Allowing a quantity of 0 in a PO item line when modifying caused strange result.
[fa-stable.git] / purchasing / po_entry_items.php
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 $page_security = 'SA_PURCHASEORDER';
13 $path_to_root = "..";
14 include_once($path_to_root . "/purchasing/includes/po_class.inc");
15 include_once($path_to_root . "/includes/session.inc");
16 include_once($path_to_root . "/purchasing/includes/purchasing_ui.inc");
17 include_once($path_to_root . "/reporting/includes/reporting.inc");
18
19 $js = '';
20 if ($use_popup_windows)
21         $js .= get_js_open_window(900, 500);
22 if ($use_date_picker)
23         $js .= get_js_date_picker();
24
25 if (isset($_GET['ModifyOrderNumber'])) 
26 {
27         page(_($help_context = "Modify Purchase Order #") . $_GET['ModifyOrderNumber'], false, false, "", $js);
28
29 else 
30 {
31         page(_($help_context = "Purchase Order Entry"), false, false, "", $js);
32 }
33
34 //---------------------------------------------------------------------------------------------------
35
36 check_db_has_suppliers(_("There are no suppliers defined in the system."));
37
38 check_db_has_purchasable_items(_("There are no purchasable inventory items defined in the system."));
39
40 //---------------------------------------------------------------------------------------------------------------
41
42 if (isset($_GET['AddedID'])) 
43 {
44         $order_no = $_GET['AddedID'];
45         $trans_type = ST_PURCHORDER;    
46
47         if (!isset($_GET['Updated']))
48                 display_notification_centered(_("Purchase Order has been entered"));
49         else
50                 display_notification_centered(_("Purchase Order has been updated") . " #$order_no");
51         display_note(get_trans_view_str($trans_type, $order_no, _("&View this order")), 0, 1);
52
53         display_note(print_document_link($order_no, _("&Print This Order"), true, $trans_type), 0, 1);
54
55         display_note(print_document_link($order_no, _("&Email This Order"), true, $trans_type, false, "", "", 1));
56
57         hyperlink_params($path_to_root . "/purchasing/po_receive_items.php", _("&Receive Items on this Purchase Order"), "PONumber=$order_no");
58
59         hyperlink_params($_SERVER['PHP_SELF'], _("Enter &Another Purchase Order"), "NewOrder=yes");
60         
61         hyperlink_no_params($path_to_root."/purchasing/inquiry/po_search.php", _("Select An &Outstanding Purchase Order"));
62         
63         display_footer_exit();  
64 }
65 //--------------------------------------------------------------------------------------------------
66
67 function copy_from_cart()
68 {
69         $_POST['supplier_id'] = $_SESSION['PO']->supplier_id;   
70         $_POST['OrderDate'] = $_SESSION['PO']->orig_order_date; 
71     $_POST['Requisition'] = $_SESSION['PO']->requisition_no;
72     $_POST['ref'] = $_SESSION['PO']->reference;
73         $_POST['Comments'] = $_SESSION['PO']->Comments;
74     $_POST['StkLocation'] = $_SESSION['PO']->Location;
75     $_POST['delivery_address'] = $_SESSION['PO']->delivery_address;     
76 }
77
78 function copy_to_cart()
79 {
80         $_SESSION['PO']->supplier_id = $_POST['supplier_id'];   
81         $_SESSION['PO']->orig_order_date = $_POST['OrderDate'];
82         $_SESSION['PO']->reference = $_POST['ref'];
83         $_SESSION['PO']->requisition_no = $_POST['Requisition'];
84         $_SESSION['PO']->Comments = $_POST['Comments']; 
85         $_SESSION['PO']->Location = $_POST['StkLocation'];
86         $_SESSION['PO']->delivery_address = $_POST['delivery_address'];
87 }
88 //--------------------------------------------------------------------------------------------------
89
90 function line_start_focus() {
91   global        $Ajax;
92
93   $Ajax->activate('items_table');
94   set_focus('_stock_id_edit');
95 }
96 //--------------------------------------------------------------------------------------------------
97
98 function unset_form_variables() {
99         unset($_POST['stock_id']);
100     unset($_POST['qty']);
101     unset($_POST['price']);
102     unset($_POST['req_del_date']);
103 }
104
105 //---------------------------------------------------------------------------------------------------
106
107 function handle_delete_item($line_no)
108 {
109         if($_SESSION['PO']->some_already_received($line_no) == 0)
110         {
111                 $_SESSION['PO']->remove_from_order($line_no);
112                 unset_form_variables();
113         } 
114         else 
115         {
116                 display_error(_("This item cannot be deleted because some of it has already been received."));
117         }       
118     line_start_focus();
119 }
120
121 //---------------------------------------------------------------------------------------------------
122
123 function handle_cancel_po()
124 {
125         global $path_to_root;
126         
127         //need to check that not already dispatched or invoiced by the supplier
128         if(($_SESSION['PO']->order_no != 0) && 
129                 $_SESSION['PO']->any_already_received() == 1)
130         {
131                 display_error(_("This order cannot be cancelled because some of it has already been received.") 
