includes/banking.inc

   1 <?php
   2
   3 include_once($path_to_root . "/gl/includes/gl_db.inc");
   4
   5 //----------------------------------------------------------------------------------
   6 //      Check if given account is used by any bank_account.
   7 //      Returns id of first bank_account using account_code, null otherwise.
   8 //
   9 //      Keep in mind that direct posting to bank account is depreciated
  10 //      because we have no way to select right bank account if
  11 //      there is more than one using given gl account.
  12 //
  13 function is_bank_account($account_code)
  14 {
  15         $sql= "SELECT id FROM ".TB_PREF."bank_accounts WHERE account_code='$account_code'";
  16         $result = db_query($sql, "checking account is bank account");
  17         if (db_num_rows($result) > 0) {
  18                 $acct = db_fetch($result);
  19                 return $acct['id'];
  20         } else
  21                 return false;
  22 }
  23
  24 //----------------------------------------------------------------------------------
  25
  26 function is_company_currency($currency)
  27 {
  28         return (get_company_currency() == $currency);
  29 }
  30
  31 //----------------------------------------------------------------------------------
  32
  33 function get_company_currency()
  34 {
  35         $sql= "SELECT curr_default FROM ".TB_PREF."company";
  36         $result = db_query($sql, "retreive company currency");
  37
  38         if (db_num_rows($result) == 0)
  39                 display_db_error("Could not find the requested currency. Fatal.", $sql);
  40
  41         $myrow = db_fetch_row($result);
  42         return $myrow[0];
  43 }
  44
  45 //----------------------------------------------------------------------------------
  46
  47 function get_bank_account_currency($id)
  48 {
  49         $sql= "SELECT bank_curr_code FROM ".TB_PREF."bank_accounts WHERE id='$id'";
  50         $result = db_query($sql, "retreive bank account currency");
  51
  52         $myrow = db_fetch_row($result);
  53         return $myrow[0];
  54 }
  55
  56 //----------------------------------------------------------------------------------
  57
  58 function get_customer_currency($customer_id)
  59 {
  60     $sql = "SELECT curr_code FROM ".TB_PREF."debtors_master WHERE debtor_no = '$customer_id'";
  61
  62         $result = db_query($sql, "Retreive currency of customer $customer_id");
  63
  64         $myrow=db_fetch_row($result);
  65         return $myrow[0];
  66 }
  67
  68 //----------------------------------------------------------------------------------
  69
  70 function get_supplier_currency($supplier_id)
  71 {
  72     $sql = "SELECT curr_code FROM ".TB_PREF."suppliers WHERE supplier_id = '$supplier_id'";
  73
  74         $result = db_query($sql, "Retreive currency of supplier $supplier_id");
  75
  76         $myrow=db_fetch_row($result);
  77         return $myrow[0];
  78 }
  79
  80 //----------------------------------------------------------------------------------
  81
  82 function get_exchange_rate_from_home_currency($currency_code, $date_)
  83 {
  84         if ($currency_code == get_company_currency())
  85                 return 1.0000;
  86
  87         $date = date2sql($date_);
  88
  89         $sql = "SELECT rate_buy, max(date_) as date_ FROM ".TB_PREF."exchange_rates WHERE curr_code = '$currency_code'
  90                                 AND date_ <= '$date' GROUP BY rate_buy ORDER BY date_ Desc LIMIT 1";
  91
  92         $result = db_query($sql, "could not query exchange rates");
  93
  94         if (db_num_rows($result) == 0)
  95         {
  96                 // no stored exchange rate, just return 1
  97                 display_error(
  98                         sprintf(_("Cannot retrieve exchange rate for currency %s as of %s. Please add exchange rate manually on Exchange Rates page."),
  99                                  $currency_code, $date_));
 100                 return 1.000;
 101         }
 102
 103         $myrow = db_fetch_row($result);
