| 1 |
<?php |
| 2 |
/********************************************************** |
| 3 |
Function Library: scribe_fix.php |
| 4 |
Original Author: Paul Bramscher <brams006@umn.edu> |
| 5 |
Last Modified: 03.16.2004 |
| 6 |
*********************************************************** |
| 7 |
Comments: |
| 8 |
This library brings together CourseLib/PageScribe page |
| 9 |
debugging and fixing algorithms. |
| 10 |
*********************************************************** |
| 11 |
Table of Contents: |
| 12 |
errorTrap |
| 13 |
genCalc |
| 14 |
isOrphan |
| 15 |
purgeOrphans |
| 16 |
purgeRelationships |
| 17 |
scribeFix |
| 18 |
updateGenerations |
| 19 |
updateOrders |
| 20 |
updateOrphans |
| 21 |
**********************************************************/ |
| 22 |
|
| 23 |
/********************************************************** |
| 24 |
Function: errorTrap |
| 25 |
Author: Paul Bramscher |
| 26 |
Last Modified: 03.04.2004 |
| 27 |
*********************************************************** |
| 28 |
Purpose: |
| 29 |
Debugger available for CLPS system, to check for various |
| 30 |
sorts of page integrity. If page_debug in the page table |
| 31 |
is equal to 1, then this function is useful to call from |
| 32 |
scribe.phtml automatically. Otherwise, it's called |
| 33 |
manually from the DBA console. |
| 34 |
**********************************************************/ |
| 35 |
function errorTrap($page_id){ |
| 36 |
|
| 37 |
// Fetch title |
| 38 |
$page_title = lookupField("page", "page_id", $page_id, "page_title"); |
| 39 |
|
| 40 |
// Overall status |
| 41 |
$passed = 1; |
| 42 |
|
| 43 |
printf("<center>\n"); |
| 44 |
printf("<table width=\"90%%\" class=\"backLight\" border=\"1\">\n"); |
| 45 |
printf("<tr><td class=\"cellPlain\">Debug Data: %s (ID# %d)</td></tr>\n", $page_title, $page_id); |
| 46 |
printf("<tr><td><br>\n"); |
| 47 |
|
| 48 |
/*********************** |
| 49 |
** Basic Element Data ** |
| 50 |
***********************/ |
| 51 |
|
| 52 |
printf("<b>Element Data:</b><br>\n"); |
| 53 |
|
| 54 |
// Distinct orders |
| 55 |
$sql = "SELECT DISTINCT element_order FROM element WHERE page_id =" |
| 56 |
. $page_id; |
| 57 |
$rs = xx_tryquery($sql); |
| 58 |
$num_orders = xx_num_rows($rs); |
| 59 |
printf("Unique orders: %d<br>\n", $num_orders); |
| 60 |
|
| 61 |
// Number of rows (should be the same) |
| 62 |
$sql = "SELECT element_id FROM element WHERE page_id = " |
| 63 |
. $page_id; |
| 64 |
$rs = xx_tryquery($sql); |
| 65 |
$num_rows = xx_num_rows($rs); |
| 66 |
printf("Number of rows: %d<BR>\n", $num_rows); |
| 67 |
|
| 68 |
// Smallest order (if rows present, should be 1) |
| 69 |
$sql = "SELECT MIN(element_order) as min_order FROM element WHERE page_id = " |
| 70 |
. $page_id; |
| 71 |
$rs = xx_tryquery($sql); |
| 72 |
$row = xx_fetch_array ($rs, xx_ASSOC); |
| 73 |
$min_order = $row["min_order"]; |
| 74 |
printf("First order: %d<br>\n", $min_order); |
| 75 |
|
| 76 |
// Largest order (should equal distinct rows and number of rows |
| 77 |
$sql = "SELECT MAX(element_order) as max_order FROM element WHERE page_id = " |
| 78 |
. $page_id; |
| 79 |
$rs = xx_tryquery($sql); |
| 80 |
$row = xx_fetch_array ($rs, xx_ASSOC); |
| 81 |
