请帮助我解决以下问题。
发生数据库错误
错误号码：1066
不唯一的表/别名：'ospos_people'
SELECT first_name, last_name, invoice_number, amount_tendered, sale_time,
DATE_FORMAT( sale_time, '%d-%m-%Y' ) AS sale_date, ospos_sales.sale_id AS
sale_id, SUM(item_unit_price * quantity_purchased * (1 - discount_percent / 100))
AS amount_due FROM (ospos_sales) LEFT JOIN ospos_people ON ospos_people.person_id
= ospos_sales.customer_id LEFT JOIN ospos_people ON ospos_people.person_id =
ospos_sales.vehicle_id JOIN ospos_sales_items ON ospos_sales_items.sale_id =
ospos_sales.sale_id LEFT JOIN (SELECT sale_id, SUM(payment_amount) AS
amount_tendered FROM ospos_sales_payments WHERE payment_type <> 'Check' GROUP BY
sale_id) AS payments ON payments.sale_id = ospos_sales.sale_id GROUP BY sale_id
ORDER BY sale_time desc LIMIT 25
文件名：/ home /../ public_html /../ models / sale.php
Model = sale.php
<?php
class Sale extends CI_Model
{
public function get_info($sale_id)
{
$this->db->select('first_name, last_name, email, comment, invoice_number, amount_tendered, ' .
'sale_time, employee_id, customer_id, vehicle_id, comments');
$this->db->select("DATE_FORMAT( sale_time, '%d-%m-%Y' ) AS sale_date", FALSE);
$this->db->select("sales.sale_id AS sale_id");
$this->db->select("SUM(item_unit_price * quantity_purchased * (1 - discount_percent / 100)) AS amount_due");
$this->db->from('sales');
$this->db->join('people', 'people.person_id = sales.customer_id', 'left');
$this->db->join('people', 'people.person_id = sales.vehicle_id', 'left');
$this->db->join('sales_items', 'sales_items.sale_id = sales.sale_id');
$this->db->join("(SELECT sale_id, SUM(payment_amount) AS amount_tendered " .
" FROM " . $this->db->dbprefix('sales_payments') ." WHERE payment_type <> '" .
$this->lang->line('sales_check') . "' GROUP BY sale_id) AS payments",
"payments.sale_id = sales.sale_id", 'left');
$this->db->where('sales.sale_id',$sale_id);
$this->db->order_by('sale_time', 'desc');
$this->db->group_by('sale_id');
return $this->db->get();
}
function get_all($only_invoices = 0, $rows = 0, $limit_from = 0)
{
$this->db->select('first_name, last_name, invoice_number, amount_tendered, sale_time');
$this->db->select("DATE_FORMAT( sale_time, '%d-%m-%Y' ) AS sale_date", FALSE);
$this->db->select("sales.sale_id AS sale_id");
$this->db->select("SUM(item_unit_price * quantity_purchased * (1 - discount_percent / 100)) AS amount_due");
$this->db->from('sales');
$this->db->join('people', 'people.person_id = sales.customer_id', 'left');
$this->db->join('people', 'people.person_id = sales.vehicle_id', 'left');
$this->db->join('sales_items', 'sales_items.sale_id = sales.sale_id');
$this->db->join("(SELECT sale_id, SUM(payment_amount) AS amount_tendered " .
" FROM " . $this->db->dbprefix('sales_payments') ." WHERE payment_type <> '" .
$this->lang->line('sales_check') . "' GROUP BY sale_id) AS payments",
"payments.sale_id = sales.sale_id", 'left');
$this->db->order_by('sale_time', 'desc');
$this->db->group_by('sale_id');
if ($rows > 0) {
$this->db->limit($rows, $limit_from);
}
if ($only_invoices != 0) {
$this->db->where('invoice_number <> ', 'NULL');
}
return $this->db->get();
}
function search($search, $only_invoices = FALSE, $rows = 0, $limit_from = 0)
{
$valid_receipt = $this->sale_lib->is_valid_receipt($search);
$this->db->select('first_name, last_name, invoice_number, amount_tendered, sale_time');
$this->db->select("DATE_FORMAT( sale_time, '%d-%m-%Y' ) AS sale_date", FALSE);
$this->db->select("sales.sale_id AS sale_id");
$this->db->select("SUM(item_unit_price * quantity_purchased * (1 - discount_percent / 100)) AS amount_due");
$this->db->from('sales');
$this->db->join('people', 'people.person_id = sales.customer_id', 'left');
$this->db->join('people', 'people.person_id = sales.vehicle_id', 'left');
$this->db->join('sales_items', 'sales_items.sale_id = sales.sale_id');
$this->db->join("(SELECT sale_id, SUM(payment_amount) AS amount_tendered " .
