| 1 |
<?php |
| 2 |
/********************************************************** |
| 3 |
Function Library: scribe_fix.php |
| 4 |
Original Author: Paul Bramscher <brams006@tc.umn.edu> |
| 5 |
Last Modified: 10.29.2003 |
| 6 |
*********************************************************** |
| 7 |
Comments: |
| 8 |
This library brings together CourseLib/PageScribe page |
| 9 |
debugging and fixing algorithms. |
| 10 |
*********************************************************** |
| 11 |
errorTrap |
| 12 |
genCalc |
| 13 |
isOrphan |
| 14 |
purgeOrphans |
| 15 |
purgeRelationships |
| 16 |
scribeFix |
| 17 |
updateGenerations |
| 18 |
updateOrders |
| 19 |
updateOrphans |
| 20 |
**********************************************************/ |
| 21 |
|
| 22 |
/********************************************************** |
| 23 |
Function: errorTrap |
| 24 |
Author: Paul Bramscher |
| 25 |
Last Modified: 10.28.2003 |
| 26 |
*********************************************************** |
| 27 |
Purpose: |
| 28 |
Debugger available for CLPS system, to check for various |
| 29 |
sorts of page integrity. If page_debug in the page table |
| 30 |
is equal to 1, then this function is useful to call from |
| 31 |
scribe.phtml automatically. Otherwise, it's called |
| 32 |
manually from the DBA console. |
| 33 |
**********************************************************/ |
| 34 |
function errorTrap($con, $page_id){ |
| 35 |
|
| 36 |
// Fetch title |
| 37 |
$page_title = lookupField($con, "page", "page_id", $page_id, "page_title"); |
| 38 |
|
| 39 |
// Overall status |
| 40 |
$passed = 1; |
| 41 |
|
| 42 |
printf("<center>\n"); |
| 43 |
printf("<table width=\"90%%\" class=\"backLight\" border=\"1\">\n"); |
| 44 |
printf("<tr><td class=\"cellPlain\">Debug Data: %s (#%d)</td></tr>\n", $page_title, $page_id); |
| 45 |
printf("<tr><td><br>\n"); |
| 46 |
|
| 47 |
/*********************** |
| 48 |
** Basic Element Data ** |
| 49 |
***********************/ |
| 50 |
|
| 51 |
printf("<b>Element Data:</b><br>"); |
| 52 |
|
| 53 |
// Distinct orders |
| 54 |
$sql = "SELECT DISTINCT element_order FROM element WHERE page_id =" |
| 55 |
. $page_id; |
| 56 |
$rs = mysql_query($sql, $con); |
| 57 |
$num_orders = mysql_num_rows($rs); |
| 58 |
printf("Unique orders: %d<br>\n", $num_orders); |
| 59 |
|
| 60 |
// Number of rows (should be the same) |
| 61 |
$sql = "SELECT element_id FROM element WHERE page_id = " |
| 62 |
. $page_id; |
| 63 |
$rs = mysql_query($sql, $con); |
| 64 |
$num_rows = mysql_num_rows($rs); |
| 65 |
printf("Number of rows: %d<BR>\n", $num_rows); |
| 66 |
|
| 67 |
// Smallest order (if rows present, should be 1) |
| 68 |
$sql = "SELECT MIN(element_order) as min_order FROM element WHERE page_id = " |
| 69 |
. $page_id; |
| 70 |
$rs = mysql_query($sql, $con); |
| 71 |
$row = mysql_fetch_array ($rs); |
| 72 |
$min_order = $row["min_order"]; |
| 73 |
printf("First order: %d<br>\n", $min_order); |
| 74 |
|
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// Largest order (should equal distinct rows and number of rows |
| 76 |
$sql = "SELECT MAX(element_order) as max_order FROM element WHERE page_id = " |
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. $page_id; |
| 78 |
$rs = mysql_query($sql, $con); |
| 79 |
$row = mysql_fetch_array ($rs); |
| 80 |
$max_order = $row["max_order"]; |
| 81 |