$max_order = $row["max_order"]; |
| 82 |
printf("Last order: %d<br><br>\n", $max_order); |
| 83 |
|
| 84 |
/************************************ |
| 85 |
** Child-to-Parent reference check ** |
| 86 |
************************************/ |
| 87 |
|
| 88 |
printf("<b>Child-to-Parent reference check:</b><br>\n"); |
| 89 |
$c1_sql = "SELECT element_id, parent_id, element_order, indent_level FROM element WHERE page_id = " |
| 90 |
. $page_id |
| 91 |
. " AND parent_id > 0 ORDER BY element_order"; |
| 92 |
$c1_rs = xx_tryquery($c1_sql); |
| 93 |
|
| 94 |
while ($c1_row = xx_fetch_array ($c1_rs, xx_ASSOC)) { |
| 95 |
$parent_id = $c1_row["parent_id"]; |
| 96 |
$indent_level = $c1_row["indent_level"]; |
| 97 |
$element_id = $c1_row["element_id"]; |
| 98 |
$element_order = $c1_row["element_order"]; |
| 99 |
|
| 100 |
// For each row returned, hunt for the parent |
| 101 |
$c2_sql ="SELECT element_id, element_order, indent_level FROM element WHERE element_id = " |
| 102 |
. $parent_id; |
| 103 |
$c2_rs = xx_tryquery($c2_sql); |
| 104 |
$c2_row = xx_fetch_array ($c2_rs, xx_ASSOC); |
| 105 |
$c2_indent_level = $c2_row["indent_level"]; |
| 106 |
$c2_element_id = $c2_row["element_id"]; |
| 107 |
$c2_element_order = $c2_row["element_order"]; |
| 108 |
|
| 109 |
if (!($c2_element_id > 0)) { |
| 110 |
$passed = 0; |
| 111 |
printf("Failed. child element #%d tried to reference non-existent element #%d as parent.<br>\n", $element_id, $parent_id); |
| 112 |
} |
| 113 |
|
| 114 |
if (!($c2_element_order < $element_order)) { |
| 115 |
$passed = 0; |
| 116 |
printf("Failed. child element #%d tried to reference later-occuring element #%d as parent.<br>\n", $element_id, $parent_id); |
| 117 |
} |
| 118 |
|
| 119 |
if (!($c2_indent_level == ($indent_level - 1))) { |
| 120 |
$passed = 0; |
| 121 |
printf("Failed. child element #%d is not exactly one generation older than parent element #%d.<br>\n", $element_id, $parent_id); |
| 122 |
} |
| 123 |
|
| 124 |
} |
| 125 |
if ($passed == 1) printf("Passed.<br>\n"); |
| 126 |
printf("<BR>\n"); |
| 127 |
|
| 128 |
/************************* |
| 129 |
** Order integrity test ** |
| 130 |
*************************/ |
| 131 |
|
| 132 |
printf("<b>Order integrity test:</b><br>\n"); |
| 133 |
printf("Order uniqueness check: "); |
| 134 |
if ($num_orders == $num_rows) printf("Passed"); |
| 135 |
else { |
| 136 |
printf("Failed"); |
| 137 |
$passed = 0; |
| 138 |
} |
| 139 |
printf("<BR>\n"); |
| 140 |
|
| 141 |
printf("Order start at 1 check: "); |
| 142 |
if ($num_rows > 0) { |
| 143 |
if ($min_order == 1) printf("Passed"); |
| 144 |
else { |
| 145 |
printf("Failed"); |
| 146 |
$passed = 0; |
| 147 |
} |
| 148 |
} |
| 149 |
else printf("(Empty page)"); |
| 150 |
printf("<br>\n"); |
| 151 |
|
| 152 |
printf("Order max %d check: ", $num_rows); |
| 153 |
if ($num_rows == $num_orders && $num_rows == $max_order) printf ("passed"); |
| 154 |
else { |
| 155 |
printf("Failed"); |
| 156 |
$passed = 0; |
| 157 |
} |
| 158 |
printf("<br><br>\n"); |
| 159 |
|
| 160 |
/*********************************************************************** |
| 161 |
* Compare given indent level with the calculated/traversed equivalent. * |
| 162 |
