includes/db/inventory_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 function get_qoh_on_date($stock_id, $location=null, $date_=null, $exclude=0)
  13 {
  14         if ($date_ == null)
  15                 $date_ = Today();
  16
  17         $date = date2sql($date_);
  18
  19         $sql = "SELECT SUM(qty) FROM ".TB_PREF."stock_moves
  20                 WHERE stock_id=".db_escape($stock_id)."
  21                 AND tran_date <= '$date'";
  22
  23         if ($location != null)
  24                 $sql .= " AND loc_code = ".db_escape($location);
  25
  26         $result = db_query($sql, "QOH calulcation failed");
  27
  28         $myrow = db_fetch_row($result);
  29         if ($exclude > 0)
  30         {
  31                 $sql = "SELECT SUM(qty) FROM ".TB_PREF."stock_moves
  32                         WHERE stock_id=".db_escape($stock_id)
  33                         ." AND type=".db_escape($exclude)
  34                         ." AND tran_date = '$date'";
  35
  36                 $result = db_query($sql, "QOH calulcation failed");
  37                 $myrow2 = db_fetch_row($result);
  38                 if ($myrow2 !== false)
  39                         $myrow[0] -= $myrow2[0];
  40         }
  41
  42         return $myrow[0];
  43 }
  44
  45 //--------------------------------------------------------------------------------------
  46
  47 function get_item_edit_info($stock_id)
  48 {
  49         $sql = "SELECT material_cost + labour_cost + overhead_cost AS standard_cost, units, decimals
  50                 FROM ".TB_PREF."stock_master,".TB_PREF."item_units
  51                 WHERE stock_id=".db_escape($stock_id)
  52                 ." AND ".TB_PREF."stock_master.units=".TB_PREF."item_units.abbr";
  53         $result = db_query($sql, "The standard cost cannot be retrieved");
  54
  55         return db_fetch($result);
  56 }
  57
  58 //--------------------------------------------------------------------------------------
  59
  60 function get_standard_cost($stock_id)
  61 {
  62         $sql = "SELECT IF(s.mb_flag='D', 0, material_cost + labour_cost + overhead_cost) AS std_cost
  63                 FROM ".TB_PREF."stock_master s WHERE stock_id=".db_escape($stock_id);
  64         $result = db_query($sql, "The standard cost cannot be retrieved");
  65
  66         $myrow = db_fetch_row($result);
  67
  68         return $myrow[0];
  69 }
  70
  71 //--------------------------------------------------------------------------------------
  72
  73 function is_inventory_item($stock_id)
  74 {
  75         $sql = "SELECT stock_id FROM ".TB_PREF."stock_master
  76                 WHERE stock_id=".db_escape($stock_id)." AND mb_flag <> 'D'";
  77         $result = db_query($sql, "Cannot query is inventory item or not");
  78
  79         return db_num_rows($result) > 0;
  80 }
  81
  82 //-------------------------------------------------------------------
  83
  84 function last_negative_stock_begin_date($stock_id, $to)
  85 {
  86         $to = date2sql($to);
  87         $sql ="SET @q = 0";
  88         db_query($sql);
  89         $sql = "SET @flag = 0";
  90         db_query($sql);
  91         $sql = "SELECT SUM(qty), @q:= @q + qty, IF(@q < 0 AND @flag=0, @flag:=1,@flag:=0), IF(@q < 0 AND @flag=1, tran_date,'') AS begin_date
  92                 FROM ".TB_PREF."stock_moves
  93                 WHERE stock_id=".db_escape($stock_id)." AND tran_date<='$to'
  94                 AND qty <> 0
  95                 GROUP BY stock_id ORDER BY tran_date";
  96
  97         $result = db_query($sql, "The dstock moves could not be retrieved");
  98         $row = db_fetch_row($result);
  99         return $row[3];
 100 }
 101
 102 //-------------------------------------------------------------------
 103 // Newly written
 104 function last_negative_stock_trans_id($stock_id, $to)