132                         . "<br>" . _("The line item quantities may be modified to quantities more than already received. prices cannot be altered for lines that have already been received and quantities cannot be reduced below the quantity already received."));
133                 return;
134         }
135         
136         if($_SESSION['PO']->order_no != 0)
137         {
138                 delete_po($_SESSION['PO']->order_no);
139         } else {
140                 unset($_SESSION['PO']);
141                 meta_forward($path_to_root.'/index.php','application=AP');
142         }
143
144         $_SESSION['PO']->clear_items();
145         $_SESSION['PO'] = new purch_order;
146
147         display_notification(_("This purchase order has been cancelled."));
148
149         hyperlink_params($path_to_root . "/purchasing/po_entry_items.php", _("Enter a new purchase order"), "NewOrder=Yes");
150         echo "<br>";
151
152         end_page();
153         exit;
154 }
155
156 //---------------------------------------------------------------------------------------------------
157
158 function check_data()
159 {
160         $dec = get_qty_dec($_POST['stock_id']);
161         $min = 1 / pow(10, $dec);
162     if (!check_num('qty',$min))
163     {
164         $min = number_format2($min, $dec);
165                 display_error(_("The quantity of the order item must be numeric and not less than ").$min);
166                 set_focus('qty');
167                 return false;
168     }
169
170     if (!check_num('price', 0))
171     {
172                 display_error(_("The price entered must be numeric and not less than zero."));
173                 set_focus('price');
174                 return false;      
175     }
176     if (!is_date($_POST['req_del_date'])){
177                 display_error(_("The date entered is in an invalid format."));
178                 set_focus('req_del_date');
179                 return false;            
180     }
181      
182     return true;        
183 }
184
185 //---------------------------------------------------------------------------------------------------
186
187 function handle_update_item()
188 {
189         $allow_update = check_data(); 
190
191         if ($allow_update)
192         {
193                 if ($_SESSION['PO']->line_items[$_POST['line_no']]->qty_inv > input_num('qty') ||
194                         $_SESSION['PO']->line_items[$_POST['line_no']]->qty_received > input_num('qty'))
195                 {
196                         display_error(_("You are attempting to make the quantity ordered a quantity less than has already been invoiced or received.  This is prohibited.") .
197                                 "<br>" . _("The quantity received can only be modified by entering a negative receipt and the quantity invoiced can only be reduced by entering a credit note against this item."));
198                         set_focus('qty');
199                         return;
200                 }
201         
202                 $_SESSION['PO']->update_order_item($_POST['line_no'], input_num('qty'), input_num('price'),
203                         $_POST['req_del_date']);
204                 unset_form_variables();
205         }       
206     line_start_focus();
207 }
208
209 //---------------------------------------------------------------------------------------------------
210
211 function handle_add_new_item()
212 {
213         $allow_update = check_data();
214         
215         if ($allow_update == true)
216         { 
217                 if (count($_SESSION['PO']->line_items) > 0)
218                 {
219                     foreach ($_SESSION['PO']->line_items as $order_item) 
220                     {
221
222                         /* do a loop round the items on the order to see that the item
223                         is not already on this order */
224                             if (($order_item->stock_id == $_POST['stock_id']) && 
225                                 ($order_item->Deleted == false)) 
226                             {
227                                         $allow_update = false;
228                                         display_error(_("The selected item is already on this order."));
229                             }
230                     } /* end of the foreach loop to look for pre-existing items of the same code */
231                 }
232
233                 if ($allow_update == true)
234                 {
235                         $sql = "SELECT description, units, mb_flag
236                                 FROM ".TB_PREF."stock_master WHERE stock_id = ".db_escape($_POST['stock_id']);
237
238                     $result = db_query($sql,"The stock details for " . $_POST['stock_id'] . " could not be retrieved");
239
240                     if (db_num_rows($result) == 0)
241                     {
242                                 $allow_update = false;
243                     }               
244
245                         if ($allow_update)
246                         {
247                                 $myrow = db_fetch($result);
248                                 $_SESSION['PO']->add_to_order ($_POST['line_no'], $_POST['stock_id'], input_num('qty'), 
249                                         $myrow["description"], input_num('price'), $myrow["units"],
250                                         $_POST['req_del_date'], 0, 0);
251
252                                 unset_form_variables();
253                                 $_POST['stock_id']      = "";
254                         } 
