Improved journal trans: added currency support, tax and source document date. Allowed...
[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         $sql = "SELECT supp.supp_name, terms.terms, terms.days_before_due,
20                 terms.day_in_following_month, supp.tax_included, supp.tax_algorithm,
21                 supp.tax_group_id, tax_group.name AS tax_group_name,
22                 supp.credit_limit - Sum(IFNULL(IF(trans.type=".ST_SUPPCREDIT.", -1, 1) 
23                         * (ov_amount + ov_gst + ov_discount),0)) as cur_credit
24                 FROM ".TB_PREF."suppliers supp LEFT JOIN "
25                         .TB_PREF."supp_trans trans ON supp.supplier_id = trans.supplier_id, "
26                         .TB_PREF."payment_terms terms, "
27                         .TB_PREF."tax_groups tax_group
28                 WHERE supp.tax_group_id = tax_group.id
29                 AND supp.payment_terms=terms.terms_indicator
30                 AND supp.supplier_id = ".db_escape($supplier_id)." GROUP BY supp.supp_name";
31
32         $result = db_query($sql, "The supplier record selected: " . $supplier_id . " cannot be retrieved");
33
34         $myrow = db_fetch($result);
35
36     if ($supp_trans->tran_date == "")
37     {
38                 $supp_trans->tran_date = Today();
39
40                 if (!is_date_in_fiscalyear($supp_trans->tran_date))
41                         $supp_trans->tran_date = end_fiscalyear();
42         }
43         if ($supp_trans->supplier_id != $supplier_id)
44             get_duedate_from_terms($supp_trans);
45
46     $supp_trans->supplier_id = $supplier_id;
47     $supp_trans->tax_included = $myrow['tax_included'];
48     $supp_trans->tax_algorithm = $supp_trans->stored_algorithm = $myrow['tax_algorithm'];
49     $supp_trans->supplier_name = $myrow['supp_name'];
50         $supp_trans->terms = array( 
51                 'description' => $myrow['terms'],
52                 'days_before_due' => $myrow['days_before_due'], 
53                 'day_in_following_month' => $myrow['day_in_following_month'] );
54
55         $supp_trans->credit = $myrow['cur_credit'];
56
57         $supp_trans->tax_description = $myrow['tax_group_name'];
58         $supp_trans->tax_group_id = $myrow['tax_group_id'];
59
60 }
61
62 //-------------------------------------------------------------------------------------------------
63 //      Updates invoiced quantity in PO and GRN line, and act_price in PO
64 //  Returns:
65 // if chg_price is set:  previous act_price, delivery date and unit_price from PO
66 //
67 function update_supp_received_items_for_invoice($id, $po_detail_item, $qty_invoiced, $chg_price=null)
68 {
69         if ($chg_price != null)
70         {
71                 $sql = "SELECT act_price, unit_price FROM ".TB_PREF."purch_order_details WHERE
72                         po_detail_item = ".db_escape($po_detail_item);
73                 $result = db_query($sql, "The old actual price of the purchase order line could not be retrieved");
74                 $row = db_fetch_row($result);
75                 $ret = $row[0];
76
77                 $unit_price = $row[1]; //Added by Rasmus
78
79                 $sql = "SELECT delivery_date FROM ".TB_PREF."grn_batch,".TB_PREF."grn_items WHERE
80                         ".TB_PREF."grn_batch.id = ".TB_PREF."grn_items.grn_batch_id AND "
81                         .TB_PREF."grn_items.id=".db_escape($id);
82                 $result = db_query($sql, "The old delivery date from the received record cout not be retrieved");
83                 $row = db_fetch_row($result);
84                 $date = $row[0];
85         }
86         else
87         {
88                 $ret = 0;
89                 $date = "";
90                 $unit_price = 0; // Added by Rasmus
91         }
92     $sql = "UPDATE ".TB_PREF."purch_order_details
93                 SET qty_invoiced = qty_invoiced + ".db_escape($qty_invoiced);
94
95         if ($chg_price != null)
96                 $sql .= " , act_price = ".db_escape($chg_price);
97
98         $sql .= " WHERE po_detail_item = ".db_escape($po_detail_item);
99     db_query($sql, "The quantity invoiced of the purchase order line could not be updated");
