includes/db/manufacturing_db.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 //----------------------------------------------------------------------------------------
  13 function get_demand_qty($stock_id, $location)
  14 {
  15         $sql = "SELECT SUM(line.quantity - line.qty_sent) AS QtyDemand
  16                         FROM ".TB_PREF."sales_order_details line,
  17                                 ".TB_PREF."sales_orders sorder
  18                                 WHERE line.order_no=sorder.order_no AND sorder.trans_type=".ST_SALESORDER
  19                                 ." AND sorder.trans_type=line.trans_type"
  20                                 ." AND line.stk_code = ".db_escape($stock_id);
  21         if ($location != "")
  22                 $sql .= " AND sorder.from_stk_loc =".db_escape($location);
  23
  24     $result = db_query($sql,"No transactions were returned");
  25         $row = db_fetch($result);
  26         if ($row === false)
  27                 return 0;
  28         return $row['QtyDemand'];
  29 }
  30
  31 $bom_list = array();
  32 $qoh_stock = NULL;
  33
  34 function load_stock_levels($location)
  35 {
  36         $date = date2sql(Today());
  37
  38         $qoh_stock = array();
  39         $sql = "SELECT stock_id, SUM(qty)
  40                 FROM ".TB_PREF."stock_moves
  41                 WHERE tran_date <= '$date'";
  42         if ($location != '')
  43                 $sql .= " AND loc_code = ".db_escape($location);
  44         $sql .= " GROUP BY stock_id";
  45
  46         $result = db_query($sql, "QOH calculation failed");
  47         while ($row = db_fetch($result))
  48                 $qoh_stock[$row[0]] = $row[1];
  49
  50         return $qoh_stock;
  51 }
  52
  53 // recursion fixed. Max 10 recursion levels.
  54 function stock_demand_manufacture($stock_id, $qty, $demand_id, $location, $level=0)
  55 {
  56         global $bom_list, $qoh_stock;
  57
  58         $demand = 0.0;
  59         if ($level > 10) {
  60                 display_warning("BOM Too many Manufacturing levels deep $level");
  61                 return $demand;
  62         }
  63         // Load all stock levels (stock moves) into $qoh_stock
  64         if ($qoh_stock == NULL)
  65                 $qoh_stock = load_stock_levels($location);
  66
  67         if (empty($qoh_stock[$stock_id]))
  68                 $stock_qty = 0;
  69         else
  70                 $stock_qty = $qoh_stock[$stock_id];
  71
  72         if ($qty <= $stock_qty)
  73                 return $demand;
  74         $bom = @$bom_list[$stock_id];
  75         if ($bom == NULL) {
  76                 $sql = "SELECT parent, component, quantity FROM "
  77                         .TB_PREF."bom WHERE parent = ".db_escape($stock_id);
  78                 if ($location != "") $sql .= " AND loc_code = ".db_escape($location);
  79                 $result = db_query($sql, "Could not search bom");
  80                 $bom = array();
  81                 // Even if we get no results, remember that fact
  82                 $bom[] = array($stock_id, '', 0);
  83                 while ($row = db_fetch_row($result)) {
  84                         $bom[] = array($row[0], $row[1], $row[2]);
  85                 }
  86                 db_free_result($result);
  87                 $bom_list[$stock_id] = $bom;
  88         }
  89         $len = count($bom);
  90         $i = 0;
  91         while ($i < $len) {
  92                 $row = $bom[$i];
  93                 $i++;
  94                 // Ignore the dummy entry
  95                 if ($row[1] == '') continue;
  96                 $q = $qty * $row[2];
  97                 if ($row[1] == $demand_id) $demand += $q;
  98                 $demand += stock_demand_manufacture($row[1], $q, $demand_id, $location, $level+1);
  99         }
 100         return $demand;
 101 }
 102
 103 // recursion fixed by Tom Moulton
 104 function get_demand_asm_qty($stock_id, $location)
 105 {
 106         $demand_qty = 0.0;
 107         $sql = "SELECT line.stk_code, SUM(line.quantity-line.qty_sent) AS Demmand
 108                    FROM ".TB_PREF."sales_order_details line,
 109                                 ".TB_PREF."sales_orders sorder,
 110                                 ".TB_PREF."stock_master item
 111                    WHERE sorder.order_no = line.order_no
 112                                 AND sorder.trans_type=".ST_SALESORDER
 113                          ." AND sorder.trans_type=line.trans_type
 114                                 AND line.quantity-line.qty_sent > 0
 115                                 AND item.stock_id=line.stk_code
 116                                 AND item.mb_flag='M'";
 117         if ($location != "")
 118                 $sql .= " AND sorder.from_stk_loc =".db_escape($location);
 119         $sql .= " GROUP BY line.stk_code";
 120     $result = db_query($sql, "No transactions were returned");
 121         while ($row = db_fetch_row($result)) {
 122                 $demand_qty += stock_demand_manufacture($row[0], $row[1], $stock_id, $location);
 123         }
 124         return $demand_qty;
 125 }
 126
 127 function get_on_porder_qty($stock_id, $location)
 128 {
 129         $sql = "SELECT SUM(line.quantity_ordered - line.quantity_received) AS qoo
 130                 FROM ".TB_PREF."purch_order_details line
 131                         INNER JOIN ".TB_PREF."purch_orders po ON line.order_no=po.order_no
 132                 WHERE line.item_code=".db_escape($stock_id);
 133         if ($location != "")
 134                 $sql .= " AND po.into_stock_location=".db_escape($location);
 135         $sql .= " AND line.item_code=".db_escape($stock_id);
 136         $qoo_result = db_query($sql,"could not receive quantity on order for item");
 137
 138         if (db_num_rows($qoo_result) == 1)
 139         {
 140                 $qoo_row = db_fetch_row($qoo_result);
