[wp-hackers] array_push on update_user_meta
Gregory Lancaster
greglancaster71 at gmail.com
Thu Oct 31 21:18:42 UTC 2013
Sure;
add_action('wp_ajax_my_add_friend_action', 'my_add_friend_action');
add_action('wp_ajax_nopriv_my_add_friend_action', 'my_add_friend_action');
function my_add_friend_action() {
global $wpdb;
$profileID = $_POST['profileID'];
$userID = $_POST['userID'];
$chkMetaValue = get_user_meta($userID,"friends");
if ( ! is_array($chkMetaValue) )
$chkMetaValue = array();
$chkMetaValue[] = $profileID;
// activity_tracker($current_user, 'added_friend', 'prof');
update_user_meta( $userID, 'friends', $chkMetaValue );
$response = array( 'success' => true );
wp_send_json_success($response);
die();
}
function follow_status($author_id) {
global $wpdb, $current_user;
get_currentuserinfo();
//authorID is the userID of the profile owner
$active_user = $current_user->ID;
$active_user_friends = get_user_meta($active_user, 'friends', true);
if (in_array($author_id, $active_user_friends)) {
$follow_status = "<button id='remove_friend'>Remove Friend</button>";
} else {
$follow_status = "<button id='add_friend'>Add Friend</button>";
}
return $follow_status;
}
and calling in the profile page with:
echo follow_status($author_id);
On Thu, Oct 31, 2013 at 2:16 PM, J.D. Grimes <jdg at codesymphony.co> wrote:
> Could you post your code again? Somewhere you are still getting the value
> wrapped in an extra array.
>
>
> On Oct 31, 2013, at 5:08 PM, Gregory Lancaster <greglancaster71 at gmail.com>
> wrote:
>
> > No I must have screwed something up man, it only shows the last value. I
> > searched for awhile before responding here, and I see some people say
> > in_array adds a line between items and sometimes other folks needed to
> > strip those. But I have no idea if thats whats going on here. It all
> > looks like it should function. :-/ Maybe I need to get off the computer
> > for awhile.
> >
> > I var_dump using the function you shared, and this is what the friend
> array
> > looks like from there:
> >
> > array(2) {\n [0]=>\n array(2) {\n [0]=>\n array(2) {\n
> [0]=>\n
> > array(2) {\n [0]=>\n array(2) {\n [0]=>\n
> > array(1) {\n [0]=>\n string(1) "1"\n }\n
> > [1]=>\n string(1) "9"\n }\n [1]=>\n
> > string(2) "13"\n }\n [1]=>\n string(2) "16"\n }\n
> > [1]=>\n string(2) "13"\n }\n [1]=>\n string(1) "3"\n}\n
> >
> > I dont know if that assists in debugging.
> >
> >
> >
> > On Thu, Oct 31, 2013 at 1:52 PM, J.D. Grimes <jdg at codesymphony.co>
> wrote:
> >
> >> OK, you need to just delete that meta row and start over. It is messed
> up
> >> from before. Do that and see if it works.
> >>
> >> On Oct 31, 2013, at 4:49 PM, Gregory Lancaster <
> greglancaster71 at gmail.com>
> >> wrote:
> >>
> >>> I have it set to true:
> >>>
> >>> $active_user_friends = get_user_meta($active_user, 'friends', true);
> >>> But the issue is that it only shows the "friended" code for the last
> >> user I
> >>> added. If I click add on one profile, and then to a second, the first
> no
> >>> longer shows friend added. Even if I have clearly added several to the
> >>> array:
> >>>
> >>>
> >>
> a:2:{i:0;a:2:{i:0;a:2:{i:0;a:2:{i:0;a:2:{i:0;a:2:{i:0;s:0:"";i:1;s:2:"16";}i:1;s:2:"12";}i:1;s:2:"13";}i:1;s:2:"12";}i:1;s:1:"3";}i:1;s:2:"13";}
> >>>
> >>>
> >>>
> >>>
> >>> On Thu, Oct 31, 2013 at 1:40 PM, J.D. Grimes <jdg at codesymphony.co>
> >> wrote:
> >>>
> >>>> No, you don’t need to use unserialize, that is all done automatically
> by
> >>>> the WordPress functions.
