functions_prices.php

Zen Cart是一款最新的购物车软件

          // compute attribute amount
          if ($attributes_amount != 0) {
            $calc = ($attributes_amount * $special_price_discount);
//            $calc2 = $calc - ($calc * $sale_maker_discount);
//            $sale_maker_discount = $calc - $calc2;
            $sale_maker_discount = $calc;
          } else {
            $sale_maker_discount = $sale_maker_discount;
          }
        }
        break;
// EOF: percentage discounts skip specials

// BOF: flat amount discounts
      case ($discount_type_id == 20):
        // flat amount discount Sale and Special without a special
        if (!$attributes_id) {
          $sale_maker_discount = $sale_maker_discount;
        } else {
          // compute attribute amount
          if ($attributes_amount != 0) {
            $calc = ($attributes_amount - $sale_maker_discount);
            $sale_maker_discount = $calc;
          } else {
            $sale_maker_discount = $sale_maker_discount;
          }
        }
        break;
      case ($discount_type_id == 209):
        // flat amount discount on Sale and Special with a special
        if (!$attributes_id) {
          $sale_maker_discount = $sale_maker_discount;
        } else {
          // compute attribute amount
          if ($attributes_amount != 0) {
            $calc = ($attributes_amount * $special_price_discount);
            $calc2 = ($calc - $sale_maker_discount);
            $sale_maker_discount = $calc2;
          } else {
            $sale_maker_discount = $sale_maker_discount;
          }
        }
        break;
// EOF: flat amount discounts

// BOF: flat amount discounts Skip Special
      case ($discount_type_id == 10):
        // flat amount discount Sale and Special without a special
        if (!$attributes_id) {
          $sale_maker_discount = $sale_maker_discount;
        } else {
          // compute attribute amount
          if ($attributes_amount != 0) {
            $calc = ($attributes_amount - $sale_maker_discount);
            $sale_maker_discount = $calc;
          } else {
            $sale_maker_discount = $sale_maker_discount;
          }
        }
        break;
      case ($discount_type_id == 109):
        // flat amount discount on Sale and Special with a special
        if (!$attributes_id) {
          $sale_maker_discount = 1;
        } else {
          // compute attribute amount based on Special
          if ($attributes_amount != 0) {
            $calc = ($attributes_amount * $special_price_discount);
            $sale_maker_discount = $calc;
          } else {
            $sale_maker_discount = $sale_maker_discount;
          }
        }
        break;
// EOF: flat amount discounts Skip Special

// BOF: New Price amount discounts
      case ($discount_type_id == 220):
        // New Price amount discount Sale and Special without a special
        if (!$attributes_id) {
          $sale_maker_discount = $sale_maker_discount;
        } else {
          // compute attribute amount
          if ($attributes_amount != 0) {
            $calc = ($attributes_amount * $special_price_discount);
            $sale_maker_discount = $calc;
//echo '<br />attr ' . $attributes_amount . ' spec ' . $special_price_discount . ' Calc ' . $calc . 'Calc2 ' . $calc2 . '<br />';
          } else {
            $sale_maker_discount = $sale_maker_discount;
          }
        }
        break;
      case ($discount_type_id == 2209):
        // New Price amount discount on Sale and Special with a special
        if (!$attributes_id) {
//          $sale_maker_discount = $sale_maker_discount;
          $sale_maker_discount = $sale_maker_discount;
        } else {
          // compute attribute amount
          if ($attributes_amount != 0) {
            $calc = ($attributes_amount * $special_price_discount);
//echo '<br />attr ' . $attributes_amount . ' spec ' . $special_price_discount . ' Calc ' . $calc . 'Calc2 ' . $calc2 . '<br />';
            $sale_maker_discount = $calc;
          } else {
            $sale_maker_discount = $sale_maker_discount;
          }
        }
        break;
// EOF: New Price amount discounts

