart->add_gl_item($stock_gl_code["inventory_account"],                      // cart is in supplier currency, so need to fix by ex_rate here
256                                                 $dimension, $dimension2, $diff/$gl_cart->rate, _('GRN Provision')); // subject to rounding errors?
257
258                                         $gl_cart->add_gl_item($clearing_act,
259                                                 $dimension, $dimension2, -$diff/$gl_cart->rate);
260
261                                         //Chaitanya
262                                         //If QOH is 0 or negative then update_average_material_cost will be skipped
263                                         //Thus difference in PO and Supp Invoice should be handled separately
264                                         $qoh = get_qoh_on_date($item->item_code);
265                                         if ($qoh <= 0)
266                                         {
267                                                 global $Refs;
268                                                         //Chaitanya : Post a journal entry
269                                                 $id = get_next_trans_no(ST_JOURNAL);
270                                                 $ref = $Refs->get_next(ST_JOURNAL, null, $date_);
271                                                 add_journal(ST_JOURNAL, $id, $diff, $date_, get_company_currency(), $ref);
272                                                 $stock_id = $item->item_code;
273                                                 $stock_gl_code = get_stock_gl_code($stock_id);
274                                                 $memo = _("Supplier invoice adjustment for zero inventory of ").$stock_id." "._("Invoice")." ".$supp_trans->reference;
275                                                 //Reverse the inventory effect if $qoh <=0
276                                                 add_gl_trans_std_cost(ST_JOURNAL, $id, $date_, 
277                                                         $stock_gl_code["inventory_account"],
278                                                         $dimension, $dimension2,
279                                                         $memo, -$diff);
280                                                 //GL Posting to inventory adjustment account
281                                                 add_gl_trans_std_cost(ST_JOURNAL, $id, $date_, 
282                                                         $stock_gl_code["adjustment_account"],
283                                                         $dimension, $dimension2,
284                                                         $memo, $diff);
285                                                         add_audit_trail(ST_JOURNAL, $id, $date_);
286                                                 add_comments(ST_JOURNAL, $id, $date_, $memo);
287                                                 $Refs->save(ST_JOURNAL, $id, $ref);
288                                         }
289                                 }
290                                 $gl_cart->add_gl_item($clearing_act, $dimension, $dimension2, $taxfree_line);
291                         }
292                         else  // no postings on GRN, so post full cost here
293                                 $gl_cart->add_gl_item($stock_gl_code["inventory_account"], $dimension, $dimension2,     $taxfree_line);
294
295                 }
296
297 //        if (is_fa_item($item->item_code)) {
298 //          add_actual_cost($item->order_price, $item->item_code);
299 //        }
300
301         if ($trans_type == ST_SUPPCREDIT)
302                         set_grn_item_credited($item, $supp_trans->supplier_id, $invoice_id, $date_);
303                 else {
304                         add_or_update_purchase_data($supp_trans->supplier_id, $item->item_code, $item->chg_price); 
305
306                         update_supp_received_items_for_invoice($item->id, $item->po_detail_item,
307                                 $item->this_quantity_inv, $item->chg_price);
308                 }
309
310                 $qty = ($trans_type==ST_SUPPCREDIT ? 1 : -1)*$item->this_quantity_inv;
311                 add_supp_invoice_item($trans_type, $invoice_id, $item->item_code,
312                         $item->item_description, 0,     $item->chg_price, $line_tax/$qty, $qty, $item->id, $item->po_detail_item);
313     } // grn_items
314
315
316     /*GL Items are straight forward - just do the debit postings to the GL accounts specified -
317     the credit is to creditors control act */
318     foreach ($supp_trans->gl_codes as $entered_gl_code)
319     {
320                 $memo_ = $entered_gl_code->memo_;
321
322                 $index = is_tax_account($entered_gl_code->gl_code);
323                 if ($index !== false)
324                 {
325                         $gl_cart->add_gl_item($entered_gl_code->gl_code, $entered_gl_code->gl_dim, $entered_gl_code->gl_dim2, $entered_gl_code->amount);