" FROM " . $this->db->dbprefix('sales_payments') ." WHERE payment_type <> '" .
$this->lang->line('sales_check') . "' GROUP BY sale_id) AS payments",
"payments.sale_id = sales.sale_id", 'left');
$this->db->group_by('sale_id');
if (!empty($search)) {
// if barcode scanned, explode and search for second term which will be the id
if ($valid_receipt) {
$pieces = explode(' ',$search);
$this->db->where('sales.sale_id', $pieces[1]);
} else {
// open parentheses
$this->db->where("( last_name LIKE '%" . $search . "%' OR ".
"first_name LIKE '%" . $search . "%' OR " .
"CONCAT( first_name,' ',last_name ) LIKE '%" . $search . "%')");
// close parentheses
}
}
if ($only_invoices != 0) {
$this->db->where('invoice_number <> ', 'NULL');
}
$this->db->order_by('sale_time DESC');
if ($rows > 0) {
$this->db->limit($rows, $limit_from);
}
return $this->db->get();
}
function get_total_rows()
{
$this->db->from('sales');
return $this->db->count_all_results();
}
function get_search_suggestions($search,$limit=25)
{
$suggestions = array();
if (!$this->sale_lib->is_valid_receipt($search)) {
$this->db->distinct();
$this->db->select('first_name, last_name, invoice_number, sale_time');
$this->db->select("DATE_FORMAT( sale_time, '%d-%m-%Y' ) AS sale_date", FALSE);
$this->db->select("sales.sale_id AS sale_id");
$this->db->from('sales');
$this->db->join('people', 'people.person_id = sales.customer_id', 'left');
$this->db->join('people', 'people.person_id = sales.vehicle_id', 'left');
$this->db->where("( last_name LIKE '%" . $search . "%' OR ".
"first_name LIKE '%" . $search . "%' OR " .
"CONCAT( first_name, last_name ))");
$this->db->order_by('last_name', "asc");
foreach($this->db->get()->result_array() as $result)
{
$suggestions[]=$result[ 'first_name' ].' '.$result[ 'last_name' ];
}
} else {
$suggestions[]=$search;
}
return $suggestions;
}
function get_found_rows($search, $only_invoices = FALSE)
{
$valid_receipt = $this->sale_lib->is_valid_receipt($search);
$this->db->from('sales');
$this->db->join('sales_items', 'sales_items.sale_id = sales.sale_id');
$this->db->join('people', 'people.person_id = sales.customer_id', 'left');
$this->db->join('people', 'people.person_id = sales.vehicle_id', 'left');
$this->db->group_by('sales.sale_id');
if (!empty($search)) {
// if barcode scanned, explode and search for second term which will be the id
$pieces = explode(' ',$search);
if ($valid_receipt && count($pieces) == 2) {
$this->db->where('sales.sale_id', $pieces[1]);
} else {
// open parentheses
$this->db->where("( last_name LIKE '%" . $search . "%' OR ".
"first_name LIKE '%" . $search . "%' OR " .