100
101     $sql = "UPDATE ".TB_PREF."grn_items
102         SET quantity_inv = quantity_inv + ".db_escape($qty_invoiced)."
103         WHERE id = ".db_escape($id);
104         db_query($sql, "The quantity invoiced off the items received record could not be updated");
105         return array($ret, $date, $unit_price);
106 }
107
108 function get_diff_in_home_currency($supplier, $old_date, $date, $amount1, $amount2)
109 {
110         $dec = user_price_dec();
111         price_decimal_format($amount2, $dec);
112         $currency = get_supplier_currency($supplier);
113         $ex_rate = get_exchange_rate_to_home_currency($currency, $old_date);
114         $amount1 = $amount1 / $ex_rate;
115         $ex_rate = get_exchange_rate_to_home_currency($currency, $date);
116         $amount2 = $amount2 / $ex_rate;
117         $diff = $amount2 - $amount1;
118         //return round2($diff, $dec);
119         return $diff;
120 }
121 //----------------------------------------------------------------------------------------
122
123 function add_supp_invoice(&$supp_trans) // do not receive as ref because we change locally
124 {
125         global $Refs;
126
127         //$company_currency = get_company_currency();
128         $trans_no = $supp_trans->trans_no;
129         $trans_type = $supp_trans->trans_type;
130         $supplier = get_supplier($supp_trans->supplier_id);
131
132         begin_transaction();
133         hook_db_prewrite($supp_trans, $trans_type);
134         $tax_total = 0;
135     $taxes = $supp_trans->get_taxes($supp_trans->tax_group_id);
136         if ($trans_no) {
137                 $allocs = get_payments_for($trans_no, $trans_type); // save allocations
138                 void_transaction($trans_type, $trans_no, Today(), _("Document reentered."));
139                 $Refs->restore_last($trans_type, $trans_no);
140         } else
141                 $allocs = get_po_prepayments($supp_trans);
142
143         add_new_exchange_rate($supplier['curr_code'], $supp_trans->tran_date, $supp_trans->ex_rate);
144
145     foreach ($taxes as $n => $taxitem)
146     {
147                 $taxes[$n]['Value'] =  round2($taxitem['Value'], user_price_dec());
148         $tax_total += $taxes[$n]['Value'];
149     }
150
151         $invoice_items_total = $supp_trans->get_items_total();
152
153         $item_added_tax = 0;
154     if (!$supp_trans->tax_included)
155     {
156             $taxes = $supp_trans->get_taxes($supp_trans->tax_group_id);
157             foreach ($taxes as $n => $taxitem)
158                         $item_added_tax += isset($taxitem['Override']) ? $taxitem['Override'] : round2($taxitem['Value'], user_price_dec());
159         }
160
161         if ($trans_type == ST_SUPPCREDIT)
162         {
163                 // let's negate everything because it's a credit note
164                 $invoice_items_total = -$invoice_items_total;
165                 $tax_total = -$tax_total;
166                 $supp_trans->ov_discount = -$supp_trans->ov_discount; // this isn't used at all...
167                 $item_added_tax = -$item_added_tax;
168         }
169
170     $date_ = $supp_trans->tran_date;
171         $ex_rate = get_exchange_rate_from_home_currency($supplier['curr_code'], $date_);
172
173     /*First insert the invoice into the supp_trans table*/
174         $invoice_id = write_supp_trans($trans_type, 0, $supp_trans->supplier_id, $date_, $supp_trans->due_date,
175                 $supp_trans->reference, $supp_trans->supp_reference,
176                 $invoice_items_total, $item_added_tax, $supp_trans->ov_discount, "", 0, $supp_trans->tax_included,
177                 $supp_trans->tax_algorithm);
178
179         if ($trans_no)
180                 move_trans_attachments($trans_type, $trans_no, $invoice_id);
181
182         $supp_trans->trans_no = $invoice_id;
183
184         $total = 0;
185
186     /* Now the TAX account */
187     $taxes = $supp_trans->get_taxes($supp_trans->tax_group_id, 0, false);
188         $net_diff = 0;
189
190     foreach ($taxes as $taxitem)
191     {
192                 if ($taxitem['Net'] != 0)
193                 {
194                         if (isset($taxitem['Override'])) {
195                                 if ($supp_trans->tax_included) { // if tax included, fix net amount to preserve overall line price
196                                         $net_diff += $taxitem['Override'] - $taxitem['Value'];
197                                         $taxitem['Net'] += $taxitem['Override'] - $taxitem['Value'];
198                                 }
199                                 $taxitem['Value'] = $taxitem['Override'];
200                         }
201                         add_trans_tax_details($trans_type, $invoice_id, 
202                                 $taxitem['tax_type_id'], $taxitem['rate'], $supp_trans->tax_included, $taxitem['Value'],
203                                 $taxitem['Net'], $ex_rate, $date_, $supp_trans->supp_reference);
204
205                         if (isset($taxitem['purchasing_gl_code']))
206                         {
207                                 if ($trans_type == ST_SUPPCREDIT)
208                                         $taxitem['Value'] = -$taxitem['Value'];