printf("Last order: %d<br><br>\n", $max_order); |
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|
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/************************************ |
| 84 |
** Child-to-Parent reference check ** |
| 85 |
************************************/ |
| 86 |
|
| 87 |
printf("<b>Child-to-Parent reference check:</b><br>\n"); |
| 88 |
$c1_sql = "SELECT element_id, parent_id, element_order, indent_level FROM element WHERE page_id = " |
| 89 |
. $page_id |
| 90 |
. " AND parent_id > 0 ORDER BY element_order"; |
| 91 |
$c1_rs = mysql_query($c1_sql, $con); |
| 92 |
|
| 93 |
while ($c1_row = mysql_fetch_array ($c1_rs)) { |
| 94 |
$parent_id = $c1_row["parent_id"]; |
| 95 |
$indent_level = $c1_row["indent_level"]; |
| 96 |
$element_id = $c1_row["element_id"]; |
| 97 |
$element_order = $c1_row["element_order"]; |
| 98 |
|
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// For each row returned, hunt for the parent |
| 100 |
$c2_sql ="SELECT element_id, element_order, indent_level FROM element WHERE element_id = " |
| 101 |
. $parent_id; |
| 102 |
$c2_rs = mysql_query($c2_sql, $con); |
| 103 |
$c2_row = mysql_fetch_array ($c2_rs); |
| 104 |
$c2_indent_level = $c2_row["indent_level"]; |
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$c2_element_id = $c2_row["element_id"]; |
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$c2_element_order = $c2_row["element_order"]; |
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|
| 108 |
if (!($c2_element_id > 0)) { |
| 109 |
$passed = 0; |
| 110 |
printf("Failed. child element #%d tried to reference non-existent element #%d as parent.<br>\n", $element_id, $parent_id); |
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} |
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|
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if (!($c2_element_order < $element_order)) { |
| 114 |
$passed = 0; |
| 115 |
printf("Failed. child element #%d tried to reference later-occuring element #%d as parent.<br>\n", $element_id, $parent_id); |
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} |
| 117 |
|
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if (!($c2_indent_level == ($indent_level - 1))) { |
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$passed = 0; |
| 120 |
printf("Failed. child element #%d is not exactly one generation older than parent element #%d.<br>\n", $element_id, $parent_id); |
| 121 |
} |
| 122 |
|
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} |
| 124 |
if ($passed == 1) printf("Passed.<br>\n"); |
| 125 |
printf("<BR>\n"); |
| 126 |
|
| 127 |
/************************* |
| 128 |
** Order integrity test ** |
| 129 |
*************************/ |
| 130 |
|
| 131 |
printf("<b>Order integrity test:</b><br>\n"); |
| 132 |
printf("Order uniqueness check: "); |
| 133 |
if ($num_orders == $num_rows) printf("Passed"); |
| 134 |
else { |
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printf("Failed"); |
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$passed = 0; |
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} |
| 138 |
printf("<BR>\n"); |
| 139 |
|
| 140 |
printf("Order start at 1 check: "); |
| 141 |
if ($num_rows > 0) { |
| 142 |
if ($min_order == 1) printf("Passed"); |
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else { |
