purchasing/includes/po_class.inc

   1 <?php
   2 /**********************************************************************
   3     Copyright (C) FrontAccounting, LLC.
   4         Released under the terms of the GNU General Public License, GPL,
   5         as published by the Free Software Foundation, either version 3
   6         of the License, or (at your option) any later version.
   7     This program is distributed in the hope that it will be useful,
   8     but WITHOUT ANY WARRANTY; without even the implied warranty of
   9     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
  10     See the License here <http://www.gnu.org/licenses/gpl-3.0.html>.
  11 ***********************************************************************/
  12 /* Definition of the purch_order class to hold all the information for a purchase order and delivery
  13 */
  14
  15 class purch_order
  16 {
  17
  18         var $trans_type; // order/grn/invoice (direct)
  19         var $line_items;
  20         var $curr_code;
  21         var $supp_ref;
  22         var $delivery_address;
  23         var $Comments;
  24         var $Location;
  25         var $supplier_id;
  26         var $supplier_name;
  27         var $orig_order_date;
  28         var $due_date;
  29         var $order_no; /*Only used for modification of existing orders otherwise only established when order committed */
  30         var $lines_on_order = 0;
  31         var $credit;
  32         var $tax_group_id;
  33         var $tax_group_array = null; // saves db queries
  34         var $tax_included; // type of prices
  35         var $terms;
  36         var $ex_rate;
  37         var $cash_account;
  38         var $dimension,
  39                 $dimension2;
  40
  41         var $reference;
  42         var $tax_overrides = array();           // array of taxes manually inserted during sales invoice entry (direct invoice)
  43
  44         var $prep_amount = 0; // prepayment required
  45         var $alloc; // sum of payments allocated
  46         var $prepayments = array();
  47
  48         var $fixed_asset = false;
  49
  50         function __construct()
  51         {
  52                 /*Constructor function initialises a new purchase order object */
  53                 $this->line_items = array();
  54                 $this->lines_on_order = $this->order_no = $this->supplier_id = 0;
  55         }
  56
  57         function set_supplier($supplier_id, $supplier_name, $curr_code, $tax_group_id, $tax_included)
  58         {
  59                 $this->supplier_id = $supplier_id;
  60                 $this->supplier_name = $supplier_name;
  61                 $this->curr_code = $curr_code;
  62                 $this->tax_group_id = $tax_group_id;
  63                 $this->tax_included = $tax_included;
  64                 $this->tax_group_array = get_tax_group_items_as_array($tax_group_id);
  65         }
  66
  67         function add_to_order($line_no, $stock_id, $qty, $item_descr, $price, $uom, $req_del_date, $qty_inv, $qty_recd)
  68         {
  69                 if (isset($qty) && $qty != 0)
  70                 {
  71                         $this->line_items[$line_no] = new po_line_details($line_no, $stock_id, $item_descr, $qty, $price, $uom,
  72                                 $req_del_date, $qty_inv, $qty_recd);
  73                         $this->lines_on_order++;
  74                         return 1;
  75                 }
  76                 return 0;
  77         }
  78
  79         function update_order_item($line_no, $qty, $price, $req_del_date, $description="")
  80         {
  81                 if ($description != "")
  82                         $this->line_items[$line_no]->item_description = $description;
  83                 $this->line_items[$line_no]->quantity = $qty;
  84                 $this->line_items[$line_no]->price = $price;
  85                 $this->line_items[$line_no]->req_del_date = $req_del_date;
  86                 $this->line_items[$line_no]->item_description = $description;
  87         }
  88
  89         function remove_from_order($line_no)
  90         {
  91                 array_splice($this->line_items, $line_no, 1);
  92         }
  93
  94         function order_has_items()
  95         {
  96                 return count($this->line_items) != 0;
  97         }
  98
  99         function clear_items()
 100         {
 101         unset($this->line_items);
 102                 $this->line_items = array();
 103
 104                 $this->lines_on_order = 0;
 105                 $this->order_no = 0;
 106         }
 107
 108
 109         function any_already_received()
 110         {
 111                 /* Checks if there have been deliveries or invoiced entered against any of the line items */
 112                 if (count($this->line_items) > 0)
 113                 {
 114                         foreach ($this->line_items as $ordered_items)
 115                         {
 116                                 if ($ordered_items->qty_received != 0 || $ordered_items->qty_inv != 0)
 117                                 {
 118                                         return 1;
 119                                 }
 120                         }
 121                 }
 122                 return 0;
 123         }
 124
 125         function some_already_received($line_no)
 126         {
 127                 /* Checks if there have been deliveries or amounts invoiced against a specific line item */
 128                 if (count($this->line_items) > 0)
 129                 {
 130                         if ($this->line_items[$line_no]->qty_received != 0 ||
 131                                 $this->line_items[$line_no]->qty_inv != 0)
 132                         {
 133                                 return 1;
 134                         }
 135                 }
 136                 return 0;
 137         }
 138
 139         //
 140         //      Returns taxes for PO/GRN.
