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() == $currency);
40 //----------------------------------------------------------------------------------
42 function get_company_currency()
44 return get_company_pref('curr_default');
47 //----------------------------------------------------------------------------------
49 function get_bank_account_currency($id)
51 $sql= "SELECT bank_curr_code FROM ".TB_PREF."bank_accounts WHERE id='$id'";
52 $result = db_query($sql, "retreive bank account currency");
54 $myrow = db_fetch_row($result);
58 //----------------------------------------------------------------------------------
60 function get_customer_currency($customer_id)
62 $sql = "SELECT curr_code FROM ".TB_PREF."debtors_master WHERE debtor_no = '$customer_id'";
64 $result = db_query($sql, "Retreive currency of customer $customer_id");
66 $myrow=db_fetch_row($result);
70 //----------------------------------------------------------------------------------
72 function get_supplier_currency($supplier_id)
74 $sql = "SELECT curr_code FROM ".TB_PREF."suppliers WHERE supplier_id = '$supplier_id'";
76 $result = db_query($sql, "Retreive currency of supplier $supplier_id");
78 $myrow=db_fetch_row($result);
82 //----------------------------------------------------------------------------------
84 function get_exchange_rate_from_home_currency($currency_code, $date_)
86 if ($currency_code == get_company_currency() || $currency_code == null)
89 $date = date2sql($date_);
91 $sql = "SELECT rate_buy, max(date_) as date_ FROM ".TB_PREF."exchange_rates WHERE curr_code = '$currency_code'
92 AND date_ <= '$date' GROUP BY rate_buy ORDER BY date_ Desc LIMIT 1";
94 $result = db_query($sql, "could not query exchange rates");
96 if (db_num_rows($result) == 0)
98 // no stored exchange rate, just return 1
100 sprintf(_("Cannot retrieve exchange rate for currency %s as of %s. Please add exchange rate manually on Exchange Rates page."),
101 $currency_code, $date_));
105 $myrow = db_fetch_row($result);
109 //----------------------------------------------------------------------------------
111 function get_exchange_rate_to_home_currency($currency_code, $date_)
113 return 1 / get_exchange_rate_from_home_currency($currency_code, $date_);
116 //----------------------------------------------------------------------------------
118 function to_home_currency($amount, $currency_code, $date_)
120 $ex_rate = get_exchange_rate_to_home_currency($currency_code, $date_);
121 return round2($amount / $ex_rate, user_price_dec());
124 //----------------------------------------------------------------------------------
126 function get_exchange_rate_from_to($from_curr_code, $to_curr_code, $date_)
128 // echo "converting from $from_curr_code to $to_curr_code <BR>";
129 if ($from_curr_code == $to_curr_code)
132 $home_currency = get_company_currency();
133 if ($to_curr_code == $home_currency)
135 return get_exchange_rate_to_home_currency($from_curr_code, $date_);
138 if ($from_curr_code == $home_currency)
140 return get_exchange_rate_from_home_currency($to_curr_code, $date_);
143 // neither from or to are the home currency
144 return get_exchange_rate_to_home_currency($from_curr_code, $date_) / get_exchange_rate_to_home_currency($to_curr_code, $date_);
147 //--------------------------------------------------------------------------------
149 function exchange_from_to($amount, $from_curr_code, $to_curr_code, $date_)
151 $ex_rate = get_exchange_rate_from_to($from_curr_code, $to_curr_code, $date_);
152 return $amount / $ex_rate;
155 //--------------------------------------------------------------------------------
156 // Exchange Variations Joe Hunt 2008-09-20 ////////////////////////////////////////
158 function exchange_variation($pyt_type, $pyt_no, $type, $trans_no, $pyt_date, $amount, $person_type, $neg=false)
160 global $systypes_array;
162 if ($person_type == PT_CUSTOMER)
164 $trans = get_customer_trans($trans_no, $type);
165 $pyt_trans = get_customer_trans($pyt_no, $pyt_type);
166 $ar_ap_act = $trans['receivables_account'];
167 $person_id = $trans['debtor_no'];
168 $curr = $trans['curr_code'];
169 $date = sql2date($trans['tran_date']);
173 $trans = get_supp_trans($trans_no, $type);
174 $pyt_trans = get_supp_trans($pyt_no, $pyt_type);
175 $supp_accs = get_supplier_accounts($trans['supplier_id']);
176 $ar_ap_act = $supp_accs['payable_account'];
177 $person_id = $trans['supplier_id'];
178 $curr = $trans['SupplierCurrCode'];
179 $date = sql2date($trans['tran_date']);
181 if (is_company_currency($curr))
183 $inv_amt = round2($amount * $trans['rate'], user_price_dec());
184 $pay_amt = round2($amount * $pyt_trans['rate'], user_price_dec());
185 if ($inv_amt != $pay_amt)
187 $diff = $inv_amt - $pay_amt;
188 if ($person_type == PT_SUPPLIER)
192 $exc_var_act = get_company_pref('exchange_diff_act');
193 if (date1_greater_date2($date, $pyt_date))
195 $memo = $systypes_array[$pyt_type]." ".$pyt_no;
196 add_gl_trans($type, $trans_no, $date, $ar_ap_act, 0, 0, $memo, -$diff, null, $person_type, $person_id);
197 add_gl_trans($type, $trans_no, $date, $exc_var_act, 0, 0, $memo, $diff, null, $person_type, $person_id);
201 $memo = $systypes_array[$type]." ".$trans_no;
202 add_gl_trans($pyt_type, $pyt_no, $pyt_date, $ar_ap_act, 0, 0, $memo, -$diff, null, $person_type, $person_id);
203 add_gl_trans($pyt_type, $pyt_no, $pyt_date, $exc_var_act, 0, 0, $memo, $diff, null, $person_type, $person_id);