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Slice PMA_dbSearchGetWhereClause out of PMA_getSearchSqls

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This commit is contained in:
Atul Pratap Singh 2012-06-27 07:58:23 +05:30
parent f2057c4751
commit 23107c0521
1 changed files with 64 additions and 49 deletions
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113
db_search.php
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@ -136,69 +136,29 @@ if (isset($_REQUEST['submit_search'])) {
// Statement types
$sqlstr_select = 'SELECT';
$sqlstr_delete = 'DELETE';
// Fields to select
$tblfields = PMA_DBI_get_columns($GLOBALS['db'], $table);
// Table to use
$sqlstr_from = ' FROM ' . PMA_backquote($GLOBALS['db']) . '.' . PMA_backquote($table);
// Search words or pattern
$search_words = (($search_option > 2) ? array($search_str) : explode(' ', $search_str));
$like_or_regex = (($search_option == 4) ? 'REGEXP' : 'LIKE');
$automatic_wildcard = (($search_option < 3) ? '%' : '');
$fieldslikevalues = array();
foreach ($search_words as $search_word) {
// Eliminates empty values
if (strlen($search_word) === 0) {
continue;
}
$thefieldlikevalue = array();
foreach ($tblfields as $tblfield) {
if (! isset($field) || strlen($field) == 0 || $tblfield['Field'] == $field) {
// Drizzle has no CONVERT and all text columns are UTF-8
if (PMA_DRIZZLE) {
$thefieldlikevalue[] = PMA_backquote($tblfield['Field'])
. ' ' . $like_or_regex . ' '
. "'" . $automatic_wildcard
. $search_word
. $automatic_wildcard . "'";
} else {
$thefieldlikevalue[] = 'CONVERT(' . PMA_backquote($tblfield['Field']) . ' USING utf8)'
. ' ' . $like_or_regex . ' '
. "'" . $automatic_wildcard
. $search_word
. $automatic_wildcard . "'";
}
}
} // end for
if (count($thefieldlikevalue) > 0) {
$fieldslikevalues[] = implode(' OR ', $thefieldlikevalue);
}
} // end for
$implode_str = ($search_option == 1 ? ' OR ' : ' AND ');
if ( empty($fieldslikevalues)) {
// this could happen when the "inside field" does not exist
// in any selected tables
$sqlstr_where = ' WHERE FALSE';
} else {
$sqlstr_where = ' WHERE (' . implode(') ' . $implode_str . ' (', $fieldslikevalues) . ')';
}
unset($fieldslikevalues);
$where_clause = PMA_dbSearchGetWhereClause(
$table, $search_words, $search_option, $field, $like_or_regex,
$automatic_wildcard
);
// Builds complete queries
$sql['select_fields'] = $sqlstr_select . ' * ' . $sqlstr_from . $sqlstr_where;
$sql['select_fields'] = $sqlstr_select . ' * ' . $sqlstr_from . $where_clause;
// here, I think we need to still use the COUNT clause, even for
// VIEWs, anyway we have a WHERE clause that should limit results
$sql['select_count'] = $sqlstr_select . ' COUNT(*) AS `count`' . $sqlstr_from . $sqlstr_where;
$sql['delete'] = $sqlstr_delete . $sqlstr_from . $sqlstr_where;
$sql['select_count'] = $sqlstr_select . ' COUNT(*) AS `count`' . $sqlstr_from . $where_clause;
$sql['delete'] = $sqlstr_delete . $sqlstr_from . $where_clause;
return $sql;
} // end of the "PMA_getSearchSqls()" function
$response->addHTML(
PMA_dbSearchGetSearchResults(
$tables_selected, $searched, $option_str,
@ -207,6 +167,61 @@ if (isset($_REQUEST['submit_search'])) {
);
} // end 1.
/**
* Provides where clause for bulding SQL query
*
* @param string $table the table name
* @param integer $search_words Search words or pattern
* @param integer $search_option type of search
* (1 -> 1 word at least, 2 -> all words,
* 3 -> exact string, 4 -> regexp)
* @param string $field Restrict the search to this field
* @param string $like_or_regex Whether to use 'LIKE' or 'REGEXP'
* @param string $automatic_wildcard Use automatic wildcard
*
* @return string The generated where clause
*/
function PMA_dbSearchGetWhereClause($table, $search_words, $search_option, $field,
$like_or_regex, $automatic_wildcard
) {
$where_clause = '';
// Fields to select
$tblfields = PMA_DBI_get_columns($GLOBALS['db'], $table);
$fieldslikevalues = array();
foreach ($search_words as $search_word) {
// Eliminates empty values
if (strlen($search_word) === 0) {
continue;
}
$thefieldlikevalue = array();
// for each field in the table
foreach ($tblfields as $tblfield) {
if (! isset($field) || strlen($field) == 0 || $tblfield['Field'] == $field) {
// Drizzle has no CONVERT and all text columns are UTF-8
$column = ((PMA_DRIZZLE)
? PMA_backquote($tblfield['Field'])
: 'CONVERT(' . PMA_backquote($tblfield['Field']) . ' USING utf8)');
$thefieldlikevalue[] = $column . ' ' . $like_or_regex . ' '
. "'" . $automatic_wildcard . $search_word . $automatic_wildcard . "'";
}
} // end for
if (count($thefieldlikevalue) > 0) {
$fieldslikevalues[] = implode(' OR ', $thefieldlikevalue);
}
} // end for
$implode_str = ($search_option == 1 ? ' OR ' : ' AND ');
if ( empty($fieldslikevalues)) {
// this could happen when the "inside field" does not exist
// in any selected tables
$where_clause = ' WHERE FALSE';
} else {
$where_clause = ' WHERE (' . implode(') ' . $implode_str . ' (', $fieldslikevalues) . ')';
}
return $where_clause;
}
/**
* Displays database search results
*