209                                 $total += add_gl_trans_supplier($trans_type, $invoice_id, $date_,
210                                         $taxitem['purchasing_gl_code'], 0, 0, $taxitem['Value'],
211                                         $supp_trans->supplier_id,
212                                         "A general ledger transaction for the tax amount could not be added");
213                         }
214                 }
215     }
216     if ($trans_type == ST_SUPPCREDIT)
217                 $net_diff = -$net_diff;
218
219     /* Now the AP account */
220     $total += add_gl_trans_supplier($trans_type, $invoice_id, $date_, $supplier["payable_account"], 0, 0,
221                 -($invoice_items_total +  $item_added_tax + $supp_trans->ov_discount),
222                 $supp_trans->supplier_id,
223                 "The general ledger transaction for the control total could not be added");
224
225         $to_allocate = ($invoice_items_total + $item_added_tax + $supp_trans->ov_discount);
226
227     foreach ($supp_trans->gl_codes as $entered_gl_code)
228     {
229             /*GL Items are straight forward - just do the debit postings to the GL accounts specified -
230             the credit is to creditors control act  done later for the total invoice value + tax*/
231
232                 if ($trans_type == ST_SUPPCREDIT)
233                         $entered_gl_code->amount = -$entered_gl_code->amount;
234
235                 $memo_ = $entered_gl_code->memo_;
236                 $total += add_gl_trans_supplier($trans_type, $invoice_id, $date_, $entered_gl_code->gl_code,
237                         $entered_gl_code->gl_dim, $entered_gl_code->gl_dim2, $entered_gl_code->amount, $supp_trans->supplier_id, "", 0, $memo_);
238
239                 add_supp_invoice_gl_item($trans_type, $invoice_id, $entered_gl_code->gl_code, $entered_gl_code->amount, $memo_,
240                         $entered_gl_code->gl_dim, $entered_gl_code->gl_dim2);
241
242                 // store tax details if the gl account is a tax account
243                 if ($trans_type == ST_SUPPCREDIT)
244                         $entered_gl_code->amount = -$entered_gl_code->amount;
245                 add_gl_tax_details($entered_gl_code->gl_code, 
246                         $trans_type, $invoice_id, $entered_gl_code->amount,
247                         $ex_rate, $date_, $supp_trans->supp_reference, $supp_trans->tax_included);
248     }
249
250     $clearing_act = get_company_pref('grn_clearing_act');
251     foreach ($supp_trans->grn_items as $line_no => $entered_grn)
252     {
253
254         if ($trans_type == ST_SUPPCREDIT)
255         {
256                         $entered_grn->this_quantity_inv = -$entered_grn->this_quantity_inv;
257                         set_grn_item_credited($entered_grn, $supp_trans->supplier_id, $invoice_id, $date_);
258         }
259
260                 // For tax included pricelist the net price is calculated down from tax_included price.
261                 // To avoid rounding errors we have to operate on line value instead of price
262                 // Additionally we have to take into account differences in net value
263                 // due to variations in tax calculations on supplier side. More over there is no direct relation between
264                 // taxes and sales accounts, so we add net_diff just to first posted net value. This is _ugly_hack_
265                 // which save us from rewriting whole routine, and works right only for small tax differences.
266
267                 $taxfree_line = get_tax_free_price_for_item($entered_grn->item_code, $entered_grn->this_quantity_inv * $entered_grn->chg_price, 
268                           $supp_trans->tax_group_id, $supp_trans->tax_included) - $net_diff; $net_diff = 0;
269
270                 $line_tax = get_full_price_for_item($entered_grn->item_code,
271                         $entered_grn->this_quantity_inv * $entered_grn->chg_price, 0, $supp_trans->tax_included) - $taxfree_line;
272
273                 $stock_gl_code = get_stock_gl_code($entered_grn->item_code);
274
275                 $dim = !empty($supp_trans->dimension) ? $supp_trans->dimension :
276                         ($supplier['dimension_id'] ? $supplier['dimension_id'] : $stock_gl_code['dimension_id']);
277                 $dim2 = !empty($supp_trans->dimension2) ? $supp_trans->dimension2 :
278                         ($supplier['dimension2_id'] ? $supplier['dimension2_id'] : $stock_gl_code['dimension2_id']);
279         if ($trans_type == ST_SUPPCREDIT)
280                 {
281                         $iv_act = (is_inventory_item($entered_grn->item_code) ? $stock_gl_code["inventory_account"] : 
282                                 ($supplier["purchase_account"] ? $supplier["purchase_account"] : $stock_gl_code["cogs_account"]));
283                         $total += add_gl_trans_supplier($trans_type, $invoice_id, $date_, $iv_act,
284                                 $dim, $dim2, $taxfree_line, $supp_trans->supplier_id);
285                 }
286         else
287         {
288                 // -------------- if price changed since po received.
