ecshop后臺默認沒有給商品設置最小起訂量或者最少購買量的功能。保哥在使用ecshop做一個商城時，要給商品設置包郵來吸引買家，但又不想買家購買一件產品也給包郵，這樣很容易虧本。對于價值較高的商品有一定的利潤空間設置包郵是合情合理的，但是有的商品價格都低于運費了，就不能再包郵了。有的朋友可能會說，可以發布商品屬性價格，不同數量裝的價格或者發布商品時，設置十個裝的價格，但是這樣的話，買家一眼看到商品上顯示的價位太高，可能心理上就不愿意再看了。我們設置一件商品的價格，這樣在心理上感覺便宜。具體的解決思路是可以給ecshop在下訂單設置一個強制提示最小購買數量。具體的解決步驟如下：

編輯/themes/goods.dwt文件，找到以下代碼：

替換為以下代碼：

但是這種方法會使得全站所有的商品購買數量都設置為不低于十個，不太人性化。那么下面這種修改數據庫的方法，可以在后臺產品編輯時，設置每個商品的最小購買數量。具體方法如下：

第一步，給商品表創建一個新字段min_number用于儲存每個商品的最小訂購數量數據，打開goods表在最后字段添加一個min_number類型為tinyint默認值為0

alter table 'goods' add column 'min_number' tinyint (3) UNSIGNED DEFAULT '0' NOT NULL after 'warn_number'

第二步，在后臺添加商品的時候，在text文本框里設置最小起訂量，編輯admin/goods.php文件

找到

'warn_number'=> 1 ,

代碼行后插入

'min_number'=> 0,

在

$warn_number = isset($_POST['warn_number']) ? $_POST['warn_number'] : 0;

后添加代碼

$min_number = isset($_POST['min_number']) ? $_POST['min_number'] : 0;

第三步，修改添加商品sql語句

if ($is_insert){

if ($code == ''){

$sql = "INSERT INTO " . $ecs->table('goods') . " (goods_name, goods_name_style, goods_sn, " .

"cat_id, brand_id, shop_price, market_price, is_promote, promote_price, " .

"promote_start_date, promote_end_date, goods_img, goods_thumb, original_img,keywords, goods_brief, " .

"seller_note, goods_weight, goods_number, warn_number,min_number, integral,give_integral, is_best, is_new, is_hot, ".

"is_on_sale, is_alone_sale, goods_desc, add_time, last_update, goods_type,rank_integral)" .

"VALUES ('$_POST[goods_name]', '$goods_name_style', '$goods_sn', '$catgory_id', " .

"'$brand_id', '$shop_price', '$market_price', '$is_promote','$promote_price', ".

"'$promote_start_date', '$promote_end_date', '$goods_img', '$goods_thumb', '$original_img', ".

"'$_POST[keywords]', '$_POST[goods_brief]', '$_POST[seller_note]', '$goods_weight','$goods_number',".

"'$warn_number','$min_number', '$_POST[integral]', '$give_integral', '$is_best', '$is_new', '$is_hot', '$is_on_sale', '$is_alone_sale', ".

"'$_POST[goods_desc]', '" . gmtime() . "', '". gmtime() ."', '$goods_type','$rank_integral')";

}else{

$sql = "INSERT INTO " . $ecs->table('goods') . " (goods_name, goods_name_style, goods_sn, ".

"cat_id, brand_id, shop_price, market_price, is_promote, promote_price, " .

"promote_start_date, promote_end_date, goods_img, goods_thumb, original_img,keywords, goods_brief, " .

"seller_note, goods_weight, goods_number, warn_number, min_number,integral,give_integral, is_best, is_new, is_hot, is_real, " .

"is_on_sale, is_alone_sale, goods_desc, add_time, last_update, goods_type,extension_code, rank_integral)" .

"VALUES ('$_POST[goods_name]', '$goods_name_style', '$goods_sn', '$catgory_id', " .

"'$brand_id', '$shop_price', '$market_price', '$is_promote','$promote_price', ".