***********************************************************************/ |
| 163 |
|
| 164 |
printf("<b>Generation traversal tests:</b><br> "); |
| 165 |
$passed_gen = 1; |
| 166 |
$sql = "SELECT |
| 167 |
element_id, |
| 168 |
parent_id, |
| 169 |
indent_level |
| 170 |
FROM |
| 171 |
element |
| 172 |
WHERE page_id = " |
| 173 |
. $page_id |
| 174 |
. " ORDER BY element_order"; |
| 175 |
|
| 176 |
$rs = xx_tryquery($sql); |
| 177 |
|
| 178 |
while ($row = xx_fetch_array ($rs, xx_ASSOC)) { |
| 179 |
$element_id = $row["element_id"]; |
| 180 |
$indent_level = $row["indent_level"]; |
| 181 |
$parent_id = $row["parent_id"]; |
| 182 |
$gen_level = 0; |
| 183 |
|
| 184 |
// Call the generational calculator for each element |
| 185 |
$gen_level = genCalc($element_id, $gen_level, $page_id, $parent_id); |
| 186 |
|
| 187 |
if ($gen_level != $indent_level) { |
| 188 |
printf("Failed. Element ID#%d reported generation of %d, but calculated at %d.<BR>\n", $element_id, $indent_level, $gen_level); |
| 189 |
$passed = 0; |
| 190 |
$passed_gen = 0; |
| 191 |
} |
| 192 |
|
| 193 |
// printf("Given indent was %s, gen calc. was %s<BR>", $indent_level, $gen_level); |
| 194 |
|
| 195 |
} |
| 196 |
if ($passed_gen == 1) printf("Passed.<br>\n"); |
| 197 |
else printf("Failed one or more generation calculations.<br>\n"); |
| 198 |
|
| 199 |
printf("<br>\n"); |
| 200 |
|
| 201 |
printf("<b>Final Summary:</b><br>"); |
| 202 |
if ($passed == 1) printf("This page appears to be bug-free."); |
| 203 |
else printf("This page failed one or more tests."); |
| 204 |
|
| 205 |
// Close the table |
| 206 |
printf("<br><br></td></tr></table>\n"); |
| 207 |
|
| 208 |
printf("</center>\n"); |
| 209 |
|
| 210 |
return $passed; |
| 211 |
|
| 212 |
} |
| 213 |
|
| 214 |
|
| 215 |
/********************************************************** |
| 216 |
Function: genCalc |
| 217 |
Author: Paul Bramscher |
| 218 |
Last Modified: 03.04.2004 |
| 219 |
*********************************************************** |
| 220 |
Purpose: |
| 221 |
Recursively calculate the traversable generational level of |
| 222 |
the given element id. If this figure is not equal to its |
| 223 |
indent level, then there's an error. The fix algorithm |
| 224 |
will update the indent_level value in the elements table |
| 225 |
with the calculated value determined here. |
| 226 |
**********************************************************/ |
| 227 |
function genCalc($element_id, $gen_level, $page_id, $parent_id) { |
| 228 |
|
| 229 |
// If there is a parent to probe |
| 230 |
if ($parent_id > 0) { |
| 231 |
|
| 232 |
// See if the parent actually exists |
| 233 |
$sql = "SELECT element_id, parent_id |
| 234 |
FROM element |
| 235 |
WHERE element_id = " |
| 236 |
. $parent_id |
| 237 |
. " AND page_id = " |
| 238 |
. $page_id; |
| 239 |
|
| 240 |
$rs = xx_tryquery($sql); |
| 241 |
$row = xx_fetch_array ($rs, xx_ASSOC); |
| 242 |
$probe_parent_id = $row["parent_id"]; |
| 243 |
$probe_element_id = $row["parent_id"]; |
| 244 |
|
| 245 |
// See if the probed element has any parents to probe further |
| 246 |
if ($probe_element_id > 0) { |
| 247 |
return 1 + genCalc($probe_element_id, $gen_level, $page_id, $probe_parent_id); |
| 248 |
|
| 249 |
