我正在关联两个数据帧以检查访问是否发生。
List<ContactPOJO> list_contact;
List<ContactPOJO> list_selected_contact = new ArrayList();
for (ContactPOJO pojo : list_contact){
pojo.setIs_selected(true);
list_selected_contact.add(pojo);
}
以上栏目的输出是：
def visiter(d,visits):
visit = visits[d.start_date:d.end_date]
out = visit[(visit['user_id'] == d.user_id)&(visit['merchant_id']==d.merchant_id)].head(1) #only take the first visit
return (out.index.date.astype('str'))
data['visited_at']= data.apply(lambda x: str(visiter(x,visits)),axis =1 )
使用0 []
1 []
2 ['2017-04-24']
3 []
4 []
Name: visited_at, dtype: object
转换列，生成整个列pd.to_datetime(data.visited_at, errors = 'coerce')。
我是否可以使用正确的格式更改日期时间，如下所示：NAT
EDIT1： 数据框如下所示：
2017-05-01 00:00:00答案 0 :(得分：1)
您需要strip删除[]：
pd.to_datetime(data['visited_at'].str.strip('[]'), errors = 'coerce')
data['visited_at'] = pd.to_datetime(data['visited_at'].str.strip('[]'), errors = 'coerce')
print (data)
Index id user_id merchant_id \
0 68989 68990 13277 38 437 2016-04-11 00:00:00
1 403557 403558 195246 179 2218 2017-06-09 00:00:00
2 333381 333382 127359 514 1820 2017-04-24 00:00:00
3 511815 511816 151653 259 1136 2017-08-05 00:00:00
4 167172 167173 51546 32 363 2016-08-05 00:00:00
marketing_email_id start_date end_date email_status \
0 68989 68990 13277 2016-04-16 00:00:00 1 NaN
1 403557 403558 195246 2017-06-12 00:00:00 0 1.0
2 333381 333382 127359 2017-05-01 00:00:00 0 1.0
3 511815 511816 151653 2017-08-08 00:00:00 0 1.0
4 167172 167173 51546 2016-08-15 00:00:00 1 NaN
sms_status created_at visited_at
0 68989 68990 13277 2016-04-11 11:05:31 NaT
1 403557 403558 195246 2017-06-09 06:01:04 NaT
2 333381 333382 127359 2017-04-24 10:00:33 2017-04-24
3 511815 511816 151653 2017-08-05 11:31:19 NaT
4 167172 167173 51546 2016-08-05 12:00:43 NaT
另一个解决方案是检查是否为空df，并选择[0] if-else的第一个值：
def visiter(d,visits):
visit = visits[d.start_date:d.end_date]
out=visit[(visit['user_id'] == d.user_id)&(visit['merchant_id']==d.merchant_id)].head(1)
out = np.nan if out.empty else out.index.date[0]
return (out)
答案 1 :(得分：0)
add_action('woocommerce_cart_contents', 'mm_woocommerce_cart_contents');
/**
* Cart Additional Products List Fragment
*/
function mm_woocommerce_cart_contents(){
// @Note: Modify WP_Query arguments below to get the products you are looking for
$args = array(
'post_type' => 'product',
'posts_per_page' => -1,
'post__not_in' => wp_list_pluck(WC()->cart->get_cart(), 'product_id'),
);
// Set the query
$products = new WP_Query( $args );
//Starting output buffering
ob_start();
// Standard loop
if ( $products->have_posts() ) :
while ( $products->have_posts() ) : $products->the_post();
$_product = wc_get_product( $post );
// Making sure that In Stock or Backorder Allowed products are not
// shown so there are no out-of-stock errors when updating cart
if (! ( $_product->is_in_stock() || $_product->backorders_allowed() ) ) {
continue;
}
?>
<!-- @Note: Modify HTML structure below this line in case you are using modified cart.php in your theme -->
<tr class="<?php echo esc_attr( apply_filters( 'woocommerce_cart_item_class', 'cart_item', $_product ) ); ?>">
<td class="product-name">
<?php
if ( ! $_product->is_visible() )
echo apply_filters( 'woocommerce_cart_item_name', $_product->get_title() ) . ' ';
else
echo apply_filters( 'woocommerce_cart_item_name', sprintf( '<a href="%s">%s </a>', $_product->get_permalink(), $_product->get_title() ) );
?>
</td>
<td class="product-quantity">
<?php
if( $_product->is_sold_individually() ) {
$max_value = 1;
} else {
$max_value = $_product->backorders_allowed() ? '' : $_product->get_stock_quantity();
}
$product_quantity = woocommerce_quantity_input( array(
'input_name' => "mm_additional_products[{$_product->id}]",
'input_value' => '0',
'max_value' => $max_value,
'min_value' => '0'
), $_product );
?>
</td>
<td class="product-price">
<?php
echo WC()->cart->get_product_price( $_product );
?>
</td>
<td class="product-subtotal">
<?php
echo '--';
?>
</td>
<td class="product-remove">
<?php
echo '--';
?>
</td>
</tr>
<?php
endwhile;
wp_reset_postdata();
endif;
// Echoing HTML from the loop above.