326                         // store tax details if the gl account is a tax account
327                         add_gl_tax_details($entered_gl_code->gl_code, 
328                                 $trans_type, $invoice_id, $entered_gl_code->amount,
329                                 $supp_trans->ex_rate, $date_, $supp_trans->supp_reference, $supp_trans->tax_included, null, $supp_trans->tax_group_id);
330
331                         $tax_total += $entered_gl_code->amount;
332                 } else {
333                         $gl_cart->add_gl_item($entered_gl_code->gl_code, $entered_gl_code->gl_dim, $entered_gl_code->gl_dim2, $entered_gl_code->amount);
334                         $net_total += $entered_gl_code->amount;
335                 }
336                 $gl_cart->add_gl_item($supplier["payable_account"], 0, 0, -$entered_gl_code->amount, '', '', $supp_trans->supplier_id);
337
338                 add_supp_invoice_gl_item($trans_type, $invoice_id, $entered_gl_code->gl_code, $entered_gl_code->amount, $memo_,
339                         $entered_gl_code->gl_dim, $entered_gl_code->gl_dim2);
340     }
341
342         if ($trans_type == ST_SUPPCREDIT) {             // reverse postings if this is credit note
343                 foreach($gl_cart->gl_items as &$line)
344                         $line->amount = -$line->amount;
345                 $net_total = -$net_total;
346                 $tax_total = -$tax_total;
347         }
348         $gl_cart->reduce_gl();  // minimize GL lines
349
350         $gl_cart->write_gl(false); // don't check balances here: we are working on two (maybe unbalanced) carts
351
352         update_supp_trans_sums($trans_type, $invoice_id, round($net_total,2), round($tax_total,2));
353
354         add_comments($trans_type, $invoice_id, $date_, $supp_trans->Comments);
355
356         $Refs->save($trans_type, $invoice_id, $supp_trans->reference);
357
358         if (count($supp_trans->src_docs) == 1)
359         {
360                 $invoice_no = key($supp_trans->src_docs);
361                 $invoice_alloc_balance = get_supp_trans_allocation_balance(ST_SUPPINVOICE, $supp_trans->src_docs);
362                 if ($invoice_alloc_balance > 0) 
363                 {       //the invoice is not already fully allocated 
364
365                         $trans = get_supp_trans($invoice_id, ST_SUPPCREDIT);
366                         $total = -$trans['Total'];
367
368                         $allocate_amount = ($invoice_alloc_balance > $total) ? $total : $invoice_alloc_balance;
369
370                         /*Now insert the allocation record if > 0 */
371                         if ($allocate_amount != 0) 
372                         {
373                                 add_supp_allocation($allocate_amount, ST_SUPPCREDIT, $invoice_id, ST_SUPPINVOICE, $invoice_no,
374                                         $supp_trans->supplier_id, $date_);
375                                 update_supp_trans_allocation(ST_SUPPINVOICE, $invoice_no, $supp_trans->supplier_id);
376                                 update_supp_trans_allocation(ST_SUPPCREDIT, $invoice_id, $supp_trans->supplier_id);
377
378                                 exchange_variation(ST_SUPPCREDIT, $invoice_id, ST_SUPPINVOICE, $supp_trans->src_docs, $date_,
379                                         $allocate_amount, PT_SUPPLIER);
380                         }
381                 }
382         }
383
384         reallocate_payments($invoice_id, ST_SUPPINVOICE, $date_, $net_total+$tax_total, $allocs, $supp_trans->supplier_id);
385
386         hook_db_postwrite($supp_trans, $supp_trans->trans_type);
387     commit_transaction();
388     return $invoice_id;
389 }
390
391 //----------------------------------------------------------------------------------------
392
393 // get all the invoices/credits for a given PO - quite long route to get there !
394
395 function get_po_invoices_credits($po_number)
396 {
397         $sql = "SELECT DISTINCT trans.trans_no, trans.type,     ov_amount+ov_discount+ov_gst AS Total,
398                                 trans.tran_date
399                         FROM ".TB_PREF."supp_trans trans,"
400                                 .TB_PREF."supp_invoice_items line,"
401                                 .TB_PREF."purch_order_details poline,"
402                                 .TB_PREF."purch_orders po
403                 WHERE line.supp_trans_no = trans.trans_no
404                         AND line.supp_trans_type = trans.type
405                         AND line.po_detail_item_id = poline.po_detail_item
406                         AND po.supplier_id = trans.supplier_id
407                         AND po.order_no = poline.order_no
408                         AND poline.order_no = ".db_escape($po_number);
409
410         return db_query($sql, "The invoices/credits for the po $po_number could not be retreived");
411 }
412
413 //----------------------------------------------------------------------------------------
414 //
415 // Retrieve tax ovverides from tax register.