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printf("Failed"); |
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$passed = 0; |
| 146 |
} |
| 147 |
} |
| 148 |
else printf("(Empty page)"); |
| 149 |
printf("<br>\n"); |
| 150 |
|
| 151 |
printf("Order max %d check: ", $num_rows); |
| 152 |
if ($num_rows == $num_orders && $num_rows == $max_order) printf ("passed"); |
| 153 |
else { |
| 154 |
printf("Failed"); |
| 155 |
$passed = 0; |
| 156 |
} |
| 157 |
printf("<br><br>\n"); |
| 158 |
|
| 159 |
/*********************************************************************** |
| 160 |
* Compare given indent level with the calculated/traversed equivalent. * |
| 161 |
***********************************************************************/ |
| 162 |
|
| 163 |
printf("<b>Generation traversal tests:</b><br> "); |
| 164 |
$passed_gen = 1; |
| 165 |
$sql = "SELECT |
| 166 |
element_id, |
| 167 |
parent_id, |
| 168 |
indent_level |
| 169 |
FROM |
| 170 |
element |
| 171 |
WHERE page_id = " |
| 172 |
. $page_id |
| 173 |
. " ORDER BY element_order"; |
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|
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$rs = mysql_query($sql, $con); |
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|
| 177 |
while ($row = mysql_fetch_array ($rs)) { |
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$element_id = $row["element_id"]; |
| 179 |
$indent_level = $row["indent_level"]; |
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$parent_id = $row["parent_id"]; |
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$gen_level = 0; |
| 182 |
|
| 183 |
// Call the generational calculator for each element |
| 184 |
$gen_level = genCalc($con, $element_id, $gen_level, $page_id, $parent_id); |
| 185 |
|
| 186 |
if ($gen_level != $indent_level) { |
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printf("Failed. Element ID#%d reported generation of %d, but calculated at %d.<BR>\n", $element_id, $indent_level, $gen_level); |
| 188 |
$passed = 0; |
| 189 |
$passed_gen = 0; |
| 190 |
} |
| 191 |
|
| 192 |
// printf("Given indent was %s, gen calc. was %s<BR>", $indent_level, $gen_level); |
| 193 |
|
| 194 |
} |
| 195 |
if ($passed_gen == 1) printf("Passed.<br>\n"); |
| 196 |
else printf("Failed one or more generation calculations.<br>\n"); |
| 197 |
|
| 198 |
printf("<br>\n"); |
| 199 |
|
| 200 |
printf("<b>Final Summary:</b><br>"); |
| 201 |
if ($passed == 1) printf("This page appears to be bug-free."); |
| 202 |
else printf("This page failed one or more tests."); |
| 203 |
|
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// Close the table |
| 205 |
printf("<br><br></td></tr></table>\n"); |
| 206 |
|
| 207 |
printf("</center>\n"); |
| 208 |
|
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return $passed; |
| 210 |
|
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} |
| 212 |
|
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|
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/********************************************************** |
| 215 |
Function: genCalc |
| 216 |
Author: Paul Bramscher |
| 217 |
Last Modified: 10.27.2003 |
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*********************************************************** |
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Purpose: |
| 220 |