 141                 $qoo =  $qoo_row[0];
 142         }
 143         else
 144         {
 145                 $qoo = 0;
 146         }
 147         return $qoo;
 148 }
 149
 150 function get_on_worder_qty($stock_id, $location)
 151 {
 152         $qoo = 0.0;
 153         $flag = get_mb_flag($stock_id);
 154         if ($flag == 'M')
 155         {
 156                 $sql = "SELECT SUM((units_reqd-units_issued)) AS qoo
 157                         FROM ".TB_PREF."workorders
 158                         WHERE stock_id=".db_escape($stock_id)
 159                                 ." AND released AND NOT closed";
 160
 161                 if ($location != "")
 162                         $sql .= " AND loc_code=".db_escape($location);
 163
 164                 $qoo_result = db_query($sql,"could not receive quantity on order for item");
 165                 if (db_num_rows($qoo_result) == 1)
 166                 {
 167                         $qoo_row = db_fetch_row($qoo_result);
 168                         $qoo = $qoo_row[0];
 169                 }
 170         }
 171         return $qoo;
 172 }
 173
 174 //--------------------------------------------------------------------------------------
 175
 176 function add_bom($selected_parent, $component, $workcentre_added, $loc_code, $quantity)
 177 {
 178         $sql = "INSERT INTO ".TB_PREF."bom (parent, component, workcentre_added, loc_code, quantity)
 179                 VALUES (".db_escape($selected_parent).", ".db_escape($component) . ","
 180                 .db_escape($workcentre_added) . ", ".db_escape($loc_code) . ", "
 181                 . $quantity . ")";
 182
 183         db_query($sql,"check failed");
 184 }
 185 //--------------------------------------------------------------------------------------
 186
 187 function update_bom($selected_parent, $selected_component, $workcentre_added, $loc_code, $quantity)
 188 {
 189         $sql = "UPDATE ".TB_PREF."bom SET workcentre_added=".db_escape($workcentre_added)
 190          . ",loc_code=".db_escape($loc_code) . ",
 191                 quantity= " . $quantity . "
 192                 WHERE parent=".db_escape($selected_parent) . "
 193                 AND id=".db_escape($selected_component);
 194         check_db_error("Could not update this bom component", $sql);
 195
 196         db_query($sql,"could not update bom");
 197 }
 198
 199 function delete_bom($selected_id)
 200 {
 201         $sql = "DELETE FROM ".TB_PREF."bom WHERE id=".db_escape($selected_id);
 202         db_query($sql,"Could not delete this bom components");
 203 }
 204
 205 function get_bom($item)
 206 {
 207         $sql = "SELECT bom.*, loc.location_name,
 208                 centre.name AS WorkCentreDescription,
 209         item.description, item.mb_flag AS ResourceType,
 210         item.material_cost AS ProductCost, units,
 211         bom.quantity * item.material_cost AS ComponentCost
 212         FROM ".TB_PREF."workcentres centre,
 213                 ".TB_PREF."locations loc,
 214                 ".TB_PREF."bom bom
 215                         INNER JOIN ".TB_PREF."stock_master item ON bom.component = item.stock_id
 216         WHERE bom.parent = ".db_escape($item)."
 217                 AND centre.id=bom.workcentre_added
 218                 AND bom.loc_code = loc.loc_code ORDER BY bom.id";
 219
 220         return db_query($sql, "The bill of material could not be retrieved");
 221 }
 222
 223 //--------------------------------------------------------------------------------------
 224
 225 function get_component_from_bom($selected_id)
 226 {
 227         $sql = "SELECT bom.*, item.description
 228                 FROM ".TB_PREF."bom bom,"
 229                         .TB_PREF."stock_master item
 230                 WHERE id=".db_escape($selected_id)."
 231                 AND item.stock_id=bom.component";
 232
 233         $result = db_query($sql, "could not get bom");
 234         return db_fetch($result);
 235 }
 236 //--------------------------------------------------------------------------------------
 237
 238 function has_bom($item)
 239 {
 240     $result = get_bom($item);
 241
 242     return (db_num_rows($result) != 0);
 243 }
 244
 245 //--------------------------------------------------------------------------------------
 246
 247 function is_component_already_on_bom($component, $workcentre_added, $loc_code, $selected_parent)
 248 {
 249         $sql = "SELECT component
 250                 FROM ".TB_PREF."bom
 251                 WHERE parent=".db_escape($selected_parent)."
 252                 AND component=".db_escape($component) . "
 253                 AND workcentre_added=".db_escape($workcentre_added) . "
 254                 AND loc_code=".db_escape($loc_code);
 255         $result = db_query($sql,"check failed");
 256
 257         return (db_num_rows($result) > 0);
 258 }
 259
 260 //--------------------------------------------------------------------------------------
 261
 262 function check_for_recursive_bom($ultimate_parent, $component_to_check)
 263 {
 264
 265         /* returns true ie 1 if the bom contains the parent part as a component
 266         ie the bom is recursive otherwise false ie 0 */
 267
 268         $sql = "SELECT component FROM ".TB_PREF."bom WHERE parent=".db_escape($component_to_check);
 269         $result = db_query($sql,"could not check recursive bom");
 270
 271         if ($result)
 272         {
 273                 while ($myrow = db_fetch_row($result))
 274                 {
 275                         if ($myrow[0] == $ultimate_parent)
 276                         {
 277                                 return 1;
 278                         }
 279
 280                         if (check_for_recursive_bom($ultimate_parent, $myrow[0]))
 281                         {
 282                                 return 1;
 283                         }
 284                 }
 285         }
 286
 287         return 0;
 288 }
 289