> >>>>
> >>>> In the code you posted you still aren’t calling get_user_meta() with
> the
> >>>> third parameter set to true. You need to do that. Right now the array
> >> it is
> >>>> returning looks something like this:
> >>>>
> >>>> array(
> >>>> 0 => array( 3, 45, 6, 33 )
> >>>> )
> >>>>
> >>>> When you call in_array() it is checking if the user ID (say, 3 ) is in
> >> the
> >>>> outer array. But it isn’t, the only thing in it is another array. When
> >> you
> >>>> call get_user_meta() with the third parameter set to true, the
> returned
> >>>> value won’t be wrapped in the outer array like that, so it will work.
> >>>>
> >>>>
> >>>> On Oct 31, 2013, at 4:30 PM, Gregory Lancaster <
> >> greglancaster71 at gmail.com>
> >>>> wrote:
> >>>>
> >>>>> Ah I see. Thank you for explaining JD. It sounds like maybe the
> easier
> >>>>> option is to just create a separate table to store the friends list
> in.
> >>>>> Trying to work with user_meta this way seems like a bad idea.
> >>>>>
> >>>>> Quick question, should I be using unserialize to check the array
> values
> >>>>> using in_array? Because right now this code isnt working. Thats the
> >>>> only
> >>>>> thing that seems to be left out - but when I tried using $unserialize
> >>>> like
> >>>>> this:
> >>>>>
> >>>>> $unserialize = unserialize($active_user_friends);
> >>>>> if (in_array($author_id, $unserialize)) {
> >>>>>
> >>>>> it says this:
> >>>>>
> >>>>>
> >>>>> *Warning*: unserialize() expects parameter 1 to be string, array
> given
> >>>>> and
> >>>>> *Warning*: in_array() expects parameter 2 to be array, boolean given
> >>>>>
> >>>>>
> >>>>>
> >>>>>
> >>>>> --------
> >>>>>
> >>>>>
> >>>>>
> >>>>> add_action('wp_ajax_my_add_friend_action', 'my_add_friend_action');
> >>>>> add_action('wp_ajax_nopriv_my_add_friend_action',
> >>>> 'my_add_friend_action');
> >>>>> function my_add_friend_action() {
> >>>>> global $wpdb;
> >>>>> $profileID = $_POST['profileID'];
> >>>>> $userID = $_POST['userID'];
> >>>>>
> >>>>> $chkMetaValue = get_user_meta($userID,"friends");
> >>>>> if ( ! is_array($chkMetaValue) )
> >>>>> $chkMetaValue = array();
> >>>>> $chkMetaValue[] = $profileID;
> >>>>>
> >>>>> // activity_tracker($current_user, 'added_friend', 'prof');
> >>>>> update_user_meta( $userID, 'friends', $chkMetaValue );
> >>>>> $response = array( 'success' => true );
> >>>>> wp_send_json_success($response);
> >>>>>
> >>>>> die();
> >>>>> }
> >>>>>
> >>>>>
> >>>>> function friend_status($author_id) {
> >>>>> global $wpdb, $current_user;
> >>>>> get_currentuserinfo();
> >>>>>
> >>>>> //authorID is the userID of the profile owner
> >>>>>
> >>>>> $active_user = $current_user->ID;
> >>>>> $active_user_friends = get_user_meta($active_user, 'friends');
> >>>>>
> >>>>> if (in_array($author_id, $active_user_friends, true)) {
> >>>>> $friend_status = "<button id='remove_friend'>Remove Friend</button>";
> >>>>> } else {
> >>>>> $friend_status = "<button id='add_friend'>Add Friend</button>";
> >>>>> }
> >>>>>
> >>>>> return $friend_status;
> >>>>> }
> >>>>>
> >>>>>
> >>>>> That is basically the code I am using to insert the users id into
> their
> >>>>> user_meta table.
> >>>>>
> >>>>>
> >>>>> On Thu, Oct 31, 2013 at 1:08 PM, J.D. Grimes <jdg at codesymphony.co>
> >>>> wrote:
> >>>>>
> >>>>>> There are two ways to use the *_meta functions. The way it looks
> like
> >>>> you
> >>>>>> are doing it is that each user has a single entry in the usermeta
> >> table,
> >>>>>> with the key ‘friends’. The value for this meta key will be stored
> in
> >>>> the
> >>>>>> database as a serialized array, and when it is pulled out (by
> >>>>>> get_user_meta()) it gets unserialized into a PHP array.
> >>>>>>
> >>>>>> Alternative is this: Each user has multiple ‘friend’ meta key rows
> in
> >>>> the
> >>>>>> usermeta table, each one’s meta_value the ID of a single user that
> the
> >>>> user
> >>>>>> has friended.