Recursively calculate the traversable generational level of |
| 221 |
the given element id. If this figure is not equal to its |
| 222 |
indent level, then there's an error. The fix algorithm |
| 223 |
will update the indent_level value in the elements table |
| 224 |
with the calculated value determined here. |
| 225 |
**********************************************************/ |
| 226 |
function genCalc($con, $element_id, $gen_level, $page_id, $parent_id) { |
| 227 |
|
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// If there is a parent to probe |
| 229 |
if ($parent_id > 0) { |
| 230 |
|
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// See if the parent actually exists |
| 232 |
$sql = "SELECT element_id, parent_id |
| 233 |
FROM element |
| 234 |
WHERE element_id = " |
| 235 |
. $parent_id |
| 236 |
. " AND page_id = " |
| 237 |
. $page_id; |
| 238 |
|
| 239 |
$rs = mysql_query($sql, $con); |
| 240 |
$row = mysql_fetch_array ($rs); |
| 241 |
$probe_parent_id = $row["parent_id"]; |
| 242 |
$probe_element_id = $row["parent_id"]; |
| 243 |
|
| 244 |
// See if the probed element has any parents to probe further |
| 245 |
if ($probe_element_id > 0) { |
| 246 |
return 1 + genCalc($con, $probe_element_id, $gen_level, $page_id, $probe_parent_id); |
| 247 |
|
| 248 |
} |
| 249 |
|
| 250 |
// No more parents |
| 251 |
return 1; |
| 252 |
|
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} |
| 254 |
|
| 255 |
return 0; |
| 256 |
|
| 257 |
} |
| 258 |
|
| 259 |
|
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/********************************************************** |
| 261 |
Function: isOrphan |
| 262 |
Author: Paul Bramscher |
| 263 |
Last Modified: 08.27.2003 |
| 264 |
*********************************************************** |
| 265 |
Purpose: |
| 266 |
Determines if the supplied PageScribe/CourseLib element is |
| 267 |
an orphaned type element. To be a valid child, a parent must |
| 268 |
(a) exist, (b) appear earlier in the order of elements |
| 269 |
1-N on a page, and (c) appear only once. If any criteria |
| 270 |
fails, the element is said to be orphaned, a bastard or |
| 271 |
otherwise of problematic ancestry. |
| 272 |
**********************************************************/ |
| 273 |
function isOrphan($con, $element_id, $element_order, $page_id, $parent_id) { |
| 274 |
|
| 275 |
//Initialize |
| 276 |
$orphan = 0; |
| 277 |
|
| 278 |
if ($parent_id > 0) { |
| 279 |
|
| 280 |
// First determine if the parent exists. |
| 281 |
$sql = "SELECT count(*) as par_found |
| 282 |
FROM element |
| 283 |
WHERE page_id = " |
| 284 |
. $page_id |
| 285 |
. " AND element_id = " |
| 286 |
. $parent_id |
| 287 |
. " AND element_order < " |
| 288 |
. $element_order; |
| 289 |
|
| 290 |
// testing |
| 291 |
// printf("orphan probe sql was: %s ", $sql); |
| 292 |
|
| 293 |
$rs = mysql_query($sql, $con); |
| 294 |
$row = mysql_fetch_array ($rs); |
| 295 |
$par_found = $row["par_found"]; |
| 296 |
|
| 297 |
// Should have only one match. If none (or multiple) set to 0. |
| 298 |
if ($par_found == 1) $orphan = 0; |
| 299 |
else $orphan = 1; |
| 300 |
|
| 301 |
// Output |
| 302 |
if ($orphan == 1) printf("Found orphan: ID#%d.<br>", $element_id); |
| 303 |
|
| 304 |
} |
| 305 |
|
| 306 |
return $orphan; |
| 307 |
} |
| 308 |
|
| 309 |
|
| 310 |
