WordPress.org

1. imjscn
   Member
   Posted 1 year ago #

   I made a plugin that takes value from input box and calculate results.
   (Note: the plugin's job is done during the porcess of post creating)

   I have the input box setup as post meta-box, so, I get the input value as post meta.

   When there's an input, the plugin will do calculation.

   Now I need to save the calculated results into the post meta.
   According to this code:
   add_post_meta($post_id, $meta_key, $meta_value, $unique);
   I will need $post_id.

   The problem is-- when the post is not saved yet, is there a $post_id ?
   If there is, how can I get it?

   Another question--
   In BuddyPress, we have $bp->slug->var to express values. In WordPress, how to set up some variables like this?

   Thanks in advance for your time!

   Regards

2. imjscn
   Member
   Posted 1 year ago #

   Here's a summary of my codes:
   

   Class Math{
   var: $id; //I want to map this id to post_id
   var: $a;
   var: $b;
   var: $c;
   
   function calculate{
    $this->a = $value_from_post_meta_input_box;
    $this->b = $data_generated_in_calculating_process;
    $this->c = $result_of_some_function;
   }
   }

   After active the plugin, and setup the post meta input box for $a, I am able to get $a saved in post meta.
   Now, how can I save $b and $c ? How to say the current calculation is an instance of Math with current post_ID ?

Topic Closed

This topic has been closed to new replies.