A new table tx_savlibraryexample4_friends was created with four fields: friend_name, friend_phone, friend_email as string inputs and friend_preferred_music as a database relation. In this example, it is clear that your friends are not associated with one CD. They should be in the table but with no relation with the CD item. We need a new input in the table tx_savlibraryexample4_cds, such that you will be able to add your friends in an element browser as shown in Example 3, but without creating a relation field in the table .
This is done by selecting Just create the Element Browser (no relation) as shown in the caption below.
As we want to select only our friends, a where clause is added to the field which will select the records. They must have the correct cruser_id in the tx_savlibraryexample4_friends table.
Let us assume that we want to select our friend’s preferred music styles from a double-window selector. Since our friends may have several preferred styles, we have to build a MM relation. In this example, we have chosen to use a non-true MM relation, that is no MM table is built and, instead, TYPO3 uses a comma-separated list. If you prefer to use a true MM relation just select the checkbox.