通过SQL Laravel更新多行的多个表

I have a MySQL database setup like so:

• Events table (with an ID primary