255                         else 
256                         {
257                              display_error(_("The selected item does not exist or it is a kit part and therefore cannot be purchased."));
258                         }
259
260                 } /* end of if not already on the order and allow input was true*/
261     }
262         line_start_focus();
263 }
264
265 //---------------------------------------------------------------------------------------------------
266
267 function can_commit()
268 {
269         global $Refs;
270
271         if (!is_date($_POST['OrderDate'])) 
272         {
273                 display_error(_("The entered order date is invalid."));
274                 set_focus('OrderDate');
275                 return false;
276         } 
277         
278         if (!$_SESSION['PO']->order_no) 
279         {
280         if (!$Refs->is_valid(get_post('ref'))) 
281         {
282                 display_error(_("There is no reference entered for this purchase order."));
283                         set_focus('ref');
284                 return false;
285         } 
286         
287         if (!is_new_reference(get_post('ref'), ST_PURCHORDER)) 
288         {
289                 display_error(_("The entered reference is already in use."));
290                         set_focus('ref');
291                 return false;
292         }
293         }
294         
295         if (get_post('delivery_address') == '')
296         {
297                 display_error(_("There is no delivery address specified."));
298                 set_focus('delivery_address');
299                 return false;
300         } 
301         
302         if (get_post('StkLocation') == '')
303         {
304                 display_error(_("There is no location specified to move any items into."));
305                 set_focus('StkLocation');
306                 return false;
307         } 
308         
309         if ($_SESSION['PO']->order_has_items() == false)
310         {
311         display_error (_("The order cannot be placed because there are no lines entered on this order."));
312         return false;
313         }
314                 
315         return true;
316 }
317
318 //---------------------------------------------------------------------------------------------------
319
320 function handle_commit_order()
321 {
322
323         if (can_commit())
324         {
325                 copy_to_cart();
326
327                 if ($_SESSION['PO']->order_no == 0)
328                 { 
329                         
330                         /*its a new order to be inserted */
331                         $order_no = add_po($_SESSION['PO']);
332                         new_doc_date($_SESSION['PO']->orig_order_date); 
333                         unset($_SESSION['PO']);
334                          
335                 meta_forward($_SERVER['PHP_SELF'], "AddedID=$order_no");        
336
337                 } 
338                 else 
339                 { 
340
341                         /*its an existing order need to update the old order info */
342                         $order_no = update_po($_SESSION['PO']);
343                         
344                         unset($_SESSION['PO']);
345                         
346                 meta_forward($_SERVER['PHP_SELF'], "AddedID=$order_no&Updated=1");      
347                 }
348         }       
349 }
350 //---------------------------------------------------------------------------------------------------
351 $id = find_submit('Delete');
352 if ($id != -1)
353         handle_delete_item($id);
354
355 if (isset($_POST['Commit']))
356 {
357         handle_commit_order();
358 }
359 if (isset($_POST['UpdateLine']))
360         handle_update_item();
361
362 if (isset($_POST['EnterLine']))
363         handle_add_new_item();
364
365 if (isset($_POST['CancelOrder'])) 
366         handle_cancel_po();
367
368 if (isset($_POST['CancelUpdate']))
369         unset_form_variables();
370
371 if (isset($_GET['ModifyOrderNumber']) && $_GET['ModifyOrderNumber'] != "")
372 {
373         create_new_po();
374         
375         $_SESSION['PO']->order_no = $_GET['ModifyOrderNumber']; 
376
377         /*read in all the selected order into the Items cart  */
378         read_po($_SESSION['PO']->order_no, $_SESSION['PO']);
379         
380         copy_from_cart();
381 }
382
383 if (isset($_POST['CancelUpdate']) || isset($_POST['UpdateLine'])) {
384         line_start_focus();
385 }
386
387 if (isset($_GET['NewOrder']))
388         create_new_po();
389
390 //---------------------------------------------------------------------------------------------------
391
392 start_form();
393
394 display_po_header($_SESSION['PO']);
395 echo "<br>";
396
397 display_po_items($_SESSION['PO']);
398
399 start_table($table_style2);
400 textarea_row(_("Memo:"), 'Comments', null, 70, 4);
401
402 end_table(1);
403
404 div_start('controls', 'items_table');
405 if ($_SESSION['PO']->order_has_items()) 
406 {
407         if ($_SESSION['PO']->order_no)
408                 submit_center_first('Commit', _("Update Order"), '', 'default');
409         else
410                 submit_center_first('Commit', _("Place Order"), '', 'default');
411         submit_center_last('CancelOrder', _("Cancel Order"));   
412 }
413 else
414         submit_center('CancelOrder', _("Cancel Order"), true, false, 'cancel');
415 div_end();
416 //---------------------------------------------------------------------------------------------------
417
418 end_form();
419 end_page();
420 ?>