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($path_to_root . "/gl/includes/gl_db.inc");
14 //----------------------------------------------------------------------------------
15 // Check if given account is used by any bank_account.
16 // Returns id of first bank_account using account_code, null otherwise.
18 // Keep in mind that direct posting to bank account is depreciated
19 // because we have no way to select right bank account if
20 // there is more than one using given gl account.
22 function is_bank_account($account_code)
24 $sql= "SELECT id FROM ".TB_PREF."bank_accounts WHERE account_code='$account_code'";
25 $result = db_query($sql, "checking account is bank account");
26 if (db_num_rows($result) > 0) {
27 $acct = db_fetch($result);
33 //----------------------------------------------------------------------------------
35 function is_company_currency($currency)
37 return (get_company_currency() == $currency);
40 //----------------------------------------------------------------------------------
42 function get_company_currency()
44 $sql= "SELECT curr_default FROM ".TB_PREF."company";
45 $result = db_query($sql, "retreive company currency");
47 if (db_num_rows($result) == 0)
48 display_db_error("Could not find the requested currency. Fatal.", $sql);
50 $myrow = db_fetch_row($result);
54 //----------------------------------------------------------------------------------
56 function get_bank_account_currency($id)
58 $sql= "SELECT bank_curr_code FROM ".TB_PREF."bank_accounts WHERE id='$id'";
59 $result = db_query($sql, "retreive bank account currency");
61 $myrow = db_fetch_row($result);
65 //----------------------------------------------------------------------------------
67 function get_customer_currency($customer_id)
69 $sql = "SELECT curr_code FROM ".TB_PREF."debtors_master WHERE debtor_no = '$customer_id'";
71 $result = db_query($sql, "Retreive currency of customer $customer_id");
73 $myrow=db_fetch_row($result);
77 //----------------------------------------------------------------------------------
79 function get_supplier_currency($supplier_id)
81 $sql = "SELECT curr_code FROM ".TB_PREF."suppliers WHERE supplier_id = '$supplier_id'";
83 $result = db_query($sql, "Retreive currency of supplier $supplier_id");
85 $myrow=db_fetch_row($result);
89 //----------------------------------------------------------------------------------
91 function get_exchange_rate_from_home_currency($currency_code, $date_)
93 if ($currency_code == get_company_currency())
96 $date = date2sql($date_);
98 $sql = "SELECT rate_buy, max(date_) as date_ FROM ".TB_PREF."exchange_rates WHERE curr_code = '$currency_code'
99 AND date_ <= '$date' GROUP BY rate_buy ORDER BY date_ Desc LIMIT 1";
101 $result = db_query($sql, "could not query exchange rates");
103 if (db_num_rows($result) == 0)
105 // no stored exchange rate, just return 1
107 sprintf(_("Cannot retrieve exchange rate for currency %s as of %s. Please add exchange rate manually on Exchange Rates page."),
108 $currency_code, $date_));
112 $myrow = db_fetch_row($result);
116 //----------------------------------------------------------------------------------
118 function get_exchange_rate_to_home_currency($currency_code, $date_)
120 return 1 / get_exchange_rate_from_home_currency($currency_code, $date_);
123 //----------------------------------------------------------------------------------
125 function to_home_currency($amount, $currency_code, $date_)
127 $ex_rate = get_exchange_rate_to_home_currency($currency_code, $date_);
128 return round2($amount / $ex_rate, user_price_dec());
131 //----------------------------------------------------------------------------------
133 function get_exchange_rate_from_to($from_curr_code, $to_curr_code, $date_)
135 // echo "converting from $from_curr_code to $to_curr_code <BR>";
136 if ($from_curr_code == $to_curr_code)
139 $home_currency = get_company_currency();
140 if ($to_curr_code == $home_currency)
142 return get_exchange_rate_to_home_currency($from_curr_code, $date_);
145 if ($from_curr_code == $home_currency)
147 return get_exchange_rate_from_home_currency($to_curr_code, $date_);
150 // neither from or to are the home currency
151 return get_exchange_rate_to_home_currency($from_curr_code, $date_) / get_exchange_rate_to_home_currency($to_curr_code, $date_);
154 //--------------------------------------------------------------------------------
156 function exchange_from_to($amount, $from_curr_code, $to_curr_code, $date_)
158 $ex_rate = get_exchange_rate_from_to($from_curr_code, $to_curr_code, $date_);
159 return $amount / $ex_rate;
162 //--------------------------------------------------------------------------------
163 // Exchange Variations Joe Hunt 2008-09-20 ////////////////////////////////////////
165 function exchange_variation($pyt_type, $pyt_no, $type, $trans_no, $pyt_date, $amount, $person_type, $neg=false)
167 global $systypes_array;
169 if ($person_type == PT_CUSTOMER)
171 $trans = get_customer_trans($trans_no, $type);
172 $pyt_trans = get_customer_trans($pyt_no, $pyt_type);
173 $ar_ap_act = $trans['receivables_account'];
174 $person_id = $trans['debtor_no'];
175 $curr = $trans['curr_code'];
176 $date = sql2date($trans['tran_date']);
180 $trans = get_supp_trans($trans_no, $type);
181 $pyt_trans = get_supp_trans($pyt_no, $pyt_type);
182 $supp_accs = get_supplier_accounts($trans['supplier_id']);
183 $ar_ap_act = $supp_accs['payable_account'];
184 $person_id = $trans['supplier_id'];
185 $curr = $trans['SupplierCurrCode'];
186 $date = sql2date($trans['tran_date']);
188 if (is_company_currency($curr))
190 $inv_amt = round2($amount * $trans['rate'], user_price_dec());
191 $pay_amt = round2($amount * $pyt_trans['rate'], user_price_dec());
192 if ($inv_amt != $pay_amt)
194 $diff = $inv_amt - $pay_amt;
195 if ($person_type == PT_SUPPLIER)
199 $exc_var_act = get_company_pref('exchange_diff_act');
200 if (date1_greater_date2($date, $pyt_date))
202 $memo = $systypes_array[$pyt_type]." ".$pyt_no;
203 add_gl_trans($type, $trans_no, $date, $ar_ap_act, 0, 0, $memo, -$diff, null, $person_type, $person_id);
204 add_gl_trans($type, $trans_no, $date, $exc_var_act, 0, 0, $memo, $diff, null, $person_type, $person_id);
208 $memo = $systypes_array[$type]." ".$trans_no;
209 add_gl_trans($pyt_type, $pyt_no, $pyt_date, $ar_ap_act, 0, 0, $memo, -$diff, null, $person_type, $person_id);
210 add_gl_trans($pyt_type, $pyt_no, $pyt_date, $exc_var_act, 0, 0, $memo, $diff, null, $person_type, $person_id);