php - insert into with 2 joins? -

i have 1 table auction_activity_notifications need insert id users table , column item_watch , need join email_templates table , need insert auction_activity_notifications

i make query inserting id of user , item_watch column , need join email_templates , insert id email_templates auction_activity_notifications

insert auction_activity_notifications (id_user, id_target) select id, item_watch  users u left join auction_activity_notifications aa   on u.id = aa.id_user     , u.item_watch=aa.id_target 

i have these columns in auction_activity_notifications

and in end need insert current date created_date_time

id_email_templates, id_user , id_target , created_date_time

add 1 more join in query

insert auction_activity_notifications (id_email_templates,id_user, id_target,created_date_time) select et.id,u.id, u.item_watch ,now() users u left join auction_activity_notifications aa  on u.id = aa.id_user     left join email_templates et on (aa.id_email_templates=et.id) , u.item_watch=aa.id_target 

note use table aliases column names when columns same in joined tables protects ambiguous condition columns

for current datetime can use datatype timestamp , set table column default value setting current_timestamp , remove now() select , created_date_time insert , automatically add current timestamp when , record inserted

alter table `table` change `created_date_time` `created_date_time` timestamp default current_timestamp not null;