Truxton relation set b id - Revision history

Sam: /* relation_handle */

2021-01-17T11:15:15Z

relation_handle

Sam at 11:05, 17 January 2021

2021-01-17T11:05:12Z

Sam: Created page with "This sets the B side of the relation in the sentence "A is a blank of B." This corresponds to the `[B_ID]` column of the the `[Relation Tabl..."`


2021-01-17T11:04:14Z
Created page with "This sets the B side of the relation in the sentence "A is a blank of B." This corresponds to the <code>[B_ID]</code> column of the the <code><nowiki>[</nowiki>Relation Tabl..."
New page
This sets the B side of the relation in the sentence "A is a blank of B."

This corresponds to the <code>[B_ID]</code> column of the the <code><nowiki>[</nowiki>[[Relation Table|Relation]]<nowiki>]</nowiki></code> table in the database.



=Syntax=

<source lang="C">

void truxton_relation_set_b_id(uint64_t relation_handle, char const * id);

</source>



=Parameters=

==<code>relation_handle</code>==

The relation object to free.

This handle comes from calling <code>[[truxton_relation_create]]()</code>.



==<code>id</code>==

The string representation of a [https://en.wikipedia.org/wiki/Universally_unique_identifier GUID.]



=Sample=

<source lang="C" line highlight="15">

void set_primary_photo( uint64_t truxton, uint64_t media, uint64_t child_file )

{

   char media_id[ 65 ];

   char file_id[ 65 ];

   

   truxton_media_get_id( media, media_id, sizeof( media_id ) );

   truxton_child_file_get_id( child_file, file_id, sizeof( file_id ) );



   uint64_t relation = truxton_relation_create( truxton );



   // Now tell Truxton that child_file (A object) is the primary photo of media (B object)

   truxton_relation_set_relation( relation, RELATION_PRIMARY_PHOTO );



   // Set the A object, A is a file

   truxton_relation_set_a_id( relation, file_id );

   truxton_relation_set_a_type( relation, OBJECT_TYPE_FILE );



   // Set the B object, B is a piece of media

   truxton_relation_set_b_id( relation, media_id );

   truxton_relation_set_b_type( relation, OBJECT_TYPE_MEDIA );



   // Set the source object, source is a piece of media

   truxton_relation_set_source_id( relation, media_id );

   truxton_relation_set_source_type( relation, OBJECT_TYPE_MEDIA );



   // Commit the data to the database

   truxton_relation_save( relation );

   truxton_relation_destroy( relation );

}

</source>

Truxton relation set b id - Revision history

Sam: /* relation_handle */

Sam at 11:05, 17 January 2021

Sam: Created page with "This sets the B side of the relation in the sentence "A is a blank of B." This corresponds to the [B_ID] column of the the [Relation Tabl..."

Sam: Created page with "This sets the B side of the relation in the sentence "A is a blank of B." This corresponds to the `[B_ID]` column of the the `[Relation Tabl..."`