我在.CSV文件中有一组数据，该文件由以空格分隔的两列（分数，ID）组成。我需要将其写到SQL数据库中，因为在同一个SQL数据库中有许多格式与我所需的文件相同的格式。
我已经将.csv文件转换为pandas数据帧，并使用df.to_sql插入表中，但是当我在终端中使用.fullschema查询时，我只会得到'/ *没有可用的STAT表* /'并且没有提及表格或列名。
<?php
/**
* WooCommerce Points and Rewards
*
* @package WC-Points-Rewards/Classes
* @author WooThemes
* @copyright Copyright (c) 2013, WooThemes
* @license http://www.gnu.org/licenses/gpl-3.0.html GNU General Public License v3.0
*/
if ( ! defined( 'ABSPATH' ) ) {
exit;
}
/**
* Discount class
*
* Handles generating the coupon code and data that allows the user to redeem their points for a discount
*
* @since 1.6.0
*/
class WC_Points_Rewards_Discount {
/**
* Add coupon-related filters to help generate the custom coupon
*
* @since 1.6.0
*/
public function __construct() {
$this->hooks( 'add' );
}
/**
* Add or remove callbacks to/from the hooks.
*
* @since 1.6.5
* @version 1.6.5
*
* @param string $verb What operation to perform (either 'add' or 'remove').
*/
protected function hooks( $verb ) {
$filters = array(
array( 'woocommerce_get_shop_coupon_data', array( $this, 'get_discount_data' ), 10, 2 ),
array( 'woocommerce_coupon_message', array( $this, 'get_discount_applied_message' ), 10, 3 ),
array( 'woocommerce_coupon_get_discount_amount', array( $this, 'get_discount_amount' ), 10, 5 ),
);
$func = 'add' === $verb ? 'add_filter' : 'remove_filter';
foreach ( $filters as $filter ) {
call_user_func_array( $func, $filter );
}
}
/**
* Generate the coupon data required for the discount
*
* @deprecated 1.6.0
* @since 1.0
* @param array $data the coupon data
* @param string $code the coupon code
* @return array the custom coupon data
*/
public function get_discount_data( $data, $code ) {
if ( strtolower( $code ) != $this->get_discount_code() ) {
return $data;
}
// note: we make our points discount "greedy" so as many points as possible are
// applied to the order. However we also want to play nice with other discounts
// so if another coupon is applied we want to use less points than otherwise.
// The solution is to make this discount apply post-tax so that both pre-tax
// and post-tax discounts can be considered. At the same time we use the cart
// subtotal excluding tax to calculate the maximum points discount, so it
// functions like a pre-tax discount in that sense.
$data = array(
'id' => true,
'type' => 'fixed_cart',
'amount' => 0,
'coupon_amount' => 0, // 2.2
'individual_use' => false,
'usage_limit' => '',
'usage_count' => '',
'expiry_date' => '',
'apply_before_tax' => true,
'free_shipping' => false,
'product_categories' => array(),
'exclude_product_categories' => array(),
'exclude_sale_items' => false,
'minimum_amount' => '',
'maximum_amount' => '',
'customer_email' => '',
);
return $data;
}
/**
* Get total amount discounted by existing fixed_product coupons.
*
* @since 1.6.5
* @version 1.6.5
*
* @return float
*/
public function get_discount_total_from_existing_coupons() {
$coupons = WC()->cart->get_coupons();
$total_discount = 0;
foreach ( WC()->cart->get_cart() as $item ) {
$total_discount += $this->get_cart_item_discount_total( $item );
}
return $total_discount;
}
/**
* Get discount total (using fixed_product coupons) from a given cart item.
*
* @since 1.6.5
* @version 1.6.5
*
* @param mixed $item Cart item.
*
* @return float Discount total.
*/
public function get_cart_item_discount_total( $item ) {
// Since we call get_discount_amount this could potentially result in
// a loop.
$this->hooks( 'remove' );
$discount = 0;
foreach ( WC()->cart->get_coupons() as $coupon ) {
if ( strtolower( $coupon->get_code() ) === $this->get_discount_code() || ! $coupon->is_type( 'fixed_product' ) ) {
continue;
}
if ( ! $coupon->is_valid() ) {
continue;
}
if ( $coupon->is_valid_for_product( $item['data'], $item ) || $coupon->is_valid_for_cart() ) {
$discount += (float) $coupon->get_discount_amount( $item['data']->get_price(), $item, true ) * $item['quantity'];
}
}
// Add the hooks back.
