Added db_write/db_void hooks.
[fa-stable.git] / gl / includes / db / gl_db_banking.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 function add_exchange_variation($trans_no, $date_, $acc_id, $account,
13     $currency, $person_type_id=null, $person_id = "")
14 {
15         if (is_company_currency($currency))
16                 return false;
17         if ($date_ == null)
18                 $date_ = Today();
19         $for_amount = 0;
20
21         // We have to calculate all the currency accounts belonging to the GL account
22         // upto $date_ and calculate with the exchange rates. And then compare with the GL account balance.
23         // 2010-02-23 Joe Hunt with help of Ary Wibowo
24         $sql = "SELECT SUM(bt.amount) AS for_amount, ba.bank_curr_code          
25                 FROM ".TB_PREF."bank_trans bt, ".TB_PREF."bank_accounts ba
26                 WHERE ba.id = bt.bank_act AND ba.account_code = ".db_escape($account)." AND bt.trans_date<='".date2sql($date_)."'
27                 GROUP BY ba.bank_curr_code";    
28         $result = db_query($sql, "Transactions for bank account $acc_id could not be calculated");
29         while ($row = db_fetch($result))
30         {
31                 if ($row['for_amount'] == 0)
32                         continue;
33                 $rate = get_exchange_rate_from_home_currency($row['bank_curr_code'], $date_);
34                 $for_amount += round2($row['for_amount'] * $rate, user_price_dec());
35         }       
36         $amount = get_gl_trans_from_to("", $date_, $account);
37         $diff = $amount - $for_amount;
38         if ($diff != 0)
39         {
40                 if ($trans_no == null)
41                         $trans_no = get_next_trans_no(ST_JOURNAL);
42                 if ($person_type_id == null)
43                         $person_type_id = PT_MISC;
44                 add_gl_trans(ST_JOURNAL, $trans_no, $date_, $account, 0, 0, _("Exchange Variance"),
45                 -$diff, null, $person_type_id, $person_id);
46         add_gl_trans(ST_JOURNAL, $trans_no, $date_, get_company_pref('exchange_diff_act'), 0, 0, 
47                 _("Exchange Variance"), $diff, null, $person_type_id, $person_id);
48         }
49         return ($diff != 0);
50 }
51
52 function add_exchange_variation_all($date=null, $ref="", $memo)
53 {
54         global $Refs;
55         begin_transaction();
56         $exchanged = false;
57         $trans_no = get_next_trans_no(ST_JOURNAL);
58         $sql = "SELECT * FROM ".TB_PREF."bank_accounts";
59         $result = db_query($sql, "could not retreive bank accounts");
60         while ($myrow = db_fetch($result))
61         {
62                 if (add_exchange_variation($trans_no, $date, $myrow['id'], $myrow['account_code'],
63                         $myrow['bank_curr_code']))
64                         $exchanged = true;
65         }
66         if ($exchanged)
67         {
68                 add_comments(ST_JOURNAL, $trans_no, $date, $memo);
69                 if ($ref == "")
70                         $ref = $Refs->get_next(ST_JOURNAL);
71                 $Refs->save(ST_JOURNAL, $trans_no, $ref);
72                 add_audit_trail(ST_JOURNAL, $trans_no, $date);
73         }       
74         commit_transaction();
75         return ($exchanged ? $trans_no : 0);
76 }
77 //----------------------------------------------------------------------------------
78 //      Add bank tranfer to database.