} |
| 250 |
|
| 251 |
// No more parents |
| 252 |
return 1; |
| 253 |
|
| 254 |
} |
| 255 |
|
| 256 |
return 0; |
| 257 |
|
| 258 |
} |
| 259 |
|
| 260 |
|
| 261 |
/********************************************************** |
| 262 |
Function: isOrphan |
| 263 |
Author: Paul Bramscher |
| 264 |
Last Modified: 03.04.2004 |
| 265 |
*********************************************************** |
| 266 |
Purpose: |
| 267 |
Determines if the supplied PageScribe/CourseLib element is |
| 268 |
an orphaned type element. To be a valid child, a parent must |
| 269 |
(a) exist, (b) appear earlier in the order of elements |
| 270 |
1-N on a page, and (c) appear only once. If any criteria |
| 271 |
fails, the element is said to be orphaned, a bastard or |
| 272 |
otherwise of problematic ancestry. |
| 273 |
**********************************************************/ |
| 274 |
function isOrphan($element_id, $element_order, $page_id, $parent_id) { |
| 275 |
|
| 276 |
//Initialize |
| 277 |
$orphan = 0; |
| 278 |
|
| 279 |
if ($parent_id > 0) { |
| 280 |
|
| 281 |
// First determine if the parent exists. |
| 282 |
$sql = "SELECT count(*) as par_found |
| 283 |
FROM element |
| 284 |
WHERE page_id = " |
| 285 |
. $page_id |
| 286 |
. " AND element_id = " |
| 287 |
. $parent_id |
| 288 |
. " AND element_order < " |
| 289 |
. $element_order; |
| 290 |
|
| 291 |
// testing |
| 292 |
// printf("orphan probe sql was: %s ", $sql); |
| 293 |
|
| 294 |
$rs = xx_tryquery($sql); |
| 295 |
$row = xx_fetch_array ($rs, xx_ASSOC); |
| 296 |
$par_found = $row["par_found"]; |
| 297 |
|
| 298 |
// Should have only one match. If none (or multiple) set to 0. |
| 299 |
if ($par_found == 1) $orphan = 0; |
| 300 |
else $orphan = 1; |
| 301 |
|
| 302 |
// Output |
| 303 |
if ($orphan == 1) printf("Found orphan: ID#%d.<br>\n", $element_id); |
| 304 |
|
| 305 |
} |
| 306 |
|
| 307 |
return $orphan; |
| 308 |
} |
| 309 |
|
| 310 |
|
| 311 |
/********************************************************** |
| 312 |
Function: purgeOrphans |
| 313 |
Author: Paul Bramscher |
| 314 |
Last Modified: 03.04.2004 |
| 315 |
*********************************************************** |
| 316 |
Purpose: |
| 317 |
Purges and orphans found on the page. |
| 318 |
**********************************************************/ |
| 319 |
function purgeOrphans($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 |
$rs = xx_tryquery($sql); |
| 335 |
|
| 336 |
while ($row = xx_fetch_array ($rs, xx_ASSOC)) { |
| 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($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 |
. $parent_id; |
| 353 |
if (xx_tryquery ($sub_sql)) printf("Element %d was an orphan. Deleted it.<br>\n", $element_id); |
| 354 |
|
| 355 |
} // delete all elements which are orphaned |
| 356 |
|
| 357 |
} // for all elements with parents specified, check if they are orphaned |
| 358 |
|
| 359 |
} // end purgeOrphans |
| 360 |
|
| 361 |
|
| 362 |
/********************************************************** |
| 363 |
Function: purgeRelationships |
| 364 |
Author: Paul Bramscher |
| 365 |
Last Modified: 03.04.2004 |
| 366 |
*********************************************************** |
| 367 |
Purpose: |