289                         $iv_act = is_inventory_item($entered_grn->item_code) ? ($clearing_act ? $clearing_act : $stock_gl_code["inventory_account"]) : 
290                                 ($supplier["purchase_account"] ? $supplier["purchase_account"] : $stock_gl_code["cogs_account"]);
291                 $old = update_supp_received_items_for_invoice($entered_grn->id, $entered_grn->po_detail_item,
292                         $entered_grn->this_quantity_inv, $entered_grn->chg_price);
293
294                         // Since the standard cost is always calculated on basis of the po unit_price,
295                         // this is also the price that should be the base of calculating the price diff.
296                         // In cases where there is two different po invoices on the same delivery with different unit prices this will not work either
297
298                         $old_price = $old[2];
299
300                         $old_date = sql2date($old[1]);
301                         if (!is_inventory_item($entered_grn->item_code))
302                                 $total += add_gl_trans_supplier($trans_type, $invoice_id, $date_, $iv_act,
303                                         $dim, $dim2, $taxfree_line, $supp_trans->supplier_id);
304                         else
305                         {
306                                 $ex_rate = get_exchange_rate_from_home_currency($supplier['curr_code'], $old_date);
307                                 $old_value = get_tax_free_price_for_item($entered_grn->item_code, $entered_grn->this_quantity_inv * $old_price, 
308                                           $supp_trans->tax_group_id, $supp_trans->tax_included);
309
310                                 $currency = get_supplier_currency($supp_trans->supplier_id);
311
312                                 $total += add_gl_trans_supplier($trans_type, $invoice_id, $date_, $iv_act,
313                                         $dim, $dim2, $entered_grn->this_quantity_inv * $old_price, $supp_trans->supplier_id, "", $ex_rate);
314                                 $diff = get_diff_in_home_currency($supp_trans->supplier_id, $old_date, $date_, $old_value, 
315                                         $taxfree_line);
316
317                                 $mat_cost = update_average_material_cost(null, $entered_grn->item_code,
318                                         $diff/$entered_grn->this_quantity_inv, $entered_grn->this_quantity_inv, null, true);
319
320                                 //Add GL transaction for GRN Provision in case of difference
321                                 if ($diff != 0)
322                                 {
323                                         $total += add_gl_trans($trans_type, $invoice_id, $date_, $stock_gl_code["inventory_account"],
324                                                 $dim, $dim2, 'GRN Provision', $diff, null, null, null,
325                                                 "The general ledger transaction could not be added for the GRN of the inventory item");
326
327                                         //If QOH is 0 or negative then update_average_material_cost will be skipped
328                                         //Thus difference in PO and Supp Invoice should be handled separately
329                                         $qoh = get_qoh_on_date($entered_grn->item_code);
330                                         if ($qoh <= 0)
331                                         {
332                                                 global $Refs;
333
334                                                 $id = get_next_trans_no(ST_JOURNAL);
335                                                 $ref = $Refs->get_next(ST_JOURNAL, null, $date_);
336                                                 add_journal(ST_JOURNAL, $id, $diff, $date_, get_company_currency(), $ref);
337                                                 $stock_id = $entered_grn->item_code;
338                                                 $stock_gl_code = get_stock_gl_code($stock_id);
339                                                 $memo = _("Supplier invoice adjustment for zero inventory of ").$stock_id." "._("Invoice")." ".$supp_trans->reference;
340                                                 //Reverse the inventory effect if $qoh <=0
341                                                 add_gl_trans_std_cost(ST_JOURNAL, $id, $date_, 
342                                                         $stock_gl_code["inventory_account"],
343                                                         $dim, $dim2, $memo, -$diff);
344                                                 //GL Posting to inventory adjustment account
345                                                 add_gl_trans_std_cost(ST_JOURNAL, $id, $date_, 
346                                                         $stock_gl_code["adjustment_account"],
347                                                         $dim, $dim2, $memo, $diff);
348
349                                                 add_audit_trail(ST_JOURNAL, $id, $date_);
350                                                 add_comments(ST_JOURNAL, $id, $date_, $memo);
351                                                 $Refs->save(ST_JOURNAL, $id, $ref);
352                                         }
353                                 }
354                         }
355                         add_or_update_purchase_data($supp_trans->supplier_id, $entered_grn->item_code, $entered_grn->chg_price); 
356                 }
357
358                 add_supp_invoice_item($trans_type, $invoice_id, $entered_grn->item_code,
359                         $entered_grn->item_description, 0,      $entered_grn->chg_price, $line_tax/$entered_grn->this_quantity_inv,
360                         $entered_grn->this_quantity_inv, $entered_grn->id, $entered_grn->po_detail_item, "");
361     } /* end of GRN postings */
362
363         /*Post a balance post if $total != 0 */
364         add_gl_balance($trans_type, $invoice_id, $date_, -$total, PT_SUPPLIER, $supp_trans->supplier_id); // ??