"CONCAT( first_name,' ',last_name ) LIKE '%" . $search . "%')");
// close parentheses
}
}
if ($only_invoices != 0) {
$this->db->where('invoice_number <> ', 'NULL');
}
return $this->db->get()->num_rows();
}
function get_invoice_count()
{
$this->db->from('sales');
$this->db->where('invoice_number is not null');
return $this->db->count_all_results();
}
function get_sale_by_invoice_number($invoice_number)
{
$this->db->from('sales');
$this->db->where('invoice_number', $invoice_number);
return $this->db->get();
}
function get_invoice_number_for_year($year='', $start_from = 0)
{
$year = $year == '' ? date('Y') : $year;
$this->db->select("COUNT( 1 ) AS invoice_number_year", FALSE);
$this->db->from('sales');
$this->db->where("DATE_FORMAT(sale_time, '%Y' ) = ", $year, FALSE);
$this->db->where("invoice_number IS NOT ", "NULL", FALSE);
$result = $this->db->get()->row_array();
return ($start_from + $result[ 'invoice_number_year']);
}
function exists($sale_id)
{
$this->db->from('sales');
$this->db->where('sale_id',$sale_id);
$query = $this->db->get();
return ($query->num_rows()==1);
}
function update($sale_data, $sale_id)
{
$this->db->where('sale_id', $sale_id);
$success = $this->db->update('sales',$sale_data);
return $success;
}
function save ($items,$customer_id,$vehicle_id,$employee_id,$comment,$invoice_number,$payments,$sale_id=false)
{
if(count($items)==0)
return -1;
$sales_data = array(
'sale_time' => date('Y-m-d H:i:s'),
'customer_id'=> $this->Customer->exists($customer_id) ? $customer_id : null,
'vehicle_id'=> $this->Vehicle->exists($vehicle_id) ? $vehicle_id : null,
'employee_id'=>$employee_id,
'comment'=>$comment,
'invoice_number'=>$invoice_number
);
//Run these queries as a transaction, we want to make sure we do all or nothing
$this->db->trans_start();
$this->db->insert('sales',$sales_data);
$sale_id = $this->db->insert_id();
foreach($payments as $payment_id=>$payment)
{
if ( substr( $payment['payment_type'], 0, strlen( $this->lang->line('sales_giftcard') ) ) == $this->lang->line('sales_giftcard') )
{
/* We have a gift card and we have to deduct the used value from the total value of the card. */
$splitpayment = explode( ':', $payment['payment_type'] );
$cur_giftcard_value = $this->Giftcard->get_giftcard_value( $splitpayment[1] );
$this->Giftcard->update_giftcard_value( $splitpayment[1], $cur_giftcard_value - $payment['payment_amount'] );
}
$sales_payments_data = array
(
'sale_id'=>$sale_id,
'payment_type'=>$payment['payment_type'],
'payment_amount'=>$payment['payment_amount']
);
$this->db->insert('sales_payments',$sales_payments_data);
}
foreach($items as $line=>$item)
{
$cur_item_info = $this->Item->get_info($item['item_id']);
$sales_items_data = array
(
'sale_id'=>$sale_id,
'item_id'=>$item['item_id'],
'line'=>$item['line'],
'description'=>$item['description'],
'serialnumber'=>$item['serialnumber'],
'quantity_purchased'=>$item['quantity'],
'discount_percent'=>$item['discount'],
'item_cost_price' => $cur_item_info->cost_price,
'item_unit_price'=>$item['price'],
'item_location'=>$item['item_location']
);
$this->db->insert('sales_items',$sales_items_data);
//Update stock quantity
$item_quantity = $this->Item_quantities->get_item_quantity($item['item_id'], $item['item_location']);
$this->Item_quantities->save(array('quantity'=>$item_quantity->quantity - $item['quantity'],
'item_id'=>$item['item_id'],
'location_id'=>$item['item_location']), $item['item_id'], $item['item_location']);
//Ramel Inventory Tracking
//Inventory Count Details
$qty_buy = -$item['quantity'];
$sale_remarks ='POS '.$sale_id;
$inv_data = array
(
'trans_date'=>date('Y-m-d H:i:s'),
'trans_items'=>$item['item_id'],
'trans_user'=>$employee_id,
'trans_location'=>$item['item_location'],
'trans_comment'=>$sale_remarks,
'trans_inventory'=>$qty_buy
);
$this->Inventory->insert($inv_data);
//------------------------------------Ramel
$customer = $this->Customer->get_info($customer_id);
if ($customer_id == -1 or $customer->taxable)
{
foreach($this->Item_taxes->get_info($item['item_id']) as $row)
{
$this->db->insert('sales_items_taxes', array(
'sale_id' =>$sale_id,
'item_id' =>$item['item_id'],
'line' =>$item['line'],
'name' =>$row['name'],
'percent' =>$row['percent']
));
}
}
//------------------------------------Vehi-ras
$vehicle = $this->Vehicle->get_info($vehicle_id);
if ($vehicle_id == -1 or $vehicle->taxable)
{
foreach($this->Item_taxes->get_info($item['item_id']) as $row)
{
$this->db->insert('sales_items_taxes', array(
'sale_id' =>$sale_id,
'item_id' =>$item['item_id'],
'line' =>$item['line'],
'name' =>$row['name'],
'percent' =>$row['percent']
));
}
}
}
$this->db->trans_complete();
if ($this->db->trans_status() === FALSE)
{
return -1;
}
return $sale_id;
}
function delete_list($sale_ids, $employee_id,$update_inventory=TRUE)
{
$result = TRUE;
foreach($sale_ids as $sale_id) {
$result &= $this->delete($sale_id, $employee_id, $update_inventory);
}
return $result;
}
function delete($sale_id,$employee_id,$update_inventory=TRUE)
{
// start a transaction to assure data integrity
$this->db->trans_start();
// first delete all payments
$this->db->delete('sales_payments', array('sale_id' => $sale_id));
// then delete all taxes on items
$this->db->delete('sales_items_taxes', array('sale_id' => $sale_id));
if ($update_inventory) {
// defect, not all item deletions will be undone??
