| <?php | <?php |
| $conn = pg_connect("dbname=bus user=postgres password=snmc"); | $conn = pg_connect("dbname=bus user=postgres password=snmc"); |
| if (!$conn) { | if (!$conn) { |
| echo "An error occured.\n"; | echo "An error occured.\n"; |
| exit; | exit; |
| } | } |
| if ($_REQUEST['oldgeopo']) { | if ($_REQUEST['oldgeopo']) { |
| $sql = " DELETE from stops WHERE geohash = '{$_REQUEST['oldgeopo']}'"; | $sql = " DELETE from stops WHERE geohash = '{$_REQUEST['oldgeopo']}'"; |
| $result = pg_query($conn, $sql); | $result = pg_query($conn, $sql); |
| if (!$result) { | if (!$result) { |
| echo("Error in SQL query: " . pg_last_error() . "<br>\n"); | echo("Error in SQL query: " . pg_last_error() . "<br>\n"); |
| } else { | } else { |
| echo "Deleted {$_REQUEST['oldgeopo']}<br>"; | echo "Deleted {$_REQUEST['oldgeopo']}<br>"; |
| $updatedroutes = 0; | |
| $result_outdatedroutes = pg_query($conn, "Select * FROM between_stops where points LIKE '%" . $_REQUEST['oldgeopo'] . ";%'"); | |
| while ($outdatedroute = pg_fetch_assoc($result_outdatedroutes)) { | |
| $newpoints = str_replace($_REQUEST['oldgeopo'].';', '', $outdatedroute['points']); | |
| $sql = "UPDATE between_stops set points='$newpoints' where fromlocation = '{$outdatedroute['fromlocation']}' AND tolocation = '{$outdatedroute['tolocation']}' "; | |
| $result = pg_query($conn, $sql); | |
| if (!$result) { | |
| echo("Error in SQL query: " . pg_last_error() . "<br>\n"); | |
| } | |
| echo "updated ".$outdatedroute['fromlocation']."->".$outdatedroute['tolocation']."<br>"; | |
| $updatedroutes++; | |
| } | |
| echo "updated $updatedroutes routes<br>"; | |
| } | } |
| } | } |
| flush(); | flush(); |
| ?> | ?> |
| <?php | <?php |
| /* | /* |
| * GeoPo Encode in PHP | * GeoPo Encode in PHP |
| * @author : Shintaro Inagaki | * @author : Shintaro Inagaki |
| * @param $location (Array) | * @param $location (Array) |
| * @return $geopo (String) | * @return $geopo (String) |
| */ | */ |
| function geopoEncode($lat, $lng) | function geopoEncode($lat, $lng) |
| { | { |
| // 64characters (number + big and small letter + hyphen + underscore) | // 64characters (number + big and small letter + hyphen + underscore) |
| $chars = "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ-_"; | $chars = "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ-_"; |
| $geopo = ""; | $geopo = ""; |
| $scale = 7; | $scale = 7; |
| // Change a degree measure to a decimal number | // Change a degree measure to a decimal number |
| $lat = ($lat + 90) / 180 * pow(8, 10); | $lat = ($lat + 90) / 180 * pow(8, 10); |
| $lng = ($lng + 180) / 360 * pow(8, 10); | $lng = ($lng + 180) / 360 * pow(8, 10); |
| // Compute a GeoPo code from head and concatenate | // Compute a GeoPo code from head and concatenate |
| for ($i = 0; $i < $scale; $i++) { | for ($i = 0; $i < $scale; $i++) { |
| $geopo .= substr($chars, floor($lat / pow(8, 9 - $i) % 8) + floor($lng / pow(8, 9 - $i) % 8) * 8, 1); | $geopo .= substr($chars, floor($lat / pow(8, 9 - $i) % 8) + floor($lng / pow(8, 9 - $i) % 8) * 8, 1); |
| } | } |
| return $geopo; | return $geopo; |
| } | } |
| /* | /* |
| * GeoPo Decode in PHP | * GeoPo Decode in PHP |
| * @author : Shintaro Inagaki | * @author : Shintaro Inagaki |
| * @param $geopo (String) | * @param $geopo (String) |
| * @return $location (Array) | * @retu |