Files
opensourcepos/application/models/sale.php

486 lines
16 KiB
PHP

<?php
class Sale extends CI_Model
{
public function get_info($sale_id)
{
$this->db->select('first_name, last_name, email, comment, sale_payment_amount AS amount_tendered, payment_type,
invoice_number, sale_time, employee_id, customer_id, comments, sale_id, (sale_payment_amount - total) AS change_due', FALSE);
$this->db->select('DATE_FORMAT( sale_time, "%d-%m-%Y" ) AS sale_date', FALSE);
$this->db->select('CONCAT(first_name," ", last_name) AS customer_name', FALSE);
$this->db->select('SUM(item_unit_price * quantity_purchased * (1 - discount_percent / 100)) AS amount_due');
$this->db->from("sales_items_temp");
$this->db->join('people', 'people.person_id = sales_items_temp.customer_id', 'left');
$this->db->where('sales_items_temp.sale_id', $sale_id);
$this->db->order_by('sale_time', 'desc');
$this->db->group_by('sale_id');
return $this->db->get();
}
// get the sales data for the takings table
public function get_all($inputs)
{
$this->db->select('sale_id, sale_date, sale_time, SUM(quantity_purchased) AS items_purchased,
CONCAT(customer.first_name," ",customer.last_name) AS customer_name, SUM(subtotal) AS subtotal, SUM(total) AS total, SUM(tax) AS tax, SUM(cost) AS cost, SUM(profit) AS profit,
sale_payment_amount AS amount_tendered, SUM(total) AS amount_due, (sale_payment_amount - SUM(total)) AS change_due, payment_type, invoice_number', FALSE);
$this->db->from('sales_items_temp');
$this->db->join('people AS customer', 'sales_items_temp.customer_id = customer.person_id', 'left');
if (empty($inputs['search']))
{
$this->db->where('sale_date BETWEEN '. $this->db->escape($inputs['start_date']). ' AND '. $this->db->escape($inputs['end_date']));
}
else
{
if ($inputs['is_valid_receipt'])
{
$pieces = explode(' ',$inputs['search']);
$this->db->where('sales_items_temp.sale_id', $pieces[1]);
}
else
{
$this->db->like('last_name', $inputs['search']);
$this->db->or_like('first_name', $inputs['search']);
$this->db->or_like('CONCAT( customer.first_name, " ", last_name)', $inputs['search']);
}
}
if ($inputs['location_id'] != 'all')
{
$this->db->where('item_location', $inputs['location_id']);
}
if ($inputs['sale_type'] == 'sales')
{
$this->db->where('quantity_purchased > 0');
}
elseif ($inputs['sale_type'] == 'returns')
{
$this->db->where('quantity_purchased < 0');
}
if ($inputs['only_invoices'] != FALSE)
{
$this->db->where('invoice_number <> ', 'NULL');
}
if ($inputs['only_cash'] != FALSE)
{
$this->db->like('payment_type ', $this->lang->line('sales_cash'), 'after');
}
$this->db->group_by('sale_id');
$this->db->order_by('sale_date', 'desc');
if ($inputs['lines_per_page'] > 0)
{
$this->db->limit($inputs['lines_per_page'], $inputs['limit_from']);
}
return $this->db->get()->result_array();
}
function get_payments_summary($inputs)
{
// get payment summary
$this->db->select('payment_type, count(*) AS count, SUM(payment_amount) AS payment_amount', FALSE);
$this->db->from('sales');
$this->db->join('sales_payments', 'sales_payments.sale_id=sales.sale_id');
$this->db->join('people', 'people.person_id = sales.customer_id', 'left');
if (empty($inputs['search']))
{
$this->db->where('DATE(sale_time) BETWEEN '. $this->db->escape($inputs['start_date']). ' AND '. $this->db->escape($inputs['end_date']));
}
else
{
if ($inputs['is_valid_receipt'])
{
$pieces = explode(' ',$inputs['search']);
$this->db->where('sales.sale_id', $pieces[1]);
}
else
{
$this->db->like('last_name', $inputs['search']);
$this->db->or_like('first_name', $inputs['search']);
$this->db->or_like('CONCAT( first_name, " ", last_name)', $inputs['search']);
}
}
if ($inputs['sale_type'] == 'sales')
{
$this->db->where('payment_amount > 0');
}
elseif ($inputs['sale_type'] == 'returns')
{
$this->db->where('payment_amount < 0');
}
if ($inputs['only_invoices'] != FALSE)
{
$this->db->where('invoice_number <> ', 'NULL');
}
if ($inputs['only_cash'] != FALSE)
{
$this->db->like('payment_type ', $this->lang->line('sales_cash'), 'after');
}
$this->db->group_by("payment_type");
$payments = $this->db->get()->result_array();
// consider Gift Card as only one type of payment and do not show "Gift Card: 1, Gift Card: 2, etc." in the total
$gift_card_count = 0;
$gift_card_amount = 0;
foreach($payments as $key=>$payment)
{
if( strstr($payment['payment_type'], $this->lang->line('sales_giftcard')) != FALSE )
{
$gift_card_count += $payment['count'];
$gift_card_amount += $payment['payment_amount'];
unset($payments[$key]);
}
}
if( $gift_card_count > 0 && $gift_card_amount > 0 )
{
$payments[] = array('payment_type' => $this->lang->line('sales_giftcard'), 'count' => $gift_card_count, 'payment_amount' => $gift_card_amount);
}
return $payments;
}
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');
$this->db->from('sales');
$this->db->join('people', 'people.person_id = sales.customer_id');
$this->db->like('last_name', $search);
$this->db->or_like('first_name', $search);
$this->db->or_like('CONCAT( first_name, " ", last_name)', $search);
$this->db->order_by('last_name', "asc");
foreach($this->db->get()->result_array() as $result)
{
$suggestions[]=$result[ 'first_name' ].' '.$result[ 'last_name' ];
}
} else {
$suggestions[]=$search;
}
return $suggestions;
}
function get_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, $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) ? $customer_id : null,
'employee_id'=>$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 = $this->Item_quantity->get_item_quantity($item['item_id'], $item['item_location']);
$this->Item_quantity->save(array('quantity'=>$item_quantity->quantity - $item['quantity'],
'item_id'=>$item['item_id'],
'location_id'=>$item['item_location']), $item['item_id'], $item['item_location']);
//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);
$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']
));
}
}
}
$this->db->trans_complete();
if ($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
$this->Item_quantity->change_quantity($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 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 ($query->num_rows()==1);
}
//We create a temp table that allows us to do easy report/sales queries
function create_sales_items_temp_table()
{
if ($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";
}
$this->db->query("CREATE TEMPORARY TABLE IF NOT EXISTS ".$this->db->dbprefix('sales_items_temp')."
(SELECT date(sale_time) as sale_date, sale_time, ".$this->db->dbprefix('sales_items').".sale_id, comment, payments.payment_type, payments.sale_payment_amount, item_location, customer_id, employee_id,
".$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)*$tax, 2) as tax,
ROUND((item_unit_price*quantity_purchased-item_unit_price*quantity_purchased*discount_percent/100)- (item_cost_price*quantity_purchased), 2) as profit,
(item_cost_price*quantity_purchased) as cost,
invoice_number
FROM ".$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(CONCAT(payment_type,' ',payment_amount) 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');
}
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;
}
}
?>