416 //
417 function get_tax_overrides($trans_type, $trans_no)
418 {
419         $tax_overrides = array();
420         $sql = "SELECT amount, tax_type_id as id, rate
421                 FROM ".TB_PREF."trans_tax_details details
422                 WHERE trans_type=".db_escape($trans_type)." AND trans_no=".db_escape($trans_no)
423                 ." AND amount>0"; // skip reposting of nondeductible VAT
424
425         $result = db_query($sql, 'Cannot retrieve tax overrides');
426         while($row = db_fetch($result))
427         {
428                 $tax_overrides[$row['id']] = $row['amount'];
429         }
430
431         return $tax_overrides;
432 }
433 //----------------------------------------------------------------------------------------
434
435 function read_supp_invoice($trans_no, $trans_type, &$supp_trans)
436 {
437         $sql = "SELECT trans.*, supp_name, dimension_id, dimension2_id, curr_code
438                 FROM ".TB_PREF."supp_trans trans,"
439                         .TB_PREF."suppliers sup
440                 WHERE trans_no = ".db_escape($trans_no)." AND type = ".db_escape($trans_type)."
441                 AND sup.supplier_id=trans.supplier_id";
442
443         $result = db_query($sql, "Cannot retreive a supplier transaction");
444
445         if (db_num_rows($result) == 1)
446         {
447                 $trans_row = db_fetch($result);
448
449                 $supp_trans->supplier_id = $trans_row["supplier_id"];
450                 $supp_trans->supplier_name = $trans_row["supp_name"];
451                 $supp_trans->tran_date = sql2date($trans_row["tran_date"]);
452                 $supp_trans->due_date = sql2date($trans_row["due_date"]);
453                 $supp_trans->Comments = get_comments_string($trans_type, $trans_no);
454                 $supp_trans->reference = $trans_row["reference"];
455                 $supp_trans->supp_reference = $trans_row["supp_reference"];
456                 $supp_trans->ov_amount = $trans_row["ov_amount"];
457                 $supp_trans->ov_discount = $trans_row["ov_discount"];
458                 $supp_trans->ov_gst = $trans_row["ov_gst"];
459                 $supp_trans->tax_included = $trans_row["tax_included"];
460                 $supp_trans->dimension = $trans_row["dimension_id"];
461                 $supp_trans->dimension2 = $trans_row["dimension2_id"];
462                 $supp_trans->currency = $trans_row["curr_code"];
463
464                 $id = $trans_row["trans_no"];
465
466                 $result = get_supp_invoice_items($trans_type, $id);
467
468                 if (db_num_rows($result) > 0)
469                 {
470
471             while ($details_row = db_fetch($result))
472             {
473
474                 if ($details_row["gl_code"] == 0)
475                 {
476                         $supp_trans->add_grn_to_trans($details_row["grn_item_id"], $details_row["po_detail_item_id"], $details_row["stock_id"],
477                                         $details_row["description"], 
478                                         $details_row['qty_recd'],
479                                         $details_row['quantity_inv']-$details_row["quantity"],
480                                         $details_row["quantity"], 0, $details_row["FullUnitPrice"],
481                                         0, 0);
482                 }
483                 else
484                 {
485                         $supp_trans->add_gl_codes_to_trans($details_row["gl_code"], get_gl_account_name($details_row["gl_code"]), 
486                                 $details_row["dimension_id"], $details_row["dimension2_id"],
487                                         $details_row["FullUnitPrice"], $details_row["memo_"]);
488                 }
489             }
490                         $supp_trans->tax_overrides = get_tax_overrides($trans_type, $trans_no);
491         }
492         else
493         {
494                         return display_db_error("Invalid supptrans details for supptrans number : $trans_no and type : $trans_type", $sql, true);
495                 }
496
497         }
498         else
499         {
500                 return display_db_error("Invalid supptrans number : $trans_no and type : $trans_type", $sql, true);
501         }
502 }
503
504 //----------------------------------------------------------------------------------------
505
506 function get_matching_invoice_item($stock_id, $po_item_id)
507 {
508         $sql = "SELECT *, tran_date
509                 FROM ".TB_PREF."supp_invoice_items,"
510                         .TB_PREF."supp_trans
511                 WHERE supp_trans_type = ".ST_SUPPINVOICE." AND stock_id = "
512                 .db_escape($stock_id)." AND po_detail_item_id = ".db_escape($po_item_id)."