/********************************************************** |
| 311 |
Function: purgeOrphans |
| 312 |
Author: Paul Bramscher |
| 313 |
Last Modified: 10.28.2003 |
| 314 |
*********************************************************** |
| 315 |
Purpose: |
| 316 |
Purges and orphans found on the page. |
| 317 |
**********************************************************/ |
| 318 |
|
| 319 |
function purgeOrphans($con, $page_id) { |
| 320 |
|
| 321 |
printf("<b>Method #2 Delete fostered children and their descendants</b><br><br>\n"); |
| 322 |
printf("<b>Messages:</b><br>\n"); |
| 323 |
|
| 324 |
// Walk through all elements on the page |
| 325 |
$sql = "SELECT |
| 326 |
element_id, |
| 327 |
element_order, |
| 328 |
parent_id |
| 329 |
FROM element |
| 330 |
WHERE page_id = " |
| 331 |
. $page_id |
| 332 |
. " ORDER BY element_order"; |
| 333 |
|
| 334 |
$rs = mysql_query($sql, $con); |
| 335 |
|
| 336 |
while ($row = mysql_fetch_array ($rs)) { |
| 337 |
$element_id = $row["element_id"]; |
| 338 |
$element_order = $row["element_order"]; |
| 339 |
$parent_id = $row["parent_id"]; |
| 340 |
|
| 341 |
/* If an orphan, delete it and its first generation. |
| 342 |
Recall some Egyptian/Biblical curse here.*/ |
| 343 |
|
| 344 |
if ($parent_id > 0 && isOrphan($con, $element_id, $element_order, $page_id, $parent_id)) { |
| 345 |
|
| 346 |
$sub_sql = "DELETE FROM element |
| 347 |
WHERE page_id = " |
| 348 |
. $page_id |
| 349 |
. " AND element_id = " |
| 350 |
. $element_id |
| 351 |
. " AND parent_id = " |
| 352 |
. $parent_id; |
| 353 |
|
| 354 |
// printf("delete sql wasd: %s<BR>", $sql); |
| 355 |
|
| 356 |
if (!mysql_query ($sub_sql, $con)){ |
| 357 |
sql_err($sub_sql); |
| 358 |
mysql_query ("UNLOCK TABLES", $con); |
| 359 |
bailout(); |
| 360 |
} |
| 361 |
else { |
| 362 |
|
| 363 |
// Output |
| 364 |
printf("Element %d was an orphan. Deleted it.<br>\n", $element_id); |
| 365 |
|
| 366 |
mysql_query ("UNLOCK TABLES", $con); |
| 367 |
} // deleted this element |
| 368 |
|
| 369 |
} // delete all elements which are orphaned |
| 370 |
|
| 371 |
} // for all elements with parents specified, check if they are orphaned |
| 372 |
|
| 373 |
} // end purgeOrphans |
| 374 |
|
| 375 |
|
| 376 |
/********************************************************** |
| 377 |
Function: purgeRelationships |
| 378 |
Author: Paul Bramscher |
| 379 |
Last Modified: 10.28.2003 |
| 380 |
*********************************************************** |
| 381 |
Purpose: |
| 382 |
Purges all parent-child relationships on the page, and |
| 383 |
reduces all elements to root-level elements. Highly |
| 384 |
destructive, but virtually guaranteed to fix a page. |
| 385 |
**********************************************************/ |
| 386 |
|
| 387 |
function purgeRelationships($con, $page_id) { |
| 388 |
|
| 389 |
printf("<b>Method #3 Purge all parent-child relationships!</b><br><br>\n"); |
| 390 |
printf("<b>Messages:</b><br>\n"); |
| 391 |
|
| 392 |
$sql = "UPDATE element |
| 393 |
SET parent_id = 0, indent_level = 0 |
| 394 |
WHERE page_id = " |
| 395 |
. $page_id; |
| 396 |
|
| 397 |
if (!mysql_query ($sql, $con)){ |
| 398 |
sql_err($sql); |
| 399 |
mysql_query ("UNLOCK TABLES", $con); |
| 400 |
bailout(); |
| 401 |
} |
| 402 |
else { |
| 403 |
|
| 404 |
printf("Purged all!<br>\n"); |
| 405 |
mysql_query ("UNLOCK TABLES", $con); |
| 406 |