"'$promote_start_date', '$promote_end_date', '$goods_img', '$goods_thumb','$original_img', ".

"'$_POST[keywords]', '$_POST[goods_brief]', '$_POST[seller_note]', '$goods_weight','$goods_number',".

" '$warn_number','$min_number', '$_POST[integral]', '$give_integral', '$is_best','$is_new', '$is_hot', 0, '$is_on_sale', '$is_alone_sale’' ".

" '$_POST[goods_desc]', '" . gmtime() . "', '". gmtime() ."', '$goods_type', '$code', '$rank_integral')";

}

}else{

$sql = "SELECT goods_thumb, goods_img, original_img " .

" FROM " . $ecs->table('goods') .

" WHERE goods_id = '$_REQUEST[goods_id]'";

$row = $db->getRow($sql);

if ($proc_thumb && $goods_img && $row['goods_img'] &&

!goods_parse_url($row['goods_img']))

{

@unlink(ROOT_PATH . $row['goods_img']);

@unlink(ROOT_PATH . $row['original_img']);

}

if ($proc_thumb && $goods_thumb && $row['goods_thumb'] && !goods_parse_url($row['goods_thumb']))

{

@unlink(ROOT_PATH . $row['goods_thumb']);

}

$sql = "UPDATE " . $ecs->table('goods') . " SET " .

"goods_name = '$_POST[goods_name]', " .

"goods_name_style = '$goods_name_style', " .

"goods_sn = '$goods_sn', " .

"cat_id = '$catgory_id', " .

"brand_id = '$brand_id', " .

"shop_price = '$shop_price', " .

"market_price = '$market_price', " .

"is_promote = '$is_promote', " .

"promote_price = '$promote_price', " .

"promote_start_date = '$promote_start_date', " .

"promote_end_date = '$promote_end_date', ";

if ($goods_img)

{

$sql .= "goods_img = '$goods_img', original_img = '$original_img', ";

}

if ($goods_thumb)

{

$sql .= "goods_thumb = '$goods_thumb', ";

}

if ($code != '')

{

$sql .= "is_real=0, extension_code='$code', ";

}

$sql .= "keywords = '$_POST[keywords]', " .

"goods_brief = '$_POST[goods_brief]', " .

"seller_note = '$_POST[seller_note]', " .

"goods_weight = '$goods_weight'," .

"goods_number = '$goods_number', " .

"warn_number = '$warn_number', " .

"min_number = '$min_number', " .

"integral = '$_POST[integral]', " .

"give_integral = '$give_integral', " .

"rank_integral = '$rank_integral', " .

"is_best = '$is_best', " .

"is_new = '$is_new', " .

"is_hot = '$is_hot', " .

"is_on_sale = '$is_on_sale', " .

"is_alone_sale = '$is_alone_sale', " .

"goods_desc = '$_POST[goods_desc]', " .

"last_update = '". gmtime() ."', ".

"goods_type = '$goods_type' " .

"WHERE goods_id = '$_REQUEST[goods_id]' LIMIT 1";

}

第四步，修改后臺模板文件admin/templates/goods_info.htm

在

{$lang.lab_shop_price}

{$lang.require_field}

后添加

{$lang.lab_min_number}

{$lang.notice_min_number}

第五步:修改語言languages/zh_cn/admin/goods.php

最后添加

$_LANG['lab_min_number'] = '最小購買數量:';

$_LANG['notice_min_number'] = '該商品最小購買數量,0表示按購買數量無限制.'

到現在位置 后臺設置全部結束了，不知道大家能懂了沒有

前臺實現：

以default模板為例，修改themes/default/goods.dwt

改成

這樣就是value 也就是默認值了

最后添加JS判斷就好了

themes/default/goods.dwt

在

var qty = document.forms['ECS_FORMBUY'].elements['number'].value;

后添加

{if $goods.min_number}

if(qty < {$goods.min_number})

{

alert('您輸入的數字小于此商品最小購買數量：{$goods.min_number}');

qty = {$goods.min_number};

}

{/if}

總結

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