> >>>>>>
> >>>>>> The benefit of the second option is that the values may be easier to
> >>>>>> search. Much easier. But that may not be important to you right now.
> >>>> (But
> >>>>>> then that could change later…) What if you want to show a list of
> >> users
> >>>> who
> >>>>>> have friended a user? You will be able to do that easily with this.
> >> With
> >>>>>> the first option, it is possible, but more complex and probably
> harder
> >>>> on
> >>>>>> the DB.
> >>>>>>
> >>>>>> The downside is that there are many more rows in usermeta table.
> >>>>>>
> >>>>>> So each of these functions let you target a single row (as in first
> >>>> case)
> >>>>>> or all rows with a key (as in the later case). Whichever way you go,
> >> you
> >>>>>> just need to be consistent through all of the code, obviously.
> >>>>>>
> >>>>>> -J.D.
> >>>>>>
> >>>>>> On Oct 31, 2013, at 3:30 PM, Gregory Lancaster <
> >>>> greglancaster71 at gmail.com>
> >>>>>> wrote:
> >>>>>>
> >>>>>>> What would be the benefit of storing the friends in separate rows?
> I
> >>>> did
> >>>>>>> not know that was an option, but don't see any clear advantages
> >> either.
> >>>>>>> Also, I did just search the codex but dont see anything about
> unique
> >>>>>> rows.
> >>>>>>> (I checked get_user_meta, delete_user_meta, update_user_meta. )
> >>>>>>>
> >>>>>>>
> >>>>>>> On Thu, Oct 31, 2013 at 12:24 PM, J.D. Grimes <jdg at codesymphony.co
> >
> >>>>>> wrote:
> >>>>>>>
> >>>>>>>> Yes, when you call get_user_meta() you need to set the third
> >> parameter
> >>>>>>>> ($single) to true:
> >>>>>>>>
> >>>>>>>> $active_user_friends = get_user_meta( $active_user, ‘friends’,
> true
> >> );
> >>>>>>>>
> >>>>>>>> Otherwise it will return a nested array. Also, just FYI,
> >> alternatively
> >>>>>> you
> >>>>>>>> could leave the get_user_meta() call the way it is, and change it
> so
> >>>>>> that
> >>>>>>>> each friend is stored in a separate meta row (but with the same
> meta
> >>>>>> key -
> >>>>>>>> have a look at the *_user_meta functions on the codex).
> >>>>>>>>
> >>>>>>>> -J.D.
> >>>>>>>>
> >>>>>>>> On Oct 31, 2013, at 3:14 PM, Gregory Lancaster <
> >>>>>> greglancaster71 at gmail.com>
> >>>>>>>> wrote:
> >>>>>>>>
> >>>>>>>>> I thought so. One more question if you dont mind helping;
> >>>>>>>>>
> >>>>>>>>> This is the function I wrote to determine what button to show on
> >> page
> >>>>>>>> load.
> >>>>>>>>> But regardless if someone has been friended or not, it shows the
> >> add
> >>>>>>>>> friend option. Is something wrong with this?
> >>>>>>>>>
> >>>>>>>>>
> >>>>>>>>> function friend_status($author_id) {
> >>>>>>>>> global $wpdb, $current_user;
> >>>>>>>>> get_currentuserinfo();
> >>>>>>>>>
> >>>>>>>>> //authorID is the userID of the profile owner
> >>>>>>>>>
> >>>>>>>>> $active_user = $current_user->ID;
> >>>>>>>>> $active_user_friends = get_user_meta($active_user, 'friends');
> >>>>>>>>>
> >>>>>>>>> if (in_array($author_id, $active_user_friends)) {
> >>>>>>>>> $friend_status = "<button id='remove_friend'>Remove
> >> Friend</button>";
> >>>>>>>>> } else {
> >>>>>>>>> $friend_status = "<button id='add_friend'>Add Friend</button>";
> >>>>>>>>> }
> >>>>>>>>>
> >>>>>>>>> return $friend_status;
> >>>>>>>>> }
> >>>>>>>>>
> >>>>>>>>> Then on page: echo $friend_status;
> >>>>>>>>>
> >>>>>>>>>
> >>>>>>>>> On Thu, Oct 31, 2013 at 11:53 AM, J.D. Grimes <
> jdg at codesymphony.co
> >>>
> >>>>>>>> wrote:
> >>>>>>>>>
> >>>>>>>>>> Yes, I would write a separate function for removal, and hook it
> >> to a
> >>>>>>>>>> different AJAX action for removal.