 105 {
 106         $sql = "SELECT * from ".TB_PREF."stock_moves
 107                 WHERE stock_id=".db_escape($stock_id)."
 108                 AND qty <> 0 order by trans_id asc";
 109
 110         $result = db_query($sql, "The query on stock moves failed.");
 111
 112         $qty = 0;
 113         $flag = 0;
 114         $negative_trans_id = 1;
 115
 116         while ($myrow = db_fetch($result))
 117         {
 118                 $qty += $myrow['qty'];
 119                 if ($qty < 0 && $flag == 0)
 120                 {
 121                         $flag = 1;
 122                         $negative_trans_id = $myrow['trans_id'];
 123                 }
 124                 if ($qty > 0)
 125                         $flag = 0;
 126         }
 127
 128         return $negative_trans_id;
 129 }
 130
 131 //-------------------------------------------------------------------
 132
 133 function get_deliveries_between($stock_id, $from, $to)
 134 {
 135         $from = date2sql($from);
 136         $to = date2sql($to);
 137         $sql = "SELECT SUM(-qty), SUM(-qty*standard_cost) FROM ".TB_PREF."stock_moves
 138                 WHERE type=".ST_CUSTDELIVERY." AND stock_id=".db_escape($stock_id)." AND
 139                         tran_date>='$from' AND tran_date<='$to' GROUP BY stock_id";
 140
 141         $result = db_query($sql, "The deliveries could not be updated");
 142         return db_fetch_row($result);
 143 }
 144
 145 //Newly written
 146 function get_deliveries_from_trans($stock_id, $from)
 147 {
 148         // -ve qty is delivery either by ST_CUSTDELIVERY or inventory adjustment
 149         $sql = "SELECT SUM(-qty), SUM(-qty*standard_cost) FROM ".TB_PREF."stock_moves
 150                 WHERE stock_id=".db_escape($stock_id)." AND qty < 0 AND
 151                         trans_id>='$from' GROUP BY stock_id";
 152         $result = db_query($sql, "The deliveries could not be updated");
 153         $row = db_fetch_row($result);
 154
 155         display_notification('Row0 - '.$row[0].' Row1- '.$row[1]);
 156
 157         //return $row;
 158
 159         // Get Std cost of previsous transaction before the cut-over delivery
 160         // This is useful to get inventory valuation
 161         $prev_trans = $from - 1;
 162         display_notification('From - '.$from.' Prev- '.$prev_trans);
 163         $sql = "SELECT standard_cost FROM ".TB_PREF."stock_moves
 164                 WHERE stock_id=".db_escape($stock_id)." AND
 165                         trans_id ='$prev_trans'";
 166         $result = db_query($sql, "The deliveries could not be updated");
 167         $cost = db_fetch_row($result);
 168
 169         display_notification('Last Delivery Cost - '.$cost[0]);
 170
 171         // Adjusting QOH valuation
 172         $sql = "SELECT SUM(qty) FROM ".TB_PREF."stock_moves
 173                 WHERE stock_id=".db_escape($stock_id)." AND
 174                         trans_id<'$from' GROUP BY stock_id";
 175         $result = db_query($sql, "The deliveries could not be updated");
 176         $qoh = db_fetch_row($result);
 177
 178         display_notification('QOH before last delivery - '.$qoh[0]);
 179
 180         $qty = $row[0] - $qoh[0]; //Qoh is minus from delivered in -ve
 181         $final_cost = $row[1] - $qoh[0]*$cost[0];
 182
 183         display_notification('Qty - '.$qty.' cost- '.$final_cost);
 184
 185         return array($qty,$final_cost);
 186 }
 187
 188 //Newly written
 189 function get_purchases_from_trans($stock_id, $from)
 190 {
 191         // Calculate All inward stock moves i.e. qty > 0
 192         $sql = "SELECT SUM(qty), SUM(qty*standard_cost) FROM ".TB_PREF."stock_moves
 193                 WHERE stock_id=".db_escape($stock_id)." AND qty > 0 AND
 194                         trans_id>'$from' GROUP BY stock_id";
 195         $result = db_query($sql, "The deliveries could not be updated");
 196         $row = db_fetch_row($result);
 197
 198         display_notification('Purchase Qty - '.$row[0].' Cost- '.$row[1]);
 199
 200         return $row;
 201 }
 202
 203 //-------------------------------------------------------------------
 204 /* Original Code V0 Leave as is a while
 205 function adjust_deliveries_v0($stock_id, $material_cost, $to)
 206 {
 207         if (!is_inventory_item($stock_id))
 208                 return;
