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Allow the user to search for a range of years

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Markus Jochim
2014-12-04 22:41:33 +01:00
committed by Martin Monperrus
parent 24d8902132
commit 0897e0fac6
1 changed files with 82 additions and 0 deletions
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bibtexbrowser.php
+82
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@@ -139,6 +139,7 @@ function bibtexbrowser_configure($key, $value) {
@define('Q_ACADEMIC', 'academic');
@define('Q_DB', 'bibdb');
@define('Q_LATEST', 'latest');
@define('Q_RANGE', 'range');
@define('AUTHOR', 'author');
@define('EDITOR', 'editor');
@define('SCHOOL', 'school');
@@ -3215,6 +3216,25 @@ class BibDataBase {
break;
}
}
else if ($field==Q_RANGE) {
$year = $bib->getYear();
$withinRange = false;
foreach ($query[Q_RANGE] as $elements) {
if ($elements[0] === "" && $elements[1] === "")
$withinRange = true;
else if ($elements[0] === "" && $year <= $elements[1])
$withinRange = true;
else if ($elements[1] === "" && $year >= $elements[0])
$withinRange = true;
else if ($year <= $elements[1] && $year >= $elements[0]) {
$withinRange = true;
}
}
if (!$withinRange)
$entryisselected = false;
}
else {
if (!$bib->hasPhrase($fragment, $field)) {
$entryisselected = false;
@@ -3854,6 +3874,68 @@ class Dispatcher {
function type() {
$this->query[Q_TYPE]= $_GET[Q_TYPE];
}
/**
* Allow the user to search for a range of dates
*
* The query string can comprise several elements separated by commas and
* optionally white-space.
* Each element can either be one number (a year) or two numbers
* (a range of years) separated by anything non-numerical.
*
*/
function range() {
$ranges = explode(',', $_GET[Q_RANGE]);
$result = array();
$nextYear = 1 + (int) date('Y');
$nextYear2D = $nextYear % 100;
$thisCentury = $nextYear - $nextYear2D;
foreach ($ranges as $range) {
$range = trim($range);
preg_match('/([0-9]*)([^0-9]*)([0-9]*)/', $range, $matches);
array_shift($matches);
// If the number is empty, leave it empty - dont put it to 0
// If the number is two-digit, assume it to be within the last century or next year
if ($matches[0] === "") {
$lower = "";
} else if ($matches[0] < 100) {
if ($matches[0] > $nextYear2D) {
$lower = $thisCentury + $matches[0] - 100;
} else {
$lower = $thisCentury + $matches[0];
}
} else {
$lower = $matches[0];
}
// If no separator to indicate a range of years was supplied,
// the upper and lower boundaries are the same.
//
// Otherwise, again:
// If the number is empty, leave it empty - dont put it to 0
// If the number is two-digit, assume it to be within the last century or next year
if ($matches[1] === "")
$upper = $lower;
else {
if ($matches[2] === "") {
$upper = "";
} else if ($matches[2] < 100) {
if ($matches[2] > $nextYear2D) {
$upper = $thisCentury + $matches[2] - 100;
} else {
$upper = $thisCentury + $matches[2];
}
} else {
$upper = $matches[2];
}
}
$result[] = array($lower, $upper);
}
$this->query[Q_RANGE] = $result;
}
function menu() {
$menu = createMenuManager();