| 368 |
Purges all parent-child relationships on the page, and |
| 369 |
reduces all elements to root-level elements. Highly |
| 370 |
destructive, but virtually guaranteed to fix a page. |
| 371 |
**********************************************************/ |
| 372 |
|
| 373 |
function purgeRelationships($page_id) { |
| 374 |
|
| 375 |
printf("<b>Method #3 Purge all parent-child relationships!</b><br><br>\n"); |
| 376 |
printf("<b>Messages:</b><br>\n"); |
| 377 |
|
| 378 |
$sql = "UPDATE element |
| 379 |
SET parent_id = 0, indent_level = 0 |
| 380 |
WHERE page_id = " |
| 381 |
. $page_id; |
| 382 |
if (xx_tryquery ($sql)) printf("Purged all!<br>\n"); |
| 383 |
|
| 384 |
} // end purgeRelationships |
| 385 |
|
| 386 |
|
| 387 |
/********************************************************** |
| 388 |
Function: scribeFix |
| 389 |
Author: Paul Bramscher |
| 390 |
Last Modified: 10.28.2003 |
| 391 |
*********************************************************** |
| 392 |
Purpose: |
| 393 |
Fixes a broken PageScribe/CourseLib page based on best |
| 394 |
guess. Methods: |
| 395 |
(1) Attach foster children (and their descendants) |
| 396 |
to most likely parent: first previous parent. |
| 397 |
(2) Delete foster children (and their descendants). |
| 398 |
(3) Delete all parent-child relationships, and convert all |
| 399 |
elements to root-level (guaranteed fix). |
| 400 |
|
| 401 |
Required steps, automatically followed after any method: |
| 402 |
(a) First element is 1, Nth element must be N |
| 403 |
(b) Fill in any "holes" in the element order. |
| 404 |
(c) Clean up all indent levels. |
| 405 |
**********************************************************/ |
| 406 |
function scribeFix($method, $page_id){ |
| 407 |
|
| 408 |
printf("<center>\n"); |
| 409 |
printf("<table width=\"90%%\" class=\"backLight\" border=\"1\">\n"); |
| 410 |
printf("<tr><td class=\"cellPlain\">Page Fix Dialog (ID# %d)</td></tr>\n", $page_id); |
| 411 |
printf("<tr><td><br>\n"); |
| 412 |
|
| 413 |
switch ($method) { |
| 414 |
|
| 415 |
// Update orphans |
| 416 |
case 1: updateOrphans($page_id); |
| 417 |
break; |
| 418 |
|
| 419 |
// Purge orphans |
| 420 |
case 2: purgeOrphans($page_id); |
| 421 |
break; |
| 422 |
|
| 423 |
// Purge all parent-child relationships |
| 424 |
case 3: purgeRelationships($page_id); |
| 425 |
break; |
| 426 |
|
| 427 |
default: |
| 428 |
break; |
| 429 |
|
| 430 |
} |
| 431 |
|
| 432 |
// Required cleanup, regardless of fix methodology |
| 433 |
updateOrders($page_id); |
| 434 |
updateGenerations($page_id); |
| 435 |
|
| 436 |
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, $page_id); |
| 437 |
printf("</td></tr></table></center>\n"); |
| 438 |
|
| 439 |
|
| 440 |
} // end scribeFix |
| 441 |
|
| 442 |
|
| 443 |
/********************************************************** |
| 444 |
Function: updateGenerations |
| 445 |
Author: Paul Bramscher |
| 446 |
Last Modified: 03.04.2004 |
| 447 |
*********************************************************** |
| 448 |
Purpose: |
| 449 |
Walks through a page and compares calculated generation with |
| 450 |
reported indent level. When a discrepancy is found, fix it |
| 451 |
according to the calculated generation. |