365
366         add_comments($trans_type, $invoice_id, $date_, $supp_trans->Comments);
367
368         $Refs->save($trans_type, $invoice_id, $supp_trans->reference);
369
370         if ($supp_trans->src_docs)
371         {
372                 $invoice_alloc_balance = get_supp_trans_allocation_balance(ST_SUPPINVOICE, $supp_trans->src_docs);
373                 if ($invoice_alloc_balance > 0) 
374                 {       //the invoice is not already fully allocated 
375
376                         $trans = get_supp_trans($invoice_id, ST_SUPPCREDIT);
377                         $total = -$trans['Total'];
378
379                         $allocate_amount = ($invoice_alloc_balance > $total) ? $total : $invoice_alloc_balance;
380
381                         /*Now insert the allocation record if > 0 */
382                         if ($allocate_amount != 0) 
383                         {
384                                 add_supp_allocation($allocate_amount, ST_SUPPCREDIT, $invoice_id, ST_SUPPINVOICE, $invoice_no,
385                                         $supp_trans->supplier_id, $date_);
386                                 update_supp_trans_allocation(ST_SUPPINVOICE, $invoice_no, $supp_trans->supplier_id);
387                                 update_supp_trans_allocation(ST_SUPPCREDIT, $invoice_id, $supp_trans->supplier_id);
388
389                                 exchange_variation(ST_SUPPCREDIT, $invoice_id, ST_SUPPINVOICE, $supp_trans->src_docs, $date_,
390                                         $allocate_amount, PT_SUPPLIER);
391                         }
392                 }
393         }
394
395 //_vd($allocs);
396         reallocate_payments($invoice_id, ST_SUPPINVOICE, $date_, $to_allocate, $allocs);
397 //_vd(get_payments_for($sales_order, ST_PURCHORDER));
398 //_vd(get_payments_for($invoice_id, ST_SUPPINVOICE));
399 //exit;
400         $supp_trans->trans_no = $invoice_id;
401         hook_db_postwrite($supp_trans, $supp_trans->trans_type);
402     commit_transaction();
403
404     return $invoice_id;
405 }
406
407 //----------------------------------------------------------------------------------------
408
409 // get all the invoices/credits for a given PO - quite long route to get there !
410
411 function get_po_invoices_credits($po_number)
412 {
413         $sql = "SELECT DISTINCT ".TB_PREF."supp_trans.trans_no, ".TB_PREF."supp_trans.type,
414                 ov_amount+ov_discount+ov_gst AS Total,
415                 ".TB_PREF."supp_trans.tran_date
416                 FROM ".TB_PREF."supp_trans, ".TB_PREF."supp_invoice_items, "
417                 .TB_PREF."purch_order_details, ".TB_PREF."purch_orders
418                 WHERE ".TB_PREF."supp_invoice_items.supp_trans_no = ".TB_PREF."supp_trans.trans_no
419                 AND ".TB_PREF."supp_invoice_items.supp_trans_type = ".TB_PREF."supp_trans.type
420                 AND ".TB_PREF."supp_invoice_items.po_detail_item_id = ".TB_PREF."purch_order_details.po_detail_item
421                 AND ".TB_PREF."purch_orders.supplier_id = ".TB_PREF."supp_trans.supplier_id
422                 AND ".TB_PREF."purch_orders.order_no = ".TB_PREF."purch_order_details.order_no
423                 AND ".TB_PREF."purch_order_details.order_no = ".db_escape($po_number);
424
425         return db_query($sql, "The invoices/credits for the po $po_number could not be retreived");
426 }
427
428 //----------------------------------------------------------------------------------------
429 //
430 // Retrieve tax ovverides from tax register.
431 //
432 function get_tax_overrides($trans_type, $trans_no)
433 {
434         $tax_overrides = array();
435         $sql = "SELECT amount, tax_type_id as id, rate
436                 FROM ".TB_PREF."trans_tax_details details
437                 WHERE trans_type=".db_escape($trans_type)." AND trans_no=".db_escape($trans_no)
438                 ." AND amount>0"; // skip reposting of nondeductible VAT
439
440         $result = db_query($sql, 'Cannot retrieve tax overrides');
441         while($row = db_fetch($result))
442         {
443                 $tax_overrides[$row['id']] = $row['amount'];
444         }
445
446         return $tax_overrides;
447 }
448 //----------------------------------------------------------------------------------------
449
450 function read_supp_invoice($trans_no, $trans_type, &$supp_trans)