// BOF: New Price amount discounts - Skip Special
      case ($discount_type_id == 210):
        // New Price amount discount Sale and Special without a special
        if (!$attributes_id) {
          $sale_maker_discount = $sale_maker_discount;
        } else {
          // compute attribute amount
          if ($attributes_amount != 0) {
            $calc = ($attributes_amount * $special_price_discount);
            $sale_maker_discount = $calc;
//echo '<br />attr ' . $attributes_amount . ' spec ' . $special_price_discount . ' Calc ' . $calc . 'Calc2 ' . $calc2 . '<br />';
          } else {
            $sale_maker_discount = $sale_maker_discount;
          }
        }
        break;
      case ($discount_type_id == 2109):
        // New Price amount discount on Sale and Special with a special
        if (!$attributes_id) {
//          $sale_maker_discount = $sale_maker_discount;
          $sale_maker_discount = $sale_maker_discount;
        } else {
          // compute attribute amount
          if ($attributes_amount != 0) {
            $calc = ($attributes_amount * $special_price_discount);
//echo '<br />attr ' . $attributes_amount . ' spec ' . $special_price_discount . ' Calc ' . $calc . 'Calc2 ' . $calc2 . '<br />';
            $sale_maker_discount = $calc;
          } else {
            $sale_maker_discount = $sale_maker_discount;
          }
        }
        break;
// EOF: New Price amount discounts - Skip Special

      case ($discount_type_id == 0 or $discount_type_id == 9):
      // flat discount
        return $sale_maker_discount;
        break;
      default:
        $sale_maker_discount = 7000;
        break;
    }

    return $sale_maker_discount;
  }

////
// look up discount in sale makers - attributes only can have discounts if set as percentages
// this gets the discount amount this does not determin when to apply the discount
  function zen_get_products_sale_discount_type($product_id = false, $categories_id = false, $return_value = false) {
    global $currencies;
    global $db;

/*

0 = flat amount off base price with a special
1 = Percentage off base price with a special
2 = New Price with a special

5 = No Sale or Skip Products with Special

special options + option * 10
0 = Ignore special and apply to Price
1 = Skip Products with Specials switch to 5
2 = Apply to Special Price

If a special exist * 10+9

0*100 + 0*10 = flat apply to price = 0 or 9
0*100 + 1*10 = flat skip Specials = 5 or 59
0*100 + 2*10 = flat apply to special = 20 or 209

1*100 + 0*10 = Percentage apply to price = 100 or 1009
1*100 + 1*10 = Percentage skip Specials = 110 or 1109 / 5 or 59
1*100 + 2*10 = Percentage apply to special = 120 or 1209

2*100 + 0*10 = New Price apply to price = 200 or 2009
2*100 + 1*10 = New Price skip Specials = 210 or 2109 / 5 or 59
2*100 + 2*10 = New Price apply to Special = 220 or 2209

*/

// get products category
    if ($categories_id == true) {
      $check_category = $categories_id;
    } else {
      $check_category = zen_get_products_category_id($product_id);
    }

    $deduction_type_array = array(array('id' => '0', 'text' => DEDUCTION_TYPE_DROPDOWN_0),
                                  array('id' => '1', 'text' => DEDUCTION_TYPE_DROPDOWN_1),
                                  array('id' => '2', 'text' => DEDUCTION_TYPE_DROPDOWN_2));

    $sale_exists = 'false';
    $sale_maker_discount = '';
    $sale_maker_special_condition = '';
    $salemaker_sales = $db->Execute("select sale_id, sale_status, sale_name, sale_categories_all, sale_deduction_value, sale_deduction_type, sale_pricerange_from, sale_pricerange_to, sale_specials_condition, sale_categories_selected, sale_date_start, sale_date_end, sale_date_added, sale_date_last_modified, sale_date_status_change from " . TABLE_SALEMAKER_SALES . " where sale_status='1'");
    while (!$salemaker_sales->EOF) {
      $categories = explode(',', $salemaker_sales->fields['sale_categories_all']);
  	  while (list($key,$value) = each($categories)) {
	      if ($value == $check_category) {
          $sale_exists = 'true';
  	      $sale_maker_discount = $salemaker_sales->fields['sale_deduction_value'];
  	      $sale_maker_special_condition = $salemaker_sales->fields['sale_specials_condition'];
	        $sale_maker_discount_type = $salemaker_sales->fields['sale_deduction_type'];
	        break;
        }
      }
      $salemaker_sales->MoveNext();
    }