 209         $from = last_negative_stock_begin_date($stock_id, $to);
 210         if ($from == false || $from == "")
 211                 return;
 212         $from = sql2date($from);
 213         $row = get_deliveries_between($stock_id, $from, $to);
 214         if ($row == false)
 215                 return;
 216         $old_cost = $row[1];
 217         $new_cost = $row[0] * $material_cost;
 218         $diff = $new_cost - $old_cost;
 219         if ($diff != 0)
 220         {
 221                 $update_no = get_next_trans_no(ST_COSTUPDATE);
 222                 if (!is_date_in_fiscalyear($to))
 223                         $to = end_fiscalyear();
 224
 225                 $stock_gl_code = get_stock_gl_code($stock_id);
 226
 227                 $memo_ = sprintf(_("Cost was %s changed to %s for item '%s'"),
 228                         $old_cost, $new_cost, $stock_id);
 229                 add_gl_trans_std_cost(ST_COSTUPDATE, $update_no, $to, $stock_gl_code["cogs_account"],
 230                         $stock_gl_code["dimension_id"], $stock_gl_code["dimension2_id"], $memo_, $diff);
 231
 232                 add_gl_trans_std_cost(ST_COSTUPDATE, $update_no, $to, $stock_gl_code["inventory_account"],
 233                         0, 0, $memo_, -$diff);
 234                 add_audit_trail(ST_COSTUPDATE, $update_no, $to);
 235         }
 236 }
 237 */
 238 //New written function
 239 function adjust_deliveries($stock_id, $material_cost, $to)
 240 {
 241         if (!is_inventory_item($stock_id))
 242                 return;
 243
 244         $from = last_negative_stock_trans_id($stock_id, $to);
 245         if ($from == false || $from == "")
 246                 return;
 247
 248         $row = get_deliveries_from_trans($stock_id, $from);
 249
 250         if ($row == false)
 251                 return;
 252         $old_sales_cost = $row[1];
 253         $new_sales_cost = $row[0] * $material_cost;
 254         $sales_diff = $new_sales_cost - $old_sales_cost;
 255
 256         $row = get_purchases_from_trans($stock_id, $from);
 257         $purchase_diff = 0;
 258         $old_purchase_cost = 0;
 259         if ($row != false)
 260         {
 261                 $old_purchase_cost = $row[1];
 262                 $new_purchase_cost = $row[0] * $material_cost;
 263                 $purchase_diff = $new_purchase_cost - $old_purchase_cost;
 264         }
 265
 266         $diff =  $sales_diff - $purchase_diff;
 267
 268         display_notification('Sales Diff - '.$sales_diff.' Purchase Diff - '.$purchase_diff);
 269
 270         if ($diff != 0)
 271         {
 272                 $update_no = get_next_trans_no(ST_COSTUPDATE);
 273                 if (!is_date_in_fiscalyear($to))
 274                         $to = end_fiscalyear();
 275
 276                 $stock_gl_code = get_stock_gl_code($stock_id);
 277
 278                 $dec = user_price_dec();
 279                 $old_cost = -round2($old_sales_cost-$old_purchase_cost,$dec);
 280                 $new_cost = -round2($new_sales_cost-$new_purchase_cost,$dec);
 281
 282                 $memo_ = _("Cost was ") . $old_cost. _(" changed to ") . $new_cost . _(" for item ")."'$stock_id'";
 283                 add_gl_trans_std_cost(ST_COSTUPDATE, $update_no, $to, $stock_gl_code["cogs_account"],
 284                         $stock_gl_code["dimension_id"], $stock_gl_code["dimension2_id"], $memo_, $diff);
 285
 286                 add_gl_trans_std_cost(ST_COSTUPDATE, $update_no, $to, $stock_gl_code["inventory_account"], 0, 0, $memo_,
 287                         -$diff);
 288                 add_audit_trail(ST_COSTUPDATE, $update_no, $to);
 289         }
 290 }
 291
 292 function get_stock_gl_code($stock_id)
 293 {
 294         /*Gets the GL Codes relevant to the item account  */
 295
 296         $sql = "SELECT inventory_account, cogs_account,
 297                 adjustment_account, sales_account, assembly_account, dimension_id, dimension2_id FROM
 298                 ".TB_PREF."stock_master WHERE stock_id = ".db_escape($stock_id);
 299
 300         $get = db_query($sql,"retreive stock gl code");
 301         return db_fetch($get);
 302 }
 303
 304 //--------------------------------------------------------------------------------------
 305
 306 // $date_ - display / non-sql date
 307 // $std_cost - in HOME currency
 308 // $show_or_hide - wil this move be visible in reports, etc