451 {
452         $sql = "SELECT ".TB_PREF."supp_trans.*, supp_name 
453                 FROM ".TB_PREF."supp_trans,".TB_PREF."suppliers
454                 WHERE trans_no = ".db_escape($trans_no)." AND type = ".db_escape($trans_type)."
455                 AND ".TB_PREF."suppliers.supplier_id=".TB_PREF."supp_trans.supplier_id";
456
457         $result = db_query($sql, "Cannot retreive a supplier transaction");
458
459         if (db_num_rows($result) == 1)
460         {
461                 $trans_row = db_fetch($result);
462
463                 $supp_trans->supplier_id = $trans_row["supplier_id"];
464                 $supp_trans->supplier_name = $trans_row["supp_name"];
465                 $supp_trans->tran_date = sql2date($trans_row["tran_date"]);
466                 $supp_trans->due_date = sql2date($trans_row["due_date"]);
467                 $supp_trans->Comments = get_comments_string($trans_type, $trans_no);
468                 $supp_trans->reference = $trans_row["reference"];
469                 $supp_trans->supp_reference = $trans_row["supp_reference"];
470                 $supp_trans->ov_amount = $trans_row["ov_amount"];
471                 $supp_trans->ov_discount = $trans_row["ov_discount"];
472                 $supp_trans->ov_gst = $trans_row["ov_gst"];
473                 $supp_trans->tax_included = $trans_row["tax_included"];
474                 $supp_trans->stored_algorithm = $supp_trans->tax_algorithm = $trans_row["tax_algorithm"];
475
476                 $id = $trans_row["trans_no"];
477
478                 $result = get_supp_invoice_items($trans_type, $id);
479
480                 if (db_num_rows($result) > 0)
481                 {
482
483             while ($details_row = db_fetch($result))
484             {
485
486                 if ($details_row["gl_code"] == 0)
487                 {
488                         $supp_trans->add_grn_to_trans($details_row["grn_item_id"], $details_row["po_detail_item_id"], $details_row["stock_id"],
489                                         $details_row["description"], 
490                                         $details_row['qty_recd'],
491                                         $details_row['quantity_inv']-$details_row["quantity"],
492                                         $details_row["quantity"], 0, $details_row["FullUnitPrice"],
493                                         0, 0);
494                 }
495                 else
496                 {
497                         $supp_trans->add_gl_codes_to_trans($details_row["gl_code"], get_gl_account_name($details_row["gl_code"]), 0, 0,
498                                         $details_row["FullUnitPrice"], $details_row["memo_"], $details_row["dimension_id"], $details_row["dimension2_id"]);
499                 }
500             }
501                         $supp_trans->tax_overrides = get_tax_overrides($trans_type, $trans_no);
502         }
503         else
504         {
505                         return display_db_error("Invalid supptrans details for supptrans number : $trans_no and type : $trans_type", $sql, true);
506                 }
507
508         }
509         else
510         {
511                 return display_db_error("Invalid supptrans number : $trans_no and type : $trans_type", $sql, true);
512         }
513 }
514
515 //----------------------------------------------------------------------------------------
516
517 function get_matching_invoice_item($stock_id, $po_item_id)
518 {
519         $sql = "SELECT *, tran_date FROM ".TB_PREF."supp_invoice_items, ".TB_PREF."supp_trans
520                 WHERE supp_trans_type = ".ST_SUPPINVOICE." AND stock_id = "
521                 .db_escape($stock_id)." AND po_detail_item_id = ".db_escape($po_item_id)."
522                 AND supp_trans_no = trans_no";
523         $result = db_query($sql, "Cannot retreive supplier transaction detail records");
524         return db_fetch($result);  
525 }
526
527 function void_supp_invoice($type, $type_no)
528 {
529         begin_transaction();
530
531         hook_db_prevoid($type, $type_no);
532         $trans = get_supp_trans($type_no, $type);
533
534         void_bank_trans($type, $type_no, true);
535
536         void_gl_trans($type, $type_no, true);
537
538         void_supp_allocations($type, $type_no);
539
540         void_supp_trans($type, $type_no);
541
542         $result = get_supp_invoice_items($type, $type_no);
543
544         // now remove this invoice/credit from any GRNs/POs that it's related to
545         if (db_num_rows($result) > 0)
546         {
547                 $date_ = Today();
548         while ($details_row = db_fetch($result))
549         {
550                 if ((int)$details_row["grn_item_id"] > 0) // it can be empty for GL items
551                 {
552                         // Changed 2008-10-17 by Joe Hunt to get the avg. material cost updated
553                                 $old = update_supp_received_items_for_invoice($details_row["grn_item_id"],
554                                         $details_row["po_detail_item_id"], -$details_row["quantity"], $details_row["FullUnitPrice"]); 
555                                 
556                                 //$diff = $details_row["FullUnitPrice"] - $old[2];
557                                 $old_date = sql2date($old[1]);
558                                 
559                                 $batch = get_grn_batch_from_item($details_row["grn_item_id"]);  
560                                 $grn = get_grn_batch($batch);
561                         if ($type == ST_SUPPCREDIT) // credit note 2009-06-14 Joe Hunt Must restore the po and grn
562                         {       // We must get the corresponding invoice item to check for price chg.