// get array with all the items involved in the sale to update the inventory tracking
$items = $this->get_sale_items($sale_id)->result_array();
foreach($items as $item) {
// create query to update inventory tracking
$inv_data = array
(
'trans_date'=>date('Y-m-d H:i:s'),
'trans_items'=>$item['item_id'],
'trans_user'=>$employee_id,
'trans_comment'=>'Deleting sale ' . $sale_id,
'trans_location'=>$item['item_location'],
'trans_inventory'=>$item['quantity_purchased']
);
// update inventory
$this->Inventory->insert($inv_data);
// update quantities
$this->Item_quantities->change_quantity($item['item_id'],
$item['item_location'],
$item['quantity_purchased']);
}
}
// delete all items
$this->db->delete('sales_items', array('sale_id' => $sale_id));
// delete sale itself
$this->db->delete('sales', array('sale_id' => $sale_id));
// execute transaction
$this->db->trans_complete();
return $this->db->trans_status();
}
function get_sale_items($sale_id)
{
$this->db->from('sales_items');
$this->db->where('sale_id',$sale_id);
return $this->db->get();
}
function get_sale_payments($sale_id)
{
$this->db->from('sales_payments');
$this->db->where('sale_id',$sale_id);
return $this->db->get();
}
function get_customer($sale_id)
{
$this->db->from('sales');
$this->db->where('sale_id',$sale_id);
return $this->Customer->get_info($this->db->get()->row()->customer_id);
}
function get_vehicle($sale_id)
{
$this->db->from('sales');
$this->db->where('sale_id',$sale_id);
return $this->Vehicle->get_info($this->db->get()->row()->vehicle_id);
}
function invoice_number_exists($invoice_number,$sale_id='')
{
$this->db->from('sales');
$this->db->where('invoice_number', $invoice_number);
if (!empty($sale_id))
{
$this->db->where('sale_id !=', $sale_id);
}
$query=$this->db->get();
return ($query->num_rows()==1);
}
//We create a temp table that allows us to do easy report/sales queries
public function create_sales_items_temp_table()
{
if ($this->config->item('tax_included'))
{
$total = "1";
$subtotal = "(1 - (SUM(1 - 100/(100+percent))))";
$tax="(SUM(1 - 100/(100+percent)))";
}
else
{
$tax = "(SUM(percent)/100)";
$total = "(1+(SUM(percent/100)))";
$subtotal = "1";
}
$this->db->query("CREATE TEMPORARY TABLE ".$this->db->dbprefix('sales_items_temp')."
(SELECT date(sale_time) as sale_date, sale_time, ".$this->db->dbprefix('sales_items').".sale_id, comment,payments.payment_type, item_location, customer_id, vehicle_id, employee_id,
".$this->db->dbprefix('items').".item_id, supplier_id, quantity_purchased, item_cost_price, item_unit_price, SUM(percent) as item_tax_percent,
discount_percent, ROUND((item_unit_price*quantity_purchased-item_unit_price*quantity_purchased*discount_percent/100)*$subtotal,2) as subtotal,
".$this->db->dbprefix('sales_items').".line as line, serialnumber, ".$this->db->dbprefix('sales_items').".description as description,
ROUND((item_unit_price*quantity_purchased-item_unit_price*quantity_purchased*discount_percent/100)*$total, 2) as total,
ROUND((item_unit_price*quantity_purchased-item_unit_price*quantity_purchased*discount_percent/100)*$tax, 2) as tax,
ROUND((item_unit_price*quantity_purchased-item_unit_price*quantity_purchased*discount_percent/100)- (item_cost_price*quantity_purchased), 2) as profit
FROM ".$this->db->dbprefix('sales_items')."
INNER JOIN ".$this->db->dbprefix('sales')." ON ".$this->db->dbprefix('sales_items').'.sale_id='.$this->db->dbprefix('sales').'.sale_id'."