| 452 |
**********************************************************/ |
| 453 |
function updateGenerations($page_id) { |
| 454 |
|
| 455 |
printf("<br><b>Analyzing generational structure:</b><br>\n"); |
| 456 |
|
| 457 |
// Initialize |
| 458 |
$passed_gen = 1; |
| 459 |
$element_count = 0; |
| 460 |
|
| 461 |
// Load all elements on the page |
| 462 |
$sql = "SELECT |
| 463 |
element_id, |
| 464 |
parent_id, |
| 465 |
indent_level |
| 466 |
FROM |
| 467 |
element |
| 468 |
WHERE page_id = " |
| 469 |
. $page_id |
| 470 |
. " ORDER BY element_order"; |
| 471 |
|
| 472 |
$rs = xx_tryquery($sql); |
| 473 |
|
| 474 |
while ($row = xx_fetch_array ($rs, xx_ASSOC)) { |
| 475 |
$element_id = $row["element_id"]; |
| 476 |
$indent_level = $row["indent_level"]; |
| 477 |
$parent_id = $row["parent_id"]; |
| 478 |
|
| 479 |
// Initialize |
| 480 |
$gen_level = 0; |
| 481 |
|
| 482 |
// Call the generational calculator for each element |
| 483 |
$gen_level = genCalc($element_id, $gen_level, $page_id, $parent_id); |
| 484 |
|
| 485 |
// A discrepancy was founnd |
| 486 |
if ($gen_level != $indent_level) { |
| 487 |
|
| 488 |
// MArk as failed |
| 489 |
$passed_gen = 0; |
| 490 |
|
| 491 |
// Reset the indent levels |
| 492 |
$sub_sql = "UPDATE element |
| 493 |
SET indent_level = " |
| 494 |
. $gen_level |
| 495 |
. " WHERE page_id = " |
| 496 |
. $page_id |
| 497 |
. " AND element_id = " |
| 498 |
. $element_id; |
| 499 |
if (xx_tryquery ($sub_sql)) printf("Element #%d reported generation of %d, but calculated at %d. Fixed.<br>\n", $element_id, $indent_level, $gen_level); |
| 500 |
|
| 501 |
} // if there is a discrepancy with calculated generation level |
| 502 |
|
| 503 |
} // for all elements, calculate and fix (if needed) their indents |
| 504 |
|
| 505 |
if ($passed_gen == 1) printf("No generational errors found.<br>\n"); |
| 506 |
|
| 507 |
} // end updateGenerations |
| 508 |
|
| 509 |
|
| 510 |
/********************************************************** |
| 511 |
Function: updateOrders |
| 512 |
Author: Paul Bramscher |
| 513 |
Last Modified: 03.04.2004 |
| 514 |
*********************************************************** |
| 515 |
Purpose: |
| 516 |
Walks through a page and compares calculated order with |
| 517 |
reported order. When a discrepancy is found, fix it |
| 518 |
according to the calculated order. |
| 519 |
**********************************************************/ |
| 520 |
function updateOrders($page_id) { |
| 521 |
|
| 522 |
printf("<br><b>Analyzing cardinal orders:</b><br>\n"); |
| 523 |
|
| 524 |
// Initialize |
| 525 |
$passed_card = 1; |
| 526 |
$element_count = 0; |
| 527 |
|
| 528 |
// Cycle through all elements on the page |
| 529 |
$sql = "SELECT |
| 530 |
element_id, |
| 531 |
element_order |
| 532 |
FROM |
| 533 |
element |
| 534 |
WHERE page_id = " |
| 535 |
. $page_id |
| 536 |
. " ORDER BY element_order"; |
| 537 |
|
| 538 |
$rs = xx_tryquery($sql); |
| 539 |
|
| 540 |
while ($row = xx_fetch_array ($rs, xx_ASSOC)) { |
| 541 |
$element_id = $row["element_id"]; |
| 542 |
$element_order = $row["element_order"]; |
| 543 |
|
| 544 |
// Increment row counter |
| 545 |
$element_count++; |
| 546 |
|
| 547 |