79 //
80 //      $from_account - source bank account id
81 //      $to_account   - target bank account id
82 //      
83
84 function add_bank_transfer($from_account, $to_account, $date_,
85         $amount, $ref, $memo_, $charge=0)
86 {
87         global $Refs, $SysPrefs;
88         
89         begin_transaction();
90         $args = func_get_args(); if (count($args) < 7) $args[] = 0;
91         $args = (object)array_combine(array('from_account', 'to_account', 'date_', 'amount',
92                 'ref', 'memo_', 'charge'), $args);
93         $args->trans_no = 0;
94         hook_db_prewrite($args, ST_BANKTRANSFER);
95
96         $trans_type = ST_BANKTRANSFER;
97
98         $currency = get_bank_account_currency($from_account);
99
100         $trans_no = get_next_trans_no($trans_type);
101         
102     $fromact = get_bank_account($from_account);
103     $toact = get_bank_account($to_account);
104     $person_id = _("From")." ".$fromact['bank_account_name']." "._("To")." ".$toact['bank_account_name'];
105
106         $from_gl_account = get_bank_gl_account($from_account);
107         $to_gl_account = get_bank_gl_account($to_account);
108         
109         $exchanged = false;
110         $total = 0;
111         // do the source account postings
112     $total += add_gl_trans($trans_type, $trans_no, $date_, $from_gl_account, 0, 0, $person_id,
113                 -($amount + $charge), $currency);
114
115     add_bank_trans($trans_type, $trans_no, $from_account, $ref,
116                 $date_, -($amount + $charge),
117                 PT_MISC, $person_id, $currency,
118                 "Cannot insert a source bank transaction");
119         if ($SysPrefs->auto_currency_revaluation())
120         {
121                 $trans_no1 = get_next_trans_no(ST_JOURNAL);
122                 if (add_exchange_variation($trans_no1, $date_, $from_account, $from_gl_account, 
123                         $currency, PT_MISC, $person_id))
124                         $exchanged = true;
125         }
126         if ($charge != 0)
127         {
128                 /* Now Debit bank charge account with charges */
129                 $charge_act = get_company_pref('bank_charge_act');
130                 $total += add_gl_trans($trans_type, $trans_no, $date_,
131                         $charge_act, 0, 0, $person_id, $charge, $currency);
132         }
133         // do the destination account postings
134         $total += add_gl_trans($trans_type, $trans_no, $date_, $to_gl_account, 0, 0, $person_id,
135                 $amount, $currency);
136                 
137         /*Post a balance post if $total != 0 */
138         add_gl_balance($trans_type, $trans_no, $date_, -$total);        
139         
140         add_bank_trans($trans_type, $trans_no, $to_account, $ref,
141                 $date_, $amount, PT_MISC, $person_id,
142                 $currency, "Cannot insert a destination bank transaction");
143
144         if ($SysPrefs->auto_currency_revaluation())
145         {
146                 $currency = get_bank_account_currency($to_account);
147         
148                 if ($exchanged || add_exchange_variation($trans_no1, $date_, $to_account, $to_gl_account,       
149                         $currency, PT_MISC, $person_id))
150                 {
151                         $ref1 = $Refs->get_next(ST_JOURNAL);
152                         $Refs->save(ST_JOURNAL, $trans_no1, $ref1);
153                         add_audit_trail(ST_JOURNAL, $trans_no1, $date_);
154                 }       
155         }
156         add_comments($trans_type, $trans_no, $date_, $memo_);
157
158         $Refs->save($trans_type, $trans_no, $ref);
159         add_audit_trail($trans_type, $trans_no, $date_);
160
161         $args->trans_no = $trans_no;
162         hook_db_postwrite($args, ST_BANKTRANSFER);
163         commit_transaction();
164
165         return $trans_no;
166 }
167 //----------------------------------------------------------------------------------
168 //      Add bank payment or deposit to database.
169 //
170 //      $from_account - bank account id
171 //  $item - transaction cart (line item's amounts in bank account's currency)
172 //  $person_type_id - defines type of $person_id identifiers
173 //  $person_id  - supplier/customer/other id
174 // $person_detail_id - customer branch id or not used
175 //
176 // returns an array of (inserted trans type, trans no)
177 //
178 // FIXME -revise code for update case
179 //
180 function write_bank_transaction($trans_type, $trans_no, $from_account, $items, $date_,
181         $person_type_id, $person_id, $person_detail_id, $ref, $memo_, $use_transaction=true)
182 {
183         global $Refs, $SysPrefs;
184
185         // we can only handle type 1 (payment)and type 2 (deposit)
186         if ($trans_type != ST_BANKPAYMENT && $trans_type != ST_BANKDEPOSIT)
187                 display_db_error("Invalid type ($trans_type) sent to add_bank_transaction");
188
189         $do_exchange_variance = false;
190         $exchanged = false;
191         if ($use_transaction)
192                 begin_transaction();
193
194         $args = func_get_args(); if (count($args) < 11) $args[] = true;
195         $args = (object)array_combine(array('trans_type', 'trans_no', 'from_account', 'items', 'date_',
196                 'person_type_id', 'person_id', 'person_detail_id', 'ref', 'memo_', 'use_transaction'),
197                 $args);
198         hook_db_prewrite($args, $trans_type);
199
200         if ($trans_no)
201                 clear_bank_transaction($_SESSION['pay_items']->trans_type, $_SESSION['pay_items']->order_id);
202
203         $currency = get_bank_account_currency($from_account);
204         $bank_gl_account = get_bank_gl_account($from_account);