513                 AND supp_trans_no = trans_no";
514         $result = db_query($sql, "Cannot retreive supplier transaction detail records");
515         return db_fetch($result);  
516 }
517
518 function void_supp_invoice($type, $type_no)
519 {
520         begin_transaction(__FUNCTION__, func_get_args());
521
522         hook_db_prevoid($type, $type_no);
523         $trans = get_supp_trans($type_no, $type);
524
525         void_bank_trans($type, $type_no, true);
526
527         void_gl_trans($type, $type_no, true);
528
529         void_supp_allocations($type, $type_no);
530
531         void_supp_trans($type, $type_no);
532
533         $result = get_supp_invoice_items($type, $type_no);
534
535         // now remove this invoice/credit from any GRNs/POs that it's related to
536         if (db_num_rows($result) > 0)
537         {
538                 $date_ = Today();
539         while ($details_row = db_fetch($result))
540         {
541                 if ((int)$details_row["grn_item_id"] > 0) // it can be empty for GL items
542                 {
543                         // Changed 2008-10-17 by Joe Hunt to get the avg. material cost updated
544                                 $old = update_supp_received_items_for_invoice($details_row["grn_item_id"],
545                                         $details_row["po_detail_item_id"], -$details_row["quantity"], $details_row["FullUnitPrice"]); 
546                                 
547                                 //$diff = $details_row["FullUnitPrice"] - $old[2];
548                                 $old_date = sql2date($old[1]);
549                                 
550                                 $batch = get_grn_batch_from_item($details_row["grn_item_id"]);  
551                                 $grn = get_grn_batch($batch);
552                         if ($type == ST_SUPPCREDIT) // credit note 2009-06-14 Joe Hunt Must restore the po and grn
553                         {       // We must get the corresponding invoice item to check for price chg.
554                                         $match = get_matching_invoice_item($details_row["stock_id"], $details_row["po_detail_item_id"]);
555                                         //Chaitanya : Skipped costing block & handle in void_stock_move
556                                         // We must get the corresponding invoice item to check for price chg.
557                                         /*if ($match !== false)
558                                                 $mat_cost = update_average_material_cost($grn["supplier_id"], $details_row["stock_id"],  
559                                                         $match["unit_price"], -$details_row["quantity"], sql2date($match['tran_date']), $match['tran_date'] !== $trans['tran_date']);
560                                         else            
561                                                 $mat_cost = update_average_material_cost($grn["supplier_id"], $details_row["stock_id"],  
562                                                         $details_row["FullUnitPrice"], -$details_row["quantity"], $old_date, $old[1] !== $trans['tran_date']);*/
563
564                                         $sql = "UPDATE ".TB_PREF."purch_order_details
565                                         SET quantity_ordered = quantity_ordered + ".-$details_row["quantity"].", ";
566                                 if ($match !== false)
567                                         $sql .= "act_price=".$match['unit_price'].", ";
568                                 $sql .= "quantity_received = quantity_received + ".-$details_row["quantity"]."
569                                     WHERE po_detail_item = ".$details_row["po_detail_item_id"];
570                                         db_query($sql, "a purchase order details record could not be updated. This receipt of goods has not been processed ");
571                                         $sql = "UPDATE ".TB_PREF."grn_items SET qty_recd=qty_recd+".-$details_row["quantity"]."
