如果帖子刚刚发布或更新,是否有办法只在模板上执行一部分代码?
我需要如何包装这些代码?
UPDATE:
我需要检查我的自定义帖子类型“members”是否已保存。我用来显示帖子的模板是单成员。php。
如果帖子已经保存,那么就在我的单身会员上。php模板,我需要调用get_template_part(\'geocode\');
- but only if the post has been saved.
I DON\'T WANT THIS TO HAPPEN IN THE ADMIN AREA, THIS NEEDS TO HAPPEN FRONT-END OF THE WEBSITE. OBVIOUSLY THE ONLY THING I WANT TO DO IN THE ADMIN AREA IS TO CLICK PUBLISH/UPDATE.
这是地理代码中的内容。php文件:
<?php
require("database.php");
// Opens a connection to a MySQL server
$con = mysql_connect("localhost", $username, $password);
if (!$con)
{
die(\'Could not connect: \' . mysql_error());
}
mysql_select_db("medicom_wp", $con);
$company = get_field(\'company_name\');
$address = get_field(\'address\');
$city = get_field(\'city\');
$post_code = get_field(\'post_code\');
$sql = sprintf("select count(\'x\') as cnt from markers where `name` = \'%s\'", mysql_real_escape_string($company));
$row_dup = mysql_fetch_assoc(mysql_query($sql,$con));
if ($row_dup[\'cnt\'] == 0) {
mysql_query("INSERT INTO markers (`name`, `address`, `lat`, `lng`, `type`) VALUES (\'".$company."\', \'".$address.", ".$city.", ".$post_code."\', \'0.0\', \'0.0\', \'\')");
}
wp_reset_query();
define("MAPS_HOST", "maps.google.com");
define("KEY", "");
// Opens a connection to a MySQL server
$connection = mysql_connect("localhost", $username, $password);
if (!$connection) {
die("Not connected : " . mysql_error());
}
// Set the active MySQL database
$db_selected = mysql_select_db($database, $connection);
if (!$db_selected) {
die("Can\\\'t use db : " . mysql_error());
}
// Select all the rows in the markers table
$query = "SELECT * FROM markers WHERE 1";
$result = mysql_query($query);
if (!$result) {
die("Invalid query: " . mysql_error());
}
// Initialize delay in geocode speed
$delay = 0;
$base_url = "http://" . MAPS_HOST . "/maps/geo?output=xml" . "&key=" . KEY;
// Iterate through the rows, geocoding each address
while ($row = @mysql_fetch_assoc($result)) {
$geocode_pending = true;
while ($geocode_pending) {
$address = $row["address"];
$id = $row["id"];
$request_url = $base_url . "&q=" . urlencode($address);
$xml = simplexml_load_file($request_url) or die("url not loading");
$status = $xml->Response->Status->code;
if (strcmp($status, "200") == 0) {
// Successful geocode
$geocode_pending = false;
$coordinates = $xml->Response->Placemark->Point->coordinates;
$coordinatesSplit = split(",", $coordinates);
// Format: Longitude, Latitude, Altitude
$lat = $coordinatesSplit[1];
$lng = $coordinatesSplit[0];
$query = sprintf("UPDATE markers " .
" SET lat = \'%s\', lng = \'%s\' " .
" WHERE id = \'%s\' LIMIT 1;",
mysql_real_escape_string($lat),
mysql_real_escape_string($lng),
mysql_real_escape_string($id));
$update_result = mysql_query($query);
if (!$update_result) {
die("Invalid query: " . mysql_error());
}
} else if (strcmp($status, "620") == 0) {
// sent geocodes too fast
$delay += 1000;
} else {
// failure to geocode
$geocode_pending = false;
echo "Address " . $address . " failed to geocoded. ";
echo "Received status " . $status . "
\\n";
}
usleep($delay);
}
}
?>
SO网友:mrwweb
我最近使用了几乎完全相同的用例:
保存自定义帖子类型时,请检查是否存在某些元数据如果存在,请使用Google geocode API对其进行地理编码将结果另存为一个新的元字段(这个字段是隐藏的,这样用户就不会搞砸了)注意:我对网站前端数据的处理是使用javascript和Google Maps API在模板文件中处理的看起来您正在组合多个字段以获取地址(我将其存储在一个字段中),并以不同的方式保存结果格式,但希望这可以作为一个很好的示例,供您借鉴。正如我一直尝试的那样,我使用WordPress API函数查询并保存到数据库。它更安全,经得起未来考验。
正如@OriginalEXE所建议的,我使用了save_post
hook. 我觉得你不需要publish_post
:
save\\u post是在创建或更新帖子或页面时触发的操作,可以通过导入、帖子/页面编辑表单、xmlrpc或电子邮件发布。
还有一些注意事项:
请注意行动的优先级较低。我发现,将其保留为默认优先级后,它会查看以前保存的数据(这些数据是使用高级自定义字段保存的,看起来您正在使用这些字段)地理编码课程不是我的,为我节省了大量时间。我修改了Sergiy发布的内容以使用wp_remote_get()
具有更好的服务器支持的函数curl
或file_get_contents
. 它使用JSON(谷歌推荐)请求,而不是XML我把它放在一个功能插件中,但在functions.php
:
/* function wc_add_latlong()
* take address from post, geocode it, and save as a custom meta field
* @parameter $post_id, id of the post being saved, passed by save_post hook
* @returns nothing
**************************************/
function wc_add_latlong( $post_id ) {
// get the address from ACF field
$address = get_field( \'wc_map_address\', $post_id );
// Check to see if the post type is right, it\'s not a revision, and there is an address to geocode
if( get_post_type( $post_id ) == \'wc_biz\' && !wp_is_post_revision( $post_id ) && $address ) {
// call the geocoder class below
$coords = geocoder::getLocation( $address );
// split latLngObject with a comma and space
$lat_long_string = $coords[\'lat\'] . \', \' . $coords[\'lng\'];
// either add that value as a new post meta field OR update the existing one
add_post_meta( $post_id, \'_wc_lat_long\', $lat_long_string, true ) || update_post_meta( $post_id, \'_wc_lat_long\', $lat_long_string );
}
}
// This runs on the save_post hook
add_action( \'save_post\', \'wc_add_latlong\', 11 );
// Thank you Sergiy!
// http://erlycoder.com/45/php-server-side-geocoding-with-google-maps-api-v3
// a class to get the lat and long of an address _server-side_
class geocoder{
// The base URL for a non-sensor json Google Geocode API request
static private $url = "http://maps.google.com/maps/api/geocode/json?sensor=false&address=";
static public function getLocation($address){
// append URL-friendly address to base URL
$url = self::$url.urlencode($address);
// request the Geocode JSON object from Google
$resp_json = wp_remote_get($url);
// decode the body of the response
$resp = json_decode( wp_remote_retrieve_body($resp_json), true );
// make sure the remove_get was successful and it geocoded the address
if( !is_wp_error( $resp_json ) && $resp[\'status\']=\'OK\' ) {
// success! return the lat and long
return $resp[\'results\'][0][\'geometry\'][\'location\'];
}else{
// we failed, return false
return false;
}
}
}
更新:我已经对所有代码进行了注释,以便您能够理解发生了什么。你必须从那里适应它。