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<?php |
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/********************************************************** |
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Function: newResPageHeader |
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Author: Paul Bramscher |
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Last Modified: 06.25.2003 |
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*********************************************************** |
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Draws the HTML header of the enter new resource page at the |
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point of checking for possible matches. The header is |
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pulled out separately here, since we may not always want |
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it to display. In the event of no fuzzy (or exact) |
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matches we redirect the user to formResource and, hence, |
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cannot output this header. |
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**********************************************************/ |
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function newResPageHeader() { |
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|
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// Load globals |
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include ("global_vars.php"); |
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|
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// HTML header |
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printf("<HTML>\n"); |
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printf("<HEAD>\n"); |
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printf("<title>LibData: Enter a New Resource</title>\n"); |
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printf("<link rel=\"stylesheet\" href=\"%s\" type=\"text/css\">\n", $GLOBAL_ADMIN_CSS); |
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printf("</HEAD>\n"); |
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|
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// Page header |
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include($GLOBAL_ADMIN_HEADER); |
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printf("<center>\n"); |
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printf("<h3>Adding New Resource..</h3>\n"); |
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|
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} |
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|
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|
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/********************************************************** |
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Function: resTitlePat |
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Original Author: Paul Bramscher <brams006@umn.edu> |
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Last Modified: 03.03.2004 |
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*********************************************************** |
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Comments: |
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This function takes $string as input and builds eight |
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permutations of it into an SQL query against resource |
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titles. These permutations are meant as possible matches. |
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This is not an exact science, and this algorithm could |
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certainly be further tweaked. |
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|
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Pass definitions: |
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|
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pass1 = left 50% of string, remainder wildcarded |
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pass2 = middle 80%, both ends wildcarded |
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pass3 = compacted without spaces |
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pass4 = a/and/the articles removed |
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pass5 = every other starting with 0 position |
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pass6 = every other starting with 1 position |
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pass7 = replacing 'ies' with 'y' |
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pass8 = replacing 'y' with 'ies' |
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**********************************************************/ |
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function resTitlePat($string) { |
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|
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// Save this for display purposes |
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$title = $string; |
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$title = stripslashes($string); |
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|
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// Clean up the string -- we must remove single quotes and slashes |
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$string = ereg_replace("'","",$string); |
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$string = stripslashes($string); |
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|
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// Initialize |
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$pass1 = ""; |
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$pass2 = ""; |
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$pass3 = ""; |
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$pass4 = ""; |
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$pass5 = ""; |
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$pass6 = ""; |
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$pass7 = ""; |
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$pass8 = ""; |
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|
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// String sizes. |
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$length = strlen($string); |
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$max_length = ceil($length * 2); |
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|
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// Permute #1: Match left 50% |
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$left50_pos = floor($length * .5); |
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$pass1 = substr($string, 0, $left50_pos); |
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|
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// Permute #2: Cut-out and float match middle 80% substring |
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$left20_pos = floor($length * .2); |
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$pass2 = substr($string, $left20_pos, $length - ($left20_pos * 2)); |
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|
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// Permute #3: Compacting, remove all whitespaces. |
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$pass3 = $string; |
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$pass3 = ereg_replace(" ","",$pass3); |
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|
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// Permute #4: Pulling out a/an/the articles |
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$pass4 = $string; |
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$pass4 = ereg_replace("the ","",$pass4); |
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$pass4 = ereg_replace("a ","",$pass4); |
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$pass4 = ereg_replace("an ","",$pass4); |
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|
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// Permute #5: Wildcard every other position, starting with 0 |
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$pass5 = $string; |
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for ($x = 0; $x < strlen($pass5); $x++) { |
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|
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if ($x % 2 == 0) $pass5[$x] = "_"; |
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|
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} |
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|
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// Permute #6: Wildcard every other position, starting with 1 |
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$pass6 = $string; |
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for ($x = 0; $x < strlen($pass6); $x++) { |
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|
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if ($x % 2 == 1) $pass6[$x] = "_"; |
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|
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} |
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|
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// Permute #7: Replacing 'ies' with 'y' |
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$pass7 = $string; |
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$pass7 = ereg_replace("ies","y", $pass7); |
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|
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// Permute #8: Replacing 'y' with 'ies' |
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$pass8 = $string; |
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$pass8 = ereg_replace("y","ies", $pass8); |
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|
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// Assemble the SQL |
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$sql = "SELECT resource_id, title FROM resource WHERE (title LIKE '" |
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. $pass1 |
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. "%' OR title LIKE '%" |
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. $pass2 |
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. "%' OR title LIKE '%" |
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. $pass3 |
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. "%' OR title LIKE '%" |
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. $pass4 |
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. "%' OR title LIKE '%" |
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. $pass5 |
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. "%' OR title LIKE '%" |
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. $pass6 |
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. "%' OR title LIKE '%" |
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. $pass7 |
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. "%' OR title LIKE '%" |
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. $pass8 |
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. "%') AND (LENGTH(title) >= " |
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. $left50_pos |
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. " AND LENGTH(title) <= " |
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. $max_length |
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. ")"; |
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|
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// Debugging |
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// printf("sql was: %s", $sql); |
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|
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$rs = xx_tryquery($sql); |
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$hits = xx_num_rows($rs); |
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if ($hits > 0) { |
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|
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// Draw page header |
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newResPageHeader(); |
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|
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// Table |
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printf("<table width = \"60%%\" border = \"3\" cellpadding =\"4\" class=\"backLight\">\n"); |
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printf("<tr><td>\n"); |
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printf("<b>Messages:</b><br>\n"); |
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|
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printf ("Possible duplicate resource titles found with title '%s'. Are you sure you want to continue?<br><br>\n", $title); |
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while ($row = xx_fetch_array ($rs, xx_ASSOC)) { |
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$title = $row["title"]; |
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$resource_id = $row["resource_id"]; |
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|
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printf("<b>Resource ID:</b> %d ", $resource_id); |
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printf("<b>Title:</b> %s<BR>\n", $title); |
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|
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} // this result set |
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|
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// Close things |
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printf("<br><br>\n"); |
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printf("</td></tr></table>\n"); |
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printf("</center>\n"); |
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|
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} |
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|
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|
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return $hits; |
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|
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} // end of php function |
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?> |
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