} // purged all! |
| 407 |
|
| 408 |
|
| 409 |
} // end purgeRelationships |
| 410 |
|
| 411 |
|
| 412 |
/********************************************************** |
| 413 |
Function: scribeFix |
| 414 |
Author: Paul Bramscher |
| 415 |
Last Modified: 10.28.2003 |
| 416 |
*********************************************************** |
| 417 |
Purpose: |
| 418 |
Fixes a broken PageScribe/CourseLib page based on best |
| 419 |
guess. Methods: |
| 420 |
(1) Attach foster children (and their descendants) |
| 421 |
to most likely parent: first previous parent. |
| 422 |
(2) Delete foster children (and their descendants). |
| 423 |
(3) Delete all parent-child relationships, and convert all |
| 424 |
elements to root-level (guaranteed fix). |
| 425 |
|
| 426 |
Required steps, automatically followed after any method: |
| 427 |
(a) First element is 1, Nth element must be N |
| 428 |
(b) Fill in any "holes" in the element order. |
| 429 |
(c) Clean up all indent levels. |
| 430 |
**********************************************************/ |
| 431 |
function scribeFix($con, $method, $page_id){ |
| 432 |
|
| 433 |
printf("<center>\n"); |
| 434 |
printf("<table width=\"90%%\" class=\"backLight\" border=\"1\">\n"); |
| 435 |
printf("<tr><td class=\"cellPlain\">Page Fix Dialog (#%d)</td></tr>\n", $page_id); |
| 436 |
printf("<tr><td><br>\n"); |
| 437 |
|
| 438 |
switch ($method) { |
| 439 |
|
| 440 |
// Update orphans |
| 441 |
case 1: updateOrphans($con, $page_id); |
| 442 |
break; |
| 443 |
|
| 444 |
// Purge orphans |
| 445 |
case 2: purgeOrphans($con, $page_id); |
| 446 |
break; |
| 447 |
|
| 448 |
// Purge all parent-child relationships |
| 449 |
case 3: purgeRelationships($con, $page_id); |
| 450 |
break; |
| 451 |
|
| 452 |
default: |
| 453 |
break; |
| 454 |
|
| 455 |
} |
| 456 |
|
| 457 |
// Required cleanup, regardless of fix methodology |
| 458 |
updateOrders($con, $page_id); |
| 459 |
updateGenerations($con, $page_id); |
| 460 |
|
| 461 |
printf("<br>Done. Re-run the debugger against this page to determine success: <a href=\"scribe_debug.phtml?page_id=%d\">Debug Page ID#%d</a><br><br>", $page_id, $page_id); |
| 462 |
printf("</td></tr></table></center>\n"); |
| 463 |
|
| 464 |
|
| 465 |
} // end scribeFix |
| 466 |
|
| 467 |
|
| 468 |
/********************************************************** |
| 469 |
Function: updateGenerations |
| 470 |
Author: Paul Bramscher |
| 471 |
Last Modified: 10.28.2003 |
| 472 |
*********************************************************** |
| 473 |
Purpose: |
| 474 |
Walks through a page and compares calculated generation with |
| 475 |
reported indent level. When a discrepancy is found, fix it |
| 476 |
according to the calculated generation. |
| 477 |
**********************************************************/ |
| 478 |
function updateGenerations($con, $page_id) { |
| 479 |
|
| 480 |
printf("<br><b>Analyzing generational structure:</b><br>\n"); |
| 481 |
|
| 482 |
// Initialize |
| 483 |
$passed_gen = 1; |
| 484 |
$element_count = 0; |
| 485 |
|
| 486 |
// Load all elements on the page |
| 487 |
$sql = "SELECT |
| 488 |
element_id, |
| 489 |
parent_id, |
| 490 |
indent_level |
| 491 |
FROM |
| 492 |
element |
| 493 |
WHERE page_id = " |
| 494 |
. $page_id |
| 495 |
. " ORDER BY element_order"; |
| 496 |
|
| 497 |
$rs = mysql_query($sql, $con); |