// If there's an order problem, do this |
| 548 |
if ($element_count != $element_order) { |
| 549 |
|
| 550 |
// Mark as failed |
| 551 |
$passed_card = 0; |
| 552 |
|
| 553 |
// Reset the order |
| 554 |
$sub_sql = "UPDATE element |
| 555 |
SET element_order = " |
| 556 |
. $element_count |
| 557 |
. " WHERE page_id = " |
| 558 |
. $page_id |
| 559 |
. " AND element_id = " |
| 560 |
. $element_id; |
| 561 |
if (xx_tryquery ($sub_sql)) printf("Row #%d reported cardinal order of %d, but calculated at %d. Fixed.<br>\n", $element_count, $element_order, $element_count); |
| 562 |
|
| 563 |
} // if an order discrepancy was found |
| 564 |
|
| 565 |
} // for all elements, check their orders and fix (if needed) |
| 566 |
|
| 567 |
// If no problems found |
| 568 |
if ($passed_card == 1) printf("No cardinal order errors found.<br>\n"); |
| 569 |
|
| 570 |
} // end updateOrders |
| 571 |
|
| 572 |
|
| 573 |
/********************************************************** |
| 574 |
Function: updateOrphans |
| 575 |
Author: Paul Bramscher |
| 576 |
Last Modified: 03.04.2004 |
| 577 |
*********************************************************** |
| 578 |
Purpose: |
| 579 |
Walks through a page and hunts for orphaned/bastard |
| 580 |
children. Hunts for most likely parent and attaches the |
| 581 |
child to it. |
| 582 |
**********************************************************/ |
| 583 |
function updateOrphans($page_id) { |
| 584 |
|
| 585 |
// Initialize |
| 586 |
$passed_orphan = 1; |
| 587 |
|
| 588 |
printf("<b>Method #1 Attach orphans to a foster parent</b><br><br>\n"); |
| 589 |
printf("<b>Messages:</b><br>\n"); |
| 590 |
|
| 591 |
$sql = "SELECT |
| 592 |
element_id, |
| 593 |
element_order, |
| 594 |
parent_id, |
| 595 |
indent_level |
| 596 |
FROM element |
| 597 |
WHERE page_id = " |
| 598 |
. $page_id |
| 599 |
. " ORDER BY element_order"; |
| 600 |
|
| 601 |
$rs = xx_tryquery($sql); |
| 602 |
|
| 603 |
while ($row = xx_fetch_array ($rs, xx_ASSOC)) { |
| 604 |
$element_id = $row["element_id"]; |
| 605 |
$element_order = $row["element_order"]; |
| 606 |
$parent_id = $row["parent_id"]; |
| 607 |
$indent_level = $row["indent_level"]; |
| 608 |
|
| 609 |
$new_parent_id = parentProbe($page_id, $element_order, $indent_level); |
| 610 |
$orphaned = 0; |
| 611 |
$orphaned = isOrphan($element_id, $element_order, $page_id, $parent_id); |
| 612 |
|
| 613 |
// Hunt for most likely parent, and assign to it instead. |
| 614 |
if ($parent_id > 0 && $orphaned == 1) { |
| 615 |
|
| 616 |
// Mark as failed |
| 617 |
$passed_orphan = 0; |
| 618 |
|
| 619 |
$sub_sql = "UPDATE element |
| 620 |
SET parent_id = " |
| 621 |
. $new_parent_id |
| 622 |
. " WHERE page_id = " |
| 623 |
. $page_id |
| 624 |
. " AND element_id = " |
| 625 |
. $element_id; |
| 626 |
if (xx_tryquery ($sub_sql)) printf("Element #%d orphaned. Reassigned to parent #%d<br>\n", $element_id, $new_parent_id); |
| 627 |
|
| 628 |
} // reassign problematic elements |
| 629 |
|
| 630 |
} // for all elements with a problematic ancestry, find a most likely parent |
| 631 |
|
| 632 |
if ($passed_orphan == 1) printf("No orphans found.<br>\n"); |
| 633 |
|
| 634 |
} // end updateOrphans |
| 635 |
?> |
Parent Directory
| 
Revision Log