 104         return $myrow[0];
 105 }
 106
 107 //----------------------------------------------------------------------------------
 108
 109 function get_exchange_rate_to_home_currency($currency_code, $date_)
 110 {
 111         return 1 / get_exchange_rate_from_home_currency($currency_code, $date_);
 112 }
 113
 114 //----------------------------------------------------------------------------------
 115
 116 function to_home_currency($amount, $currency_code, $date_)
 117 {
 118         $ex_rate = get_exchange_rate_to_home_currency($currency_code, $date_);
 119         return round2($amount / $ex_rate,  user_price_dec());
 120 }
 121
 122 //----------------------------------------------------------------------------------
 123
 124 function get_exchange_rate_from_to($from_curr_code, $to_curr_code, $date_)
 125 {
 126 //      echo "converting from $from_curr_code to $to_curr_code <BR>";
 127         if ($from_curr_code == $to_curr_code)
 128                 return 1.0000;
 129
 130         $home_currency = get_company_currency();
 131         if ($to_curr_code == $home_currency)
 132         {
 133                 return get_exchange_rate_to_home_currency($from_curr_code, $date_);
 134         }
 135
 136         if ($from_curr_code == $home_currency)
 137         {
 138                 return get_exchange_rate_from_home_currency($to_curr_code, $date_);
 139         }
 140
 141         // neither from or to are the home currency
 142          return get_exchange_rate_to_home_currency($from_curr_code, $date_) / get_exchange_rate_to_home_currency($to_curr_code, $date_);
 143 }
 144
 145 //--------------------------------------------------------------------------------
 146
 147 function exchange_from_to($amount, $from_curr_code, $to_curr_code, $date_)
 148 {
 149         $ex_rate = get_exchange_rate_from_to($from_curr_code, $to_curr_code, $date_);
 150         return $amount / $ex_rate;
 151 }
 152
 153 //--------------------------------------------------------------------------------
 154 // Exchange Variations Joe Hunt 2008-09-20 ////////////////////////////////////////
 155
 156 function exchange_variation($pyt_type, $pyt_no, $type, $trans_no, $pyt_date, $amount, $person_type, $neg=false)
 157 {
 158         if ($person_type == payment_person_types::customer())
 159         {
 160                 $trans = get_customer_trans($trans_no, $type);
 161                 $pyt_trans = get_customer_trans($pyt_no, $pyt_type);
 162                 $ar_ap_act = $trans['receivables_account'];
 163                 $person_id = $trans['debtor_no'];
 164                 $curr = $trans['curr_code'];
 165         }
 166         else
 167         {
 168                 $trans = get_supp_trans($trans_no, $type);
 169                 $pyt_trans = get_supp_trans($pyt_no, $pyt_type);
 170                 $supp_accs = get_supplier_accounts($trans['supplier_id']);
 171                 $ar_ap_act = $supp_accs['payable_account'];
 172                 $person_id = $trans['supplier_id'];
 173                 $curr = $trans['SupplierCurrCode'];
 174         }
 175         if (is_company_currency($curr))
 176                 return;
 177         $inv_amt = round2($amount * $trans['rate'], user_price_dec());
 178         $pay_amt = round2($amount * $pyt_trans['rate'], user_price_dec());
 179         if ($inv_amt != $pay_amt)
 180         {
 181                 $diff = $inv_amt - $pay_amt;
 182                 if ($person_type == payment_person_types::supplier())
 183                         $diff = -$diff;
 184                 if ($neg)
 185                         $diff = -$diff;
 186                 $exc_var_act = get_company_pref('exchange_diff_act');
 187                 $memo = systypes::name($type)." ".$trans_no;
 188                 add_gl_trans($pyt_type, $pyt_no, $pyt_date, $ar_ap_act, 0, 0, $memo, -$diff, null, $person_type, $person_id);
 189                 add_gl_trans($pyt_type, $pyt_no, $pyt_date, $exc_var_act, 0, 0, $memo, $diff, null, $person_type, $person_id);
 190         }
 191 }
 192
 193 ?>