| 498 |
|
| 499 |
while ($row = mysql_fetch_array ($rs)) { |
| 500 |
$element_id = $row["element_id"]; |
| 501 |
$indent_level = $row["indent_level"]; |
| 502 |
$parent_id = $row["parent_id"]; |
| 503 |
|
| 504 |
// Initialize |
| 505 |
$gen_level = 0; |
| 506 |
|
| 507 |
// Call the generational calculator for each element |
| 508 |
$gen_level = genCalc($con, $element_id, $gen_level, $page_id, $parent_id); |
| 509 |
|
| 510 |
// A discrepancy was founnd |
| 511 |
if ($gen_level != $indent_level) { |
| 512 |
|
| 513 |
// MArk as failed |
| 514 |
$passed_gen = 0; |
| 515 |
|
| 516 |
// Reset the indent levels |
| 517 |
$sub_sql = "UPDATE element |
| 518 |
SET indent_level = " |
| 519 |
. $gen_level |
| 520 |
. " WHERE page_id = " |
| 521 |
. $page_id |
| 522 |
. " AND element_id = " |
| 523 |
. $element_id; |
| 524 |
|
| 525 |
if (!mysql_query ($sub_sql, $con)){ |
| 526 |
sql_err($sub_sql); |
| 527 |
mysql_query ("UNLOCK TABLES", $con); |
| 528 |
bailout(); |
| 529 |
} |
| 530 |
else { |
| 531 |
// Output |
| 532 |
printf("Element #%d reported generation of %d, but calculated at %d. Fixed.<br>\n", $element_id, $indent_level, $gen_level); |
| 533 |
mysql_query ("UNLOCK TABLES", $con); |
| 534 |
|
| 535 |
} // fixed this element's indent |
| 536 |
|
| 537 |
} // if there is a discrepancy with calculated generation level |
| 538 |
|
| 539 |
} // for all elements, calculate and fix (if needed) their indents |
| 540 |
|
| 541 |
if ($passed_gen == 1) printf("No generational errors found.<br>\n"); |
| 542 |
|
| 543 |
} // end updateGenerations |
| 544 |
|
| 545 |
|
| 546 |
/********************************************************** |
| 547 |
Function: updateOrders |
| 548 |
Author: Paul Bramscher |
| 549 |
Last Modified: 10.28.2003 |
| 550 |
*********************************************************** |
| 551 |
Purpose: |
| 552 |
Walks through a page and compares calculated order with |
| 553 |
reported order. When a discrepancy is found, fix it |
| 554 |
according to the calculated order. |
| 555 |
**********************************************************/ |
| 556 |
function updateOrders($con, $page_id) { |
| 557 |
|
| 558 |
printf("<br><b>Analyzing cardinal orders:</b><br>\n"); |
| 559 |
|
| 560 |
// Initialize |
| 561 |
$passed_card = 1; |
| 562 |
$element_count = 0; |
| 563 |
|
| 564 |
// Cycle through all elements on the page |
| 565 |
$sql = "SELECT |
| 566 |
element_id, |
| 567 |
element_order |
| 568 |
FROM |
| 569 |
element |
| 570 |
WHERE page_id = " |
| 571 |
. $page_id |
| 572 |
. " ORDER BY element_order"; |
| 573 |
|
| 574 |
$rs = mysql_query($sql, $con); |
| 575 |
|
| 576 |
while ($row = mysql_fetch_array ($rs)) { |
| 577 |
$element_id = $row["element_id"]; |
| 578 |
$element_order = $row["element_order"]; |
| 579 |
|
| 580 |
// Increment row counter |
| 581 |
$element_count++; |
| 582 |
|
| 583 |
// If there's an order problem, do this |
| 584 |
if ($element_count != $element_order) { |
| 585 |
|
| 586 |
// Mark as failed |
| 587 |
$passed_card = 0; |
| 588 |
|
| 589 |
// Reset the order |
| 590 |
$sub_sql = "UPDATE element |
| 591 |
SET element_order = " |
| 592 |
. $element_count |
| 593 |
. " WHERE page_id = " |
| 594 |
. $page_id |
| 595 |
. " AND element_id = " |
| 596 |
. $element_id; |
| 597 |
|
| 598 |
if (!mysql_query ($sub_sql, $con)){ |
| 599 |
sql_err($sub_sql); |