563                                         $match = get_matching_invoice_item($details_row["stock_id"], $details_row["po_detail_item_id"]);
564                                         //Chaitanya : Skipped costing block & handle in void_stock_move
565                                         // We must get the corresponding invoice item to check for price chg.
566                                         /*if ($match !== false)
567                                                 $mat_cost = update_average_material_cost($grn["supplier_id"], $details_row["stock_id"],  
568                                                         $match["unit_price"], -$details_row["quantity"], sql2date($match['tran_date']), $match['tran_date'] !== $trans['tran_date']);
569                                         else            
570                                                 $mat_cost = update_average_material_cost($grn["supplier_id"], $details_row["stock_id"],  
571                                                         $details_row["FullUnitPrice"], -$details_row["quantity"], $old_date, $old[1] !== $trans['tran_date']);*/
572
573                                         $sql = "UPDATE ".TB_PREF."purch_order_details
574                                         SET quantity_ordered = quantity_ordered + ".-$details_row["quantity"].", ";
575                                 if ($match !== false)
576                                         $sql .= "act_price=".$match['unit_price'].", ";
577                                 $sql .= "quantity_received = quantity_received + ".-$details_row["quantity"]."
578                                     WHERE po_detail_item = ".$details_row["po_detail_item_id"];
579                                         db_query($sql, "a purchase order details record could not be updated. This receipt of goods has not been processed ");
580                                         $sql = "UPDATE ".TB_PREF."grn_items SET qty_recd=qty_recd+".-$details_row["quantity"]."
581                                                 WHERE id=".$details_row["grn_item_id"];
582                                         db_query($sql);
583                         }
584                         else
585                         {
586                                         $diff = get_diff_in_home_currency($grn["supplier_id"], $old_date, sql2date($trans['tran_date']), $old[2], 
587                                                 $details_row["FullUnitPrice"]);
588                                         // Only adjust the avg for the diff
589                                         $mat_cost = update_average_material_cost(null, $details_row["stock_id"],
590                                                 $diff, -$details_row["quantity"], $old_date, true);
591                                                 
592                                         //Chaitanya : Reverse effect
593                                         //If QOH is 0 or negative then update_average_material_cost will be skipped
594                                         //Thus difference in PO and Supp Invoice should be handled separately
595                                         
596                                         $qoh = get_qoh_on_date($details_row["stock_id"]);
597                                         if ($diff*$details_row["quantity"] !=0 && $qoh <= 0)
598                                         {
599                                                 global $Refs;
600
601                                                 //Chaitanya : Post a journal entry
602                                                 $id = get_next_trans_no(ST_JOURNAL);
603                                                 $ref = $Refs->get_next(ST_JOURNAL);
604                                                 add_journal(ST_JOURNAL, $id, $details_row["quantity"] * $diff, $old_date, get_company_currency(), $ref);
605                                                 $stock_id = $details_row["stock_id"];
606                                                 $stock_gl_code = get_stock_gl_code($stock_id);
607                                                 $memo = "Reversing Supplier invoice adjustment for zero inventory of ".$stock_id." Invoice: ".$trans['reference'];
608                                                 //Reverse the inventory effect if $qoh <=0
609                                                 add_gl_trans_std_cost(ST_JOURNAL, $id, $old_date, 
610                                                         $stock_gl_code["inventory_account"],
611                                                         $dim, $dim2, $memo, $details_row["quantity"] * $diff);
612                                                 //GL Posting to inventory adjustment account
613                                                 add_gl_trans_std_cost(ST_JOURNAL, $id, $old_date, 
614                                                         $stock_gl_code["adjustment_account"],
615                                                         $dim, $dim2, $memo, -$details_row["quantity"] * $diff);