 309 // $price - in $person_id's currency
 310
 311 function add_stock_move($type, $stock_id, $trans_no, $location,
 312     $date_, $reference, $quantity, $std_cost, $person_id=0, $show_or_hide=1,
 313     $price=0, $discount_percent=0, $error_msg="")
 314 {
 315         // do not add a stock move if it's a non-inventory item
 316         if (!is_inventory_item($stock_id))
 317                 return null;
 318
 319         $date = date2sql($date_);
 320
 321         $sql = "INSERT INTO ".TB_PREF."stock_moves (stock_id, trans_no, type, loc_code,
 322                 tran_date, person_id, reference, qty, standard_cost, visible, price,
 323                 discount_percent) VALUES (".db_escape($stock_id)
 324                 .", ".db_escape($trans_no).", ".db_escape($type)
 325                 .",     ".db_escape($location).", '$date', "
 326                 .db_escape($person_id).", ".db_escape($reference).", "
 327                 .db_escape($quantity).", ".db_escape($std_cost).","
 328                 .db_escape($show_or_hide).", ".db_escape($price).", "
 329                 .db_escape($discount_percent).")";
 330
 331         if ($error_msg == "")
 332                 $error_msg = "The stock movement record cannot be inserted";
 333
 334         db_query($sql, $error_msg);
 335
 336         return db_insert_id();
 337 }
 338
 339 function update_stock_move_pid($type, $stock_id, $from, $to, $pid, $cost)
 340 {
 341         $from = date2sql($from);
 342         $to = date2sql($to);
 343                 $sql = "UPDATE ".TB_PREF."stock_moves SET standard_cost=".db_escape($cost)
 344                         ." WHERE type=".db_escape($type)
 345                         ."      AND stock_id=".db_escape($stock_id)
 346                         ."  AND tran_date>='$from' AND tran_date<='$to'
 347                         AND person_id = ".db_escape($pid);
 348         db_query($sql, "The stock movement standard_cost cannot be updated");
 349 }
 350
 351 //--------------------------------------------------------------------------------------------------
 352
 353 function get_stock_moves($type, $type_no, $visible=false)
 354 {
 355         $sql = "SELECT ".TB_PREF."stock_moves.*, ".TB_PREF."stock_master.description, "
 356                 .TB_PREF."stock_master.units,".TB_PREF."locations.location_name,"
 357                 .TB_PREF."stock_master.material_cost + "
 358                         .TB_PREF."stock_master.labour_cost + "
 359                         .TB_PREF."stock_master.overhead_cost AS FixedStandardCost
 360                 FROM ".TB_PREF."stock_moves,".TB_PREF."locations,".TB_PREF."stock_master
 361                 WHERE ".TB_PREF."stock_moves.stock_id = ".TB_PREF."stock_master.stock_id
 362                 AND ".TB_PREF."locations.loc_code=".TB_PREF."stock_moves.loc_code
 363                 AND type=".db_escape($type)." AND trans_no=".db_escape($type_no)." ORDER BY trans_id";
 364         if ($visible)
 365                 $sql .= " AND ".TB_PREF."stock_moves.visible=1";
 366
 367         return db_query($sql, "Could not get stock moves");
 368 }
 369
 370 //--------------------------------------------------------------------------------------------------
 371
 372 function void_stock_move($type, $type_no)
 373 {
 374         $sql = "UPDATE ".TB_PREF."stock_moves SET qty=0, price=0, discount_percent=0,
 375                 standard_cost=0 WHERE type=".db_escape($type)." AND trans_no=".db_escape($type_no);
 376
 377         db_query($sql, "Could not void stock moves");
 378 }
 379
 380 //--------------------------------------------------------------------------------------------------
 381
 382 function get_location_name($loc_code)
 383 {
 384         $sql = "SELECT location_name FROM ".TB_PREF."locations WHERE loc_code="
 385                 .db_escape($loc_code);
 386
 387         $result = db_query($sql, "could not retreive the location name for $loc_code");
 388
 389         if (db_num_rows($result) == 1)
 390         {
 391                 $row = db_fetch_row($result);
 392                 return $row[0];
 393         }
 394
 395         display_db_error("could not retreive the location name for $loc_code", $sql, true);
 396 }
 397
 398 //--------------------------------------------------------------------------------------------------
 399
 400
 401 ?>