| 600 |
mysql_query ("UNLOCK TABLES", $con); |
| 601 |
bailout(); |
| 602 |
} |
| 603 |
else { |
| 604 |
|
| 605 |
// Output |
| 606 |
printf("Row #%d reported cardinal order of %d, but calculated at %d. Fixed.<br>\n", $element_count, $element_order, $element_count); |
| 607 |
mysql_query ("UNLOCK TABLES", $con); |
| 608 |
} // fixed this element's order |
| 609 |
|
| 610 |
} // if an order discrepancy was found |
| 611 |
|
| 612 |
} // for all elements, check their orders and fix (if needed) |
| 613 |
|
| 614 |
// If no problems found |
| 615 |
if ($passed_card == 1) printf("No cardinal order errors found.<br>\n"); |
| 616 |
|
| 617 |
} // end updateOrders |
| 618 |
|
| 619 |
|
| 620 |
/********************************************************** |
| 621 |
Function: updateOrphans |
| 622 |
Author: Paul Bramscher |
| 623 |
Last Modified: 10.28.2003 |
| 624 |
*********************************************************** |
| 625 |
Purpose: |
| 626 |
Walks through a page and hunts for orphaned/bastard |
| 627 |
children. Hunts for most likely parent and attaches the |
| 628 |
child to it. |
| 629 |
**********************************************************/ |
| 630 |
function updateOrphans($con, $page_id) { |
| 631 |
|
| 632 |
// Initialize |
| 633 |
$passed_orphan = 1; |
| 634 |
|
| 635 |
printf("<b>Method #1 Attach orphans to a foster parent</b><br><br>\n"); |
| 636 |
printf("<b>Messages:</b><br>\n"); |
| 637 |
|
| 638 |
$sql = "SELECT |
| 639 |
element_id, |
| 640 |
element_order, |
| 641 |
parent_id, |
| 642 |
indent_level |
| 643 |
FROM element |
| 644 |
WHERE page_id = " |
| 645 |
. $page_id |
| 646 |
. " ORDER BY element_order"; |
| 647 |
|
| 648 |
$rs = mysql_query($sql, $con); |
| 649 |
|
| 650 |
while ($row = mysql_fetch_array ($rs)) { |
| 651 |
$element_id = $row["element_id"]; |
| 652 |
$element_order = $row["element_order"]; |
| 653 |
$parent_id = $row["parent_id"]; |
| 654 |
$indent_level = $row["indent_level"]; |
| 655 |
|
| 656 |
$new_parent_id = parentProbe($con, $page_id, $element_order, $indent_level); |
| 657 |
$orphaned = 0; |
| 658 |
$orphaned = isOrphan($con, $element_id, $element_order, $page_id, $parent_id); |
| 659 |
|
| 660 |
// Hunt for most likely parent, and assign to it instead. |
| 661 |
if ($parent_id > 0 && $orphaned == 1) { |
| 662 |
|
| 663 |
// Mark as failed |
| 664 |
$passed_orphan = 0; |
| 665 |
|
| 666 |
$sub_sql = "UPDATE element |
| 667 |
SET parent_id = " |
| 668 |
. $new_parent_id |
| 669 |
. " WHERE page_id = " |
| 670 |
. $page_id |
| 671 |
. " AND element_id = " |
| 672 |
. $element_id; |
| 673 |
|
| 674 |
if (!mysql_query ($sub_sql, $con)){ |
| 675 |
sql_err($sub_sql); |
| 676 |
mysql_query ("UNLOCK TABLES", $con); |
| 677 |
bailout(); |
| 678 |
} |
| 679 |
else { |
| 680 |
|
| 681 |
// Output |
| 682 |
printf("Element #%d orphaned. Reassigned to parent #%d<br>\n", $element_id, $new_parent_id); |
| 683 |
|
| 684 |
mysql_query ("UNLOCK TABLES", $con); |
| 685 |
} // reassigned this element |
| 686 |
|
| 687 |
} // reassign problematic elements |
| 688 |
|
| 689 |
} // for all elements with a problematic ancestry, find a most likely parent |
| 690 |
|
| 691 |
if ($passed_orphan == 1) printf("No orphans found.<br>\n"); |
| 692 |
|
| 693 |
} // end updateOrphans |
| 694 |
?> |
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