572                                                 WHERE id=".$details_row["grn_item_id"];
573                                         db_query($sql);
574                         }
575                         else
576                         {
577                                         $diff = get_diff_in_home_currency($grn["supplier_id"], $old_date, sql2date($trans['tran_date']), $old[2], 
578                                                 $details_row["FullUnitPrice"]);
579                                         // Only adjust the avg for the diff
580                                         $mat_cost = update_average_material_cost(null, $details_row["stock_id"],
581                                                 $diff, -$details_row["quantity"], $old_date, true);
582                                                 
583                                         //Chaitanya : Reverse effect
584                                         //If QOH is 0 or negative then update_average_material_cost will be skipped
585                                         //Thus difference in PO and Supp Invoice should be handled separately
586                                         
587                                         $qoh = get_qoh_on_date($details_row["stock_id"]);
588                                         if ($diff*$details_row["quantity"] !=0 && $qoh <= 0)
589                                         {
590                                                 global $Refs;
591
592                                                 //Chaitanya : Post a journal entry
593                                                 $id = get_next_trans_no(ST_JOURNAL);
594                                                 $ref = $Refs->get_next(ST_JOURNAL, null, $date_);
595                                                 add_journal(ST_JOURNAL, $id, $details_row["quantity"] * $diff, $old_date, get_company_currency(), $ref);
596                                                 $stock_id = $details_row["stock_id"];
597                                                 $stock_gl_code = get_stock_gl_code($stock_id);
598                                                 $memo = "Reversing Supplier invoice adjustment for zero inventory of ".$stock_id." Invoice: ".$trans['reference'];
599                                                 //Reverse the inventory effect if $qoh <=0
600                                                 add_gl_trans_std_cost(ST_JOURNAL, $id, $old_date, 
601                                                         $stock_gl_code["inventory_account"],
602                                                         $dim, $dim2, $memo, $details_row["quantity"] * $diff);
603                                                 //GL Posting to inventory adjustment account
604                                                 add_gl_trans_std_cost(ST_JOURNAL, $id, $old_date, 
605                                                         $stock_gl_code["adjustment_account"],
606                                                         $dim, $dim2, $memo, -$details_row["quantity"] * $diff);
607                                                 
608                                                 add_audit_trail(ST_JOURNAL, $id, $old_date);
609                                                 add_comments(ST_JOURNAL, $id, $old_date, $memo);
610                                                 $Refs->save(ST_JOURNAL, $id, $ref);
611                                         }
612                                 }
613                 }
614         }
615         }
616
617         if ($type == ST_SUPPCREDIT) // void the credits in stock moves
618                 void_stock_move($type, $type_no); 
619         void_supp_invoice_items($type, $type_no);
620         void_trans_tax_details($type, $type_no);
621
622         commit_transaction();
623 }
624
625 //----------------------------------------------------------------------------------------
626 function get_gl_account_info($acc)
627 {
628         $sql = "SELECT account_code, account_name FROM ".TB_PREF."chart_master WHERE account_code=".db_escape($acc);
629         return db_query($sql,"get account information");
630 }
631
632 function is_reference_already_there($supplier_id, $supp_reference, $trans_no=0)
633 {
634         $sql = "SELECT COUNT(*) FROM ".TB_PREF."supp_trans WHERE supplier_id="
635                 .db_escape($supplier_id) . " AND supp_reference=" 
636                 .db_escape($supp_reference) 
637                 . " AND ov_amount!=0"; // ignore voided invoice references
638         if ($trans_no)
639                 $sql .= " AND trans_no!=$trans_no";
640         $result=db_query($sql,"The sql to check for the previous entry of the same invoice failed");
641
642         $myrow = db_fetch_row($result);
643         return $myrow[0] > 0;
644 }
645
646 function find_src_invoices($cart)
647 {
648         $invoices = $po_ids = array();
649         foreach($cart->grn_items as $item)
650                 $po_ids[] = "'$item->po_detail_item'";  // credit item lines
651
652         if (count($po_ids)) {
653                 $sql = "SELECT DISTINCT trans.trans_no, trans.reference, trans.supp_reference
654                         FROM ".TB_PREF."supp_invoice_items items
655                         LEFT JOIN ".TB_PREF."supp_trans trans ON trans.trans_no=items.supp_trans_no AND trans.`type`=items.supp_trans_type
656                         WHERE items.po_detail_item_id IN (" . implode(',', $po_ids). ")"." AND items.supp_trans_type=20";
657                 $result = db_query($sql, "cannot find source invoice details");
658                 while ($rec = db_fetch($result))
659                 {
660                         $invoices[$rec['trans_no']] = $rec['supp_reference']; // array($rec['reference'], $rec['supp_reference']);
661                 }
662         }
663         return $invoices;
664 }