INNER JOIN ".$this->db->dbprefix('items')." ON ".$this->db->dbprefix('sales_items').'.item_id='.$this->db->dbprefix('items').'.item_id'."
INNER JOIN (SELECT sale_id, SUM(payment_amount) AS sale_payment_amount,
GROUP_CONCAT(payment_type SEPARATOR ', ') AS payment_type FROM " .$this->db->dbprefix('sales_payments') . " GROUP BY sale_id) AS payments
ON " . $this->db->dbprefix('sales_items') . '.sale_id'. "=" . "payments.sale_id
LEFT OUTER JOIN ".$this->db->dbprefix('suppliers')." ON ".$this->db->dbprefix('items').'.supplier_id='.$this->db->dbprefix('suppliers').'.person_id'."
LEFT OUTER JOIN ".$this->db->dbprefix('sales_items_taxes')." ON "
.$this->db->dbprefix('sales_items').'.sale_id='.$this->db->dbprefix('sales_items_taxes').'.sale_id'." and "
.$this->db->dbprefix('sales_items').'.item_id='.$this->db->dbprefix('sales_items_taxes').'.item_id'." and "
.$this->db->dbprefix('sales_items').'.line='.$this->db->dbprefix('sales_items_taxes').'.line'."
GROUP BY sale_id, item_id, line)");
//Update null item_tax_percents to be 0 instead of null$this->db->where('item_tax_percent IS NULL');
$this->db->update('sales_items_temp', array('item_tax_percent' => 0));
//Update null tax to be 0 instead of null
$this->db->where('tax IS NULL');
$this->db->update('sales_items_temp', array('tax' => 0));
//Update null subtotals to be equal to the total as these don't have tax
$this->db->query('UPDATE '.$this->db->dbprefix('sales_items_temp'). ' SET total=subtotal WHERE total IS NULL');
}
public function get_giftcard_value( $giftcardNumber )
{
if ( !$this->Giftcard->exists( $this->Giftcard->get_giftcard_id($giftcardNumber)))
return 0;
$this->db->from('giftcards');
$this->db->where('giftcard_number',$giftcardNumber);
return $this->db->get()->row()->value;
}
}
?>
答案 0 :(得分：0)
您必须为表ospos_people提供一个别名，以便可以在JOIN条件中引用它。否则，您将不得不在SQL查询中使用具有相同名称的表。
在您的情况下，您必须更新$this->db->join来电：
$this->db->join('people AS people1', 'people1.person_id = sales.customer_id', 'left');
$this->db->join('people AS people2', 'people2.person_id = sales.vehicle_id', 'left');
得到类似的东西：
LEFT JOIN ospos_people AS people1 ON people1.person_id = ospos_sales.customer_id
LEFT JOIN ospos_people AS people2 ON people2.person_id = ospos_sales.vehicle_id
注意：
您还可以在AND s的条件下使用OR，IN(...)，LEFT JOIN。请检查您是否可以使用以下内容：
$this->db->join('people', 'people.person_id IN (sales.vehicle_id, sales.customer_id)', 'left');
答案 1 :(得分：0)
当您多次与1个表进行连接时，您应该在查询中将别名foreach设为不同的表，例如op1, op2，如下所示：
SELECT ospos_people.first_name, ospos_people.last_name, invoice_number, amount_tendered, sale_time,
DATE_FORMAT( sale_time, '%d-%m-%Y' ) AS sale_date, ospos_sales.sale_id AS
sale_id, SUM(item_unit_price * quantity_purchased * (1 - discount_percent / 100))
AS amount_due FROM (ospos_sales) LEFT JOIN ospos_people ON ospos_people.person_id
= ospos_sales.customer_id AND ospos_people.person_id =
ospos_sales.vehicle_id JOIN ospos_sales_items ON ospos_sales_items.sale_id =
ospos_sales.sale_id LEFT JOIN (SELECT sale_id, SUM(payment_amount) AS
amount_tendered FROM ospos_sales_payments WHERE payment_type <> 'Check' GROUP BY
sale_id) AS payments ON payments.sale_id = op1.sale_id GROUP BY sale_id
ORDER BY sale_time desc LIMIT 25
如果您的2个表包含具有相同名称的列，您也可以参考具有您选择列的表格，例如ospos_people.first_name, ospos_people.last_name
答案 2 :(得分：0)
检查此行的查询
$postArr = array_map('array_filter', $postArr);
$postArr = array_filter( $postArr );
表与同一列连接多次。