$this->hooks( 'add' );
return $discount;
}
/**
* Get coupon discount amount
*
* @since 1.6.0
* @version 1.6.12
* @param float $discount Amount this coupon has been discounted
* @param float $discounting_amount Amount the coupon is being applied to
* @param array $cart_item Cart item being discounted if applicable
* @param boolean $single True if discounting a single qty item, false if its the line
* @param WC_Coupon $coupon
* @return float Amount this coupon will be discounted
*/
public function get_discount_amount( $discount, $discounting_amount, $cart_item, $single, $coupon ) {
if ( strtolower( $coupon->get_code() ) != $this->get_discount_code() ) {
return $discount;
}
$existing_discount_amounts = $this->get_discount_total_from_existing_coupons();
/**
* This is the most complex discount - we need to divide the discount between rows based on their price in
* proportion to the subtotal. This is so rows with different tax rates get a fair discount, and so rows
* with no price (free) don't get discounted.
*
* Get item discount by dividing item cost by subtotal to get a %
*/
$discount_percent = 0;
$cart_item_qty = $cart_item['quantity'];
$cart_item_data = $cart_item['data'];
if ( wc_prices_include_tax() ) {
$sub_total_inc_tax = WC()->cart->subtotal - $existing_discount_amounts;
$discount_percent = (
wc_get_price_including_tax( $cart_item_data ) * $cart_item_qty - $this->get_cart_item_discount_total( $cart_item )
) / $sub_total_inc_tax;
} else {
$sub_total_ex_tax = WC()->cart->subtotal_ex_tax - $existing_discount_amounts;
$discount_percent = (
wc_get_price_excluding_tax( $cart_item_data ) * $cart_item_qty - $this->get_cart_item_discount_total( $cart_item )
) / $sub_total_ex_tax;
}
$total_discount = WC_Points_Rewards_Cart_Checkout::get_discount_for_redeeming_points( true, $existing_discount_amounts );
$total_with_discount_percent = (float) $total_discount * $discount_percent;
if ( version_compare( WC_VERSION, '3.2.0', '<' ) ) {
$total_with_discount_percent = $total_with_discount_percent / $cart_item['quantity'];
}
if ( version_compare( WC_VERSION, '2.6.3', '>' ) ) {
return round( min( $total_with_discount_percent, $discounting_amount ), wc_get_rounding_precision() );
} else {
return round( min( $total_with_discount_percent, $discounting_amount ), 6 );
}
}
/**
* Change the "Coupon applied successfully" message to "Discount Applied Successfully"
*
* @since 1.6.0
* @param string $message the message text
* @param string $message_code the message code
* @param object $coupon the WC_Coupon instance
* @return string the modified messages
*/
public function get_discount_applied_message( $message, $message_code, $coupon ) {
if ( WC_Coupon::WC_COUPON_SUCCESS === $message_code && $coupon->get_code() === $this->get_discount_code() ) {
return __( 'Discount Applied Successfully', 'woocommerce-points-and-rewards' );
} else {
return $message;
}
}
/**
* Generates a unique discount code tied to the current user ID and timestamp
*
* @since 1.6.0
*/
public static function generate_discount_code() {
// set the discount code to the current user ID + the current time in YYYY_MM_DD_H_M format
$discount_code = sprintf( 'wc_points_redemption_%s_%s', get_current_user_id(), date( 'Y_m_d_h_i', current_time( 'timestamp' ) ) );
WC()->session->set( 'wc_points_rewards_discount_code', $discount_code );
return $discount_code;
}
/**
* Returns the unique discount code generated for the applied discount if set
*
* @since 1.6.0
*/
public static function get_discount_code() {
if ( WC()->session !== null ) {
return WC()->session->get( 'wc_points_rewards_discount_code' );
}
}
}
在终端中使用.open UNILSCORES.db然后在.fullschema中进行查询时，我只得到'/ *没有可用的STAT表* /'作为回报。import csv
import pandas as pd
con = sqlite3.connect('UNILSCORES.db')
cur = con.cursor()
cur.execute('''CREATE TABLE UNILSCORES
(Score, ID)''')
colnames=["Score","ID"]
df=pd.read_csv('PROBEli41.csv', delim_whitespace=True, names= colnames,index_col=0, header=0)
df.to_sql('UNILSCORES.db' ,con,if_exists='append', index=False)