re-licensed under GPLv3

[wfpl.git] / db.php

diff --git a/db.php b/db.php
index 952cc23..4a58db8 100644 (file)
--- a/db.php
+++ b/db.php
@@ -2,21 +2,18 @@
 
 #  Copyright (C) 2006 Jason Woofenden
 #
-#  This file is part of wfpl.
-#
-#  wfpl is free software; you can redistribute it and/or modify it under the
-#  terms of the GNU Lesser General Public License as published by the Free
-#  Software Foundation; either version 2.1 of the License, or (at your option)
-#  any later version.
-#
-#  wfpl is distributed in the hope that it will be useful, but WITHOUT ANY
-#  WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
-#  FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public License for
-#  more details.
-#
-#  You should have received a copy of the GNU Lesser General Public License
-#  along with wfpl; if not, write to the Free Software Foundation, Inc., 51
-#  Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+#  This program is free software: you can redistribute it and/or modify
+#  it under the terms of the GNU General Public License as published by
+#  the Free Software Foundation, either version 3 of the License, or
+#  (at your option) any later version.
+#  
+#  This program is distributed in the hope that it will be useful,
+#  but WITHOUT ANY WARRANTY; without even the implied warranty of
+#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#  GNU General Public License for more details.
+#  
+#  You should have received a copy of the GNU General Public License
+#  along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 
 require_once('code/wfpl/encode.php');
@@ -101,17 +98,16 @@ function db_send_query($sql) {
 # %"  output double quotes, surrounding the variable which is encoded to be in there.
 # %s  output encoded to be in double quotes, but don't output the quotes
 #
-# complex example: db_get_rows('mytable', 'id', 'name=%" or company like "%%%s%%"', $name, $company_partial);
+# complex example: db_get_rows('mytable', 'id', 'where name=%" or company like "%%%s%%"', $name, $company_partial);
 
 function db_printf($str) {
        $args = func_get_args();
        $args = array_slice($args, 1);
-       _db_printf($str, $args);
+       return _db_printf($str, $args);
 }
 
 # This function does the work, but takes the parameters in an array
 function _db_printf($str, $args) {
-       $args = array_reverse($args); # because array_pop() takes from the end
        $out = '';
        while($str) {
                $pos = strpos($str, '%');
@@ -129,9 +125,11 @@ function _db_printf($str, $args) {
                $str = substr($str, $pos + 2);
 
                if($chr == '"') {
-                       $out .= '"' . enc_sql(array_pop($args)) . '"';
+                       $out .= '"' . enc_sql(array_shift($args)) . '"';
+               } elseif($chr == 's') {
+                       $out .= enc_sql(array_shift($args));
                } elseif($chr == 'i') {
-                       $int = format_int(array_pop($args));
+                       $int = format_int(array_shift($args));
                        if($int == '') $int = '0';
                        $out .= $int;
                } else {
@@ -146,7 +144,7 @@ function _db_printf($str, $args) {
 function db_send_get($table, $columns, $where, $args) {
        $sql = "SELECT $columns FROM $table";
        if($where) {
-               $sql .= ' WHERE ' . _db_printf($where, $args);
+               $sql .= ' ' . _db_printf($where, $args);
        }
 
        return db_send_query($sql);
@@ -210,6 +208,12 @@ function db_get_value($table, $columns, $where = '') {
        return $value;
 }
 
+function db_count($table, $where = '') {
+       $args = func_get_args();
+       array_splice($args, 1, 0, array('count(*)'));
+       return call_user_func_array('db_get_value', $args);
+}
+
 # call either of these ways:
 #
 # db_insert('people', 'name,company', 'jason', 'widgets ltd');
@@ -265,17 +269,17 @@ function db_insert_ish($command, $table, $columns, $values) {
 # db_update('users', 'name', 'Bruce');
 #
 # # name user #6 Bruce
-# db_update('users', 'name', 'Bruce', 'id= %"', 6);
+# db_update('users', 'name', 'Bruce', 'where id=%i', 6);
 #
 # # update the whole bit for user #6
-# db_update('users', 'name,email,description', 'Bruce', 'bruce@example.com', 'is a cool guy', 'id= %"', 6);
+# db_update('users', 'name,email,description', 'Bruce', 'bruce@example.com', 'is a cool guy', 'where id=%i', 6);
 #
 # # update the whole bit for user #6 (passing data as an array)
 # $data = array('Bruce', 'bruce@example.com', 'is a cool guy');
-# db_update('users', 'name,email,description', $data, 'id= %"', 6);
+# db_update('users', 'name,email,description', $data, 'where id=%i', 6);
 
 # The prototype is really something like this:
-# db_update(table, columns, values..., where(optional), where_args...(optional
+# db_update(table, columns, values..., where(optional), where_args...(optional))
 function db_update($table, $columns, $values) {
        $args = func_get_args();
        $args = array_slice($args, 2);
@@ -305,7 +309,7 @@ function db_update($table, $columns, $values) {
                $where = $args[0];
                $args = array_slice($args, 1);
 
-               $sql .= ' WHERE ';
+               $sql .= ' ';
                # any left for where claus arguments?
                if($args) {
                        $sql .= _db_printf($where, $args);
@@ -322,7 +326,7 @@ function db_update($table, $columns, $values) {
 function db_delete($table, $where = '') {
        $sql = "DELETE FROM $table";
        if($where) {
-               $sql .= ' WHERE ';
+               $sql .= ' ';
                $args = func_get_args();
                $args = array_slice($args, 2);
                if($args) {