echo ob_get_clean();
}
中的值是否实际列出（/*
* Multi Add to Cart Functions
*
* Modified version of
* https://dsgnwrks.pro/snippets/woocommerce-allow-adding-multiple-products-to-the-cart-via-the-add-to-cart-query-string/
*/
function mm_add_to_cart_additional_products( $url = false ) {
// Make sure WC is installed, and mm_additional_products query arg exists.
if ( ! class_exists( 'WC_Form_Handler' ) || empty( $_REQUEST['mm_additional_products'] ) ) {
return;
}
// Remove WooCommerce's hook, as it's useless (doesn't handle multiple products).
remove_action( 'wp_loaded', array( 'WC_Form_Handler', 'add_to_cart_action' ), 20 );
// Handle products with zero quantity from the array and assign
$product_ids = array_map( 'intval', $_REQUEST['mm_additional_products'] );
$product_ids = array_filter( $product_ids, function( $v ){
return $v > 0;
});
$count = count( $product_ids );
$number = 0;
foreach ( $product_ids as $product_id => $quantity ) { //$id_and_quantity
$_REQUEST['quantity'] = $quantity;
if ( ++$number === $count ) {
// Ok, final item, let's send it back to woocommerce's add_to_cart_action method for handling.
$_REQUEST['add-to-cart'] = $product_id;
return WC_Form_Handler::add_to_cart_action( $url );
}
$product_id = apply_filters( 'woocommerce_add_to_cart_product_id', absint( $product_id ) );
$was_added_to_cart = false;
$adding_to_cart = wc_get_product( $product_id );
// If a there isn't any Product for this ID let's skip the cycle
if ( ! $adding_to_cart ) {
continue;
}
$add_to_cart_handler = apply_filters( 'woocommerce_add_to_cart_handler', $adding_to_cart->get_type(), $adding_to_cart );
// Variable product handling
if ( 'variable' === $add_to_cart_handler ) {
woo_hack_invoke_private_method( 'WC_Form_Handler', 'add_to_cart_handler_variable', $product_id );
// Grouped Products
} elseif ( 'grouped' === $add_to_cart_handler ) {
woo_hack_invoke_private_method( 'WC_Form_Handler', 'add_to_cart_handler_grouped', $product_id );
// Custom Handler
} elseif ( has_action( 'woocommerce_add_to_cart_handler_' . $add_to_cart_handler ) ){
do_action( 'woocommerce_add_to_cart_handler_' . $add_to_cart_handler, $url );
// Simple Products
} else {
woo_hack_invoke_private_method( 'WC_Form_Handler', 'add_to_cart_handler_simple', $product_id );
}
}
}
// Fire before the WC_Form_Handler::add_to_cart_action callback.
add_action( 'wp_loaded', 'mm_add_to_cart_additional_products', 15 );
/**
* Invoke class private method
*
* @since 0.1.0
*
* @param string $class_name
* @param string $methodName
*
* @return mixed
*/
function woo_hack_invoke_private_method( $class_name, $methodName ) {
if ( version_compare( phpversion(), '5.3', '<' ) ) {
throw new Exception( 'PHP version does not support ReflectionClass::setAccessible()', __LINE__ );
}
$args = func_get_args();
unset( $args[0], $args[1] );
$reflection = new ReflectionClass( $class_name );
$method = $reflection->getMethod( $methodName );
$method->setAccessible( true );
$args = array_merge( array( $class_name ), $args );
return call_user_func_array( array( $method, 'invoke' ), $args );
}
）或列表的字符串表示（visited_at）？
如果是列表，您可以使用[]：
'[]'如果是列表字符串，您可以使用以下方法进行破解：
apply无论哪种方式，你都会得到：
visited_at.apply(lambda x: pd.to_datetime(x[0]) if len(x) else x)