205
206         // the gl items are already inversed/negated for type 2 (deposit)
207         $total_amount = $items->gl_items_total();
208
209     if ($person_type_id == PT_CUSTOMER)
210     {
211         // we need to add a customer transaction record
212
213                 // convert to customer currency
214                 $cust_amount = exchange_from_to($total_amount, $currency, get_customer_currency($person_id), $date_);
215                 // we need to negate it too
216                 $cust_amount = -$cust_amount;
217
218                 $trans_no = write_customer_trans($trans_type, $trans_no, $person_id, $person_detail_id, $date_,
219                 $ref, $cust_amount);
220
221     }
222     elseif ($person_type_id == PT_SUPPLIER)
223     {
224         // we need to add a supplier transaction record
225                 // convert to supp currency
226                 $supp_amount = exchange_from_to($total_amount, $currency, get_supplier_currency($person_id), $date_);
227
228                 // we need to negate it too
229                 $supp_amount = -$supp_amount;
230
231                 $trans_no = write_supp_trans($trans_type, $trans_no, $person_id, $date_, '',
232                         $ref, "", $supp_amount, 0, 0);
233
234     }
235     else
236     {
237         if (!$trans_no)
238                 $trans_no = get_next_trans_no($trans_type);
239         $do_exchange_variance = $SysPrefs->auto_currency_revaluation();
240         if ($do_exchange_variance)
241                 $trans_no1 = get_next_trans_no(ST_JOURNAL);
242     }
243
244         // do the source account postings
245
246     add_bank_trans($trans_type, $trans_no, $from_account, $ref,
247         $date_, -$total_amount,
248         $person_type_id, $person_id,
249         $currency,
250         "Cannot insert a source bank transaction");
251         $total = 0;
252         foreach ($items->gl_items as $gl_item)
253         {
254                 $is_bank_to = is_bank_account($gl_item->code_id);
255
256                 if ($trans_type == ST_BANKPAYMENT AND $is_bank_to)
257                 {
258                         // we don't allow payments to go to a bank account. use transfer for this !
259                         display_db_error("invalid payment entered. Cannot pay to another bank account", "");
260                 }
261
262         // do the destination account postings
263         $total += add_gl_trans($trans_type, $trans_no, $date_, $gl_item->code_id,
264                 $gl_item->dimension_id, $gl_item->dimension2_id, $gl_item->reference,
265                 $gl_item->amount, $currency, $person_type_id, $person_id);
266
267         if ($is_bank_to)
268         {
269                 add_bank_trans($trans_type, $trans_no, $is_bank_to, $ref,
270                         $date_, $gl_item->amount,
271                         $person_type_id, $person_id, $currency,
272                         "Cannot insert a destination bank transaction");
273                 if ($do_exchange_variance)
274                 {
275                         add_exchange_variation($trans_no1, $date_, $is_bank_to, $gl_item->code_id, 
276                                 $currency, $person_type_id, $person_id);
277                 }               
278         }
279                 // store tax details if the gl account is a tax account
280
281                 $amount = $gl_item->amount;
282                 $ex_rate = get_exchange_rate_from_home_currency($currency, $date_);
283                         
284                 add_gl_tax_details($gl_item->code_id, $trans_type, $trans_no, -$amount,
285                         $ex_rate, $date_, $memo_);
286         }
287
288         // do the source account postings
289     add_gl_trans($trans_type, $trans_no, $date_, $bank_gl_account, 0, 0, $memo_,
290         -$total, null, $person_type_id, $person_id);
291
292     if ($do_exchange_variance)
293     {
294         if ($exchanged || add_exchange_variation($trans_no1, $date_, $from_account, $bank_gl_account, 
295                 $currency, $person_type_id, $person_id))
296         {       
297                         $ref1 = $Refs->get_next(ST_JOURNAL);
298                         $Refs->save(ST_JOURNAL, $trans_no1, $ref1);
299                         add_audit_trail(ST_JOURNAL, $trans_no1, $date_);
300                 }       
301         }
302
303         add_comments($trans_type, $trans_no, $date_, $memo_);
304
305         $Refs->save($trans_type, $trans_no, $ref);
306         add_audit_trail($trans_type, $trans_no, $date_);
307
308         $args->trans_no = $trans_no;
309         hook_db_postwrite($args, $trans_type);
310         if ($use_transaction)
311                 commit_transaction();
312
313         return array($trans_type, $trans_no);
314 }
315 //----------------------------------------------------------------------------------------
316
317 function clear_bank_transaction($type, $type_no)
318 {
319
320         hook_db_prevoid($type, $type_no);
321
322         $sql = "DELETE FROM ".TB_PREF."bank_trans 
323                 WHERE type=".db_escape($type)." AND trans_no=".db_escape($type_no);
324
325         $result = db_query($sql, "could not clear bank transactions for type=$type and trans_no=$type_no");
326
327         clear_gl_trans($type, $type_no, true);
328
329         // in case it's a customer trans - probably better to check first
330         void_cust_allocations($type, $type_no);
331
332         // in case it's a supplier trans - probably better to check first
333         void_supp_allocations($type, $type_no);
334         clear_supp_trans($type, $type_no);
335
336         clear_trans_tax_details($type, $type_no);
337
338         delete_comments($type, $type_no);
339 }
340
341 ?>