    $check_special = zen_get_products_special_price($product_id, true);

    if ($sale_exists == 'true' and $sale_maker_special_condition != 0) {
      $sale_maker_discount_type = (($sale_maker_discount_type * 100) + ($sale_maker_special_condition * 10));
    } else {
      $sale_maker_discount_type = 5;
    }

    if (!$check_special) {
      // do nothing
    } else {
      $sale_maker_discount_type = ($sale_maker_discount_type * 10) + 9;
    }

    switch (true) {
      case (!$return_value):
        return $sale_maker_discount_type;
        break;
      case ($return_value == 'amount'):
        return $sale_maker_discount;
        break;
      default:
        return 'Unknown Request';
        break;
    }
  }

////
// look up discount in sale makers - attributes only can have discounts if set as percentages
// this gets the discount amount this does not determin when to apply the discount
  function zen_get_products_sale_discount($product_id = false, $categories_id = false, $display_type = false) {
    global $currencies;
    global $db;

// get products category
    if ($categories_id == true) {
      $check_category = $categories_id;
    } else {
      $check_category = zen_get_products_category_id($product_id);
    }

    $deduction_type_array = array(array('id' => '0', 'text' => DEDUCTION_TYPE_DROPDOWN_0),
                                  array('id' => '1', 'text' => DEDUCTION_TYPE_DROPDOWN_1),
                                  array('id' => '2', 'text' => DEDUCTION_TYPE_DROPDOWN_2));

    $sale_maker_discount = 0;
    $salemaker_sales = $db->Execute("select sale_id, sale_status, sale_name, sale_categories_all, sale_deduction_value, sale_deduction_type, sale_pricerange_from, sale_pricerange_to, sale_specials_condition, sale_categories_selected, sale_date_start, sale_date_end, sale_date_added, sale_date_last_modified, sale_date_status_change from " . TABLE_SALEMAKER_SALES . " where sale_status='1'");
    while (!$salemaker_sales->EOF) {
      $categories = explode(',', $salemaker_sales->fields['sale_categories_all']);
  	  while (list($key,$value) = each($categories)) {
	      if ($value == $check_category) {
  	      $sale_maker_discount = $salemaker_sales->fields['sale_deduction_value'];
	        $sale_maker_discount_type = $salemaker_sales->fields['sale_deduction_type'];
	        break;
        }
      }
      $salemaker_sales->MoveNext();
    }

    switch(true) {
      // percentage discount only
      case ($sale_maker_discount_type == 1):
        $sale_maker_discount = (1 - ($sale_maker_discount / 100));
        break;
      case ($sale_maker_discount_type == 0 and $display_type == true):
        $sale_maker_discount = $sale_maker_discount;
        break;
      case ($sale_maker_discount_type == 0 and $display_type == false):
        $sale_maker_discount = $sale_maker_discount;
        break;
      case ($sale_maker_discount_type == 2 and $display_type == true):
        $sale_maker_discount = $sale_maker_discount;
        break;
      default:
        $sale_maker_discount = 1;
        break;
    }

    if ($display_type == true) {
      if ($sale_maker_discount != 1 and $sale_maker_discount !=0) {
        switch(true) {
          case ($sale_maker_discount_type == 0):
            $sale_maker_discount = $currencies->format($sale_maker_discount) . ' ' . $deduction_type_array[$sale_maker_discount_type]['text'];
            break;
          case ($sale_maker_discount_type == 2):
            $sale_maker_discount = $currencies->format($sale_maker_discount) . ' ' . $deduction_type_array[$sale_maker_discount_type]['text'];
            break;
          case ($sale_maker_discount_type == 1):
            $sale_maker_discount = number_format( (1.00 - $sale_maker_discount),2,".","") . ' ' . $deduction_type_array[$sale_maker_discount_type]['text'];
            break;
        }