616                                                 
617                                                 add_audit_trail(ST_JOURNAL, $id, $old_date);
618                                                 add_comments(ST_JOURNAL, $id, $old_date, $memo);
619                                                 $Refs->save(ST_JOURNAL, $id, $ref);
620                                         }
621                                 }
622                 }
623         }
624         }
625
626         if ($type == ST_SUPPCREDIT) // void the credits in stock moves
627                 void_stock_move($type, $type_no); 
628         void_supp_invoice_items($type, $type_no);
629         void_trans_tax_details($type, $type_no);
630
631         commit_transaction();
632 }
633
634 //----------------------------------------------------------------------------------------
635 function get_gl_account_info($acc)
636 {
637         $sql = "SELECT account_code, account_name FROM ".TB_PREF."chart_master WHERE account_code=".db_escape($acc);
638         return db_query($sql,"get account information");
639 }
640
641 function is_reference_already_there($supplier_id, $supp_reference, $trans_no=0)
642 {
643         $sql = "SELECT COUNT(*) FROM ".TB_PREF."supp_trans WHERE supplier_id="
644                 .db_escape($supplier_id) . " AND supp_reference=" 
645                 .db_escape($supp_reference) 
646                 . " AND ov_amount!=0"; // ignore voided invoice references
647         if ($trans_no)
648                 $sql .= " AND trans_no!=$trans_no";
649         $result=db_query($sql,"The sql to check for the previous entry of the same invoice failed");
650
651         $myrow = db_fetch_row($result);
652         return $myrow[0] > 0;
653 }
654
655 function remove_not_invoice_item($id)
656 {
657         begin_transaction();
658
659     $myrow = get_grn_item_detail($id);
660
661     $grn = get_grn_batch($myrow['grn_batch_id']);
662
663     $supp = get_supplier($grn["supplier_id"]);
664
665         $sql = "UPDATE ".TB_PREF."purch_order_details
666                 SET quantity_received = qty_invoiced, quantity_ordered = qty_invoiced WHERE po_detail_item = ".$myrow["po_detail_item"];
667         db_query($sql, "The quantity invoiced of the purchase order line could not be updated");
668
669     $sql = "UPDATE ".TB_PREF."grn_items
670         SET qty_recd = quantity_inv WHERE id = ".$myrow["id"];
671     db_query($sql, "The quantity invoiced off the items received record could not be updated");
672
673     update_average_material_cost($grn["supplier_id"], $myrow["item_code"],
674         $myrow["unit_price"], -$myrow["QtyOstdg"], Today());
675         
676     $price = $myrow['unit_price'];
677     if ($supp['tax_included'])
678         $price = get_tax_free_price_for_item($myrow['item_code'], $myrow['unit_price'], $supp['tax_group_id'], $supp['tax_included']);        
679
680     add_stock_move(ST_SUPPRECEIVE, $myrow["item_code"], $myrow['grn_batch_id'], $grn['loc_code'], sql2date($grn["delivery_date"]), "",
681         -$myrow["QtyOstdg"], $myrow['std_cost_unit'], $grn["supplier_id"], 1, $price);
682         
683     $clearing_act = get_company_pref('grn_clearing_act');
684     if ($clearing_act) {    // otherwise GRN clearing account is not used
685         if (is_inventory_item($myrow['item_code']))
686         {
687             $total = 0;
688             $stock_gl_code = get_stock_gl_code($myrow['item_code']);
689             $date = sql2date($grn["delivery_date"]);
690             $total += add_gl_trans_supplier(ST_SUPPRECEIVE, $myrow['grn_batch_id'], $date, $stock_gl_code["inventory_account"],
691                 $stock_gl_code['dimension_id'], $stock_gl_code['dimension2_id'],
692                 -$myrow['QtyOstdg'] * $price, $grn["supplier_id"], "", 0, _("GRN Removal"));
693             $total += add_gl_trans_supplier(ST_SUPPRECEIVE, $myrow['grn_batch_id'], $date, $clearing_act,
694                 0, 0, -$total, null, "", 0, _("GRN Removal"));
695         }    
696     }
697
698     commit_transaction();
699 }
700
701 function find_src_invoices($cart)
702 {
703         $invoices = $po_ids = array();
704         foreach($cart->grn_items as $item)
705                 $po_ids[] = "'$item->po_detail_item'";  // credit item lines
706
707         if (count($po_ids)) {
708                 $sql = "SELECT DISTINCT trans.trans_no, trans.reference, trans.supp_reference
709                         FROM ".TB_PREF."supp_invoice_items items
710                         LEFT JOIN ".TB_PREF."supp_trans trans ON trans.trans_no=items.supp_trans_no AND trans.`type`=items.supp_trans_type
711                         WHERE items.po_detail_item_id IN (" . implode(',', $po_ids). ")"." AND items.supp_trans_type=20";
712                 $result = db_query($sql, "cannot find source invoice details");
713                 while ($rec = db_fetch($result))
714                 {
715                         $invoices[$rec['trans_no']] = $rec['supp_reference']; // array($rec['reference'], $rec['supp_reference']);
716                 }
717         }
718         return $invoices;
719 }