 141         //      $receival=true in purchase receive context.
 142         //
 143         function get_taxes($shipping_cost=null, $receival=false)
 144         {
 145                 $items = array();
 146                 $prices = array();
 147                 if($shipping_cost==null)
 148                         $shipping_cost = 0;//$this->freight_cost;
 149
 150                 foreach ($this->line_items as $ln_itm) {
 151                         $items[] = $ln_itm->stock_id;
 152                         $prices[] = round($ln_itm->price * ($receival ? $ln_itm->receive_qty : $ln_itm->quantity),  user_price_dec());
 153                 }
 154                 $taxes = get_tax_for_items($items, $prices, $shipping_cost,
 155                   $this->tax_group_id, $this->tax_included,  $this->tax_group_array);
 156
 157         // Adjustment for swiss franken, we always have 5 rappen = 1/20 franken
 158             if ($this->curr_code == 'CHF') {
 159                         $val = $taxes['1']['Value'];
 160                         $val1 = (floatval((intval(round(($val*20),0)))/20));
 161                         $taxes['1']['Value'] = $val1;
 162                 }
 163                 foreach($this->tax_overrides as $id => $value) // add values entered manually
 164                 {
 165                         $taxes[$id]['Override'] = $value;
 166                 }
 167                 return $taxes;
 168         }
 169
 170         /*
 171                 Returns order value including all taxes
 172         */
 173         function get_trans_total() {
 174
 175                 $total = 0;
 176                 $dec = user_price_dec();
 177
 178                 foreach ($this->line_items as $ln_itm) {
 179                         $items[] = $ln_itm->stock_id;
 180                         $value = round($ln_itm->quantity * $ln_itm->price, $dec);
 181                         $prices[] =$value;
 182                         $total += $value;
 183                 }
 184
 185                 if (!$this->tax_included ) {
 186                         $taxes = get_tax_for_items($items, $prices, 0, $this->tax_group_id,
 187                         $this->tax_included,  $this->tax_group_array);
 188
 189                         foreach($taxes as $tax)
 190                                 $total += round($tax['Value'], $dec);
 191                 }
 192                 return $total;
 193         }
 194
 195 } /* end of class defintion */
 196
 197 class po_line_details
 198 {
 199
 200         var $line_no;
 201         var $po_detail_rec;
 202         var $grn_item_id;
 203         var $stock_id;
 204         var $item_description;
 205         var $price;
 206         var $units;
 207         var $req_del_date;
 208         var $tax_type;
 209         var $tax_type_name;
 210
 211         var $quantity;          // current/entry quantity of PO line
 212         var $qty_inv;   // quantity already invoiced against this line
 213         var $receive_qty;       // current/entry GRN quantity
 214         var $qty_received;      // quantity already received against this line
 215
 216         var $standard_cost;
 217         var $descr_editable;
 218
 219         function __construct($line_no, $stock_item, $item_descr, $qty, $prc, $uom, $req_del_date,
 220                 $qty_inv, $qty_recd, $grn_item_id=0)
 221         {
 222
 223                 /* Constructor function to add a new LineDetail object with passed params */
 224                 $this->line_no = $line_no;
 225                 $this->stock_id = $stock_item;
 226                 $item_row = get_item($stock_item);
 227                 if (!$item_row)
 228                         return;
 229
 230                 $this->descr_editable = $item_row["editable"];
 231                 if ($item_descr == null || !$this->descr_editable)
 232                         $this->item_description = $item_row["description"];
 233                 else
 234                         $this->item_description = $item_descr;
 235                 $this->quantity = $qty;
 236                 $this->req_del_date = $req_del_date;
 237                 $this->price = $prc;
 238 //              $this->units = $uom;
 239                 $this->tax_type = $item_row["tax_type_id"];
 240                 $this->tax_type_name = $item_row["tax_type_name"];
 241                 $this->units = $item_row["units"];
 242                 $this->qty_received = $qty_recd;
 243                 $this->qty_inv = $qty_inv;
 244                 $this->receive_qty = 0; /*initialise these last two only */
 245                 $this->standard_cost =0;
 246                 $this->grn_item_id = $grn_item_id;
 247         }
 248
 249         // Deprecated, use with care. If you need line value as it is calculated in invoice, use taxfree_charge_value below.
 250         function taxfree_charge_price($po)
 251         {
 252                 return get_tax_free_price_for_item($this->stock_id, $this->price,
 253                   $po->tax_group_id, $po->tax_included, $po->tax_group_array);
 254         }
 255
 256         //
 257         // GRN line tax free value.
 258         //
 259         function taxfree_charge_value($po)
 260         {
 261                 return get_tax_free_price_for_item($this->stock_id, $this->receive_qty*$this->price,
 262                   $po->tax_group_id, $po->tax_included, $po->tax_group_array);
 263         }
 264 }
 265