> >>>>>>>>>>
> >>>>>>>>>> On Oct 31, 2013, at 2:48 PM, Gregory Lancaster <
> >>>>>>>> greglancaster71 at gmail.com>
> >>>>>>>>>> wrote:
> >>>>>>>>>>
> >>>>>>>>>>> That works easier :) Once someone is friended I have it set so
> >> an
> >>>>>>>>>> unfriend
> >>>>>>>>>>> button replaces the add friend button via ajax. Is it
> necessary
> >> to
> >>>>>>>> write
> >>>>>>>>>>> another function for deleting a person? Not sure exactly how
> to
> >>>> make
> >>>>>>>> the
> >>>>>>>>>>> new button function since the data being sent is not attached
> to
> >>>> the
> >>>>>>>>>> button
> >>>>>>>>>>> in any way. maybe I could add a value to the button that says
> >>>> remove
> >>>>>>>> or
> >>>>>>>>>>> add, which would be passed to the function and determine what
> >>>> action
> >>>>>> to
> >>>>>>>>>>> take?
> >>>>>>>>>>>
> >>>>>>>>>>>
> >>>>>>>>>>> On Thu, Oct 31, 2013 at 11:32 AM, J.D. Grimes <
> >> jdg at codesymphony.co
> >>>>>
> >>>>>>>>>> wrote:
> >>>>>>>>>>>
> >>>>>>>>>>>> I would do this:
> >>>>>>>>>>>>
> >>>>>>>>>>>> $profileID = $_POST['profileID'];
> >>>>>>>>>>>>
> >>>>>>>>>>>> $chkMetaValue = get_user_meta($userID,"friends");
> >>>>>>>>>>>>
> >>>>>>>>>>>> if ( ! is_array($chkMetaValue) )
> >>>>>>>>>>>> $chkMetaValue = array();
> >>>>>>>>>>>>
> >>>>>>>>>>>> $chkMetaValue[] = $profileID; // or use array_push()
> >>>>>>>>>>>>
> >>>>>>>>>>>> update_user_meta( $userID, 'friends', $chkMetaValue );
> >>>>>>>>>>>>
> >>>>>>>>>>>> -J.D.
> >>>>>>>>>>>>
> >>>>>>>>>>>> On Oct 31, 2013, at 1:32 PM, BenderisGreat <
> >>>>>> greglancaster71 at gmail.com
> >>>>>>>>>
> >>>>>>>>>>>> wrote:
> >>>>>>>>>>>>
> >>>>>>>>>>>>> I am not sure exactly how this would work because I start
> with
> >> an
> >>>>>>>> empty
> >>>>>>>>>>>>> meta_value field. I dont think I can use array_push if there
> >> is
> >>>>>> not
> >>>>>>>> at
> >>>>>>>>>>>>> least one value in the field, correct?
> >>>>>>>>>>>>>
> >>>>>>>>>>>>> So maybe something like this:
> >>>>>>>>>>>>>
> >>>>>>>>>>>>> $profileID = $_POST['profileID'];
> >>>>>>>>>>>>>
> >>>>>>>>>>>>> $chkMetaValue = get_user_meta($userID,"friends");
> >>>>>>>>>>>>> if (!empty($chkMetaValue))
> >>>>>>>>>>>>> {
> >>>>>>>>>>>>> array_push($profileID);
> >>>>>>>>>>>>> } else {
> >>>>>>>>>>>>> $profileID;
> >>>>>>>>>>>>> }
> >>>>>>>>>>>>>
> >>>>>>>>>>>>> update_user_meta( $userID, 'friends', $chkMetaValue );
> >>>>>>>>>>>>>
> >>>>>>>>>>>>> Is that right?
> >>>>>>>>>>>>>
> >>>>>>>>>>>>>
> >>>>>>>>>>>>>
> >>>>>>>>>>>>>
> >>>>>>>>>>>>> --
> >>>>>>>>>>>>> View this message in context:
> >>>>>>>>>>>>
> >>>>>>>>>>
> >>>>>>>>
> >>>>>>
> >>>>
> >>
> http://wordpress-hackers.1065353.n5.nabble.com/array-push-on-update-user-meta-tp42688.html
> >>>>>>>>>>>>> Sent from the Wordpress Hackers mailing list archive at
> >>>> Nabble.com.
> >>>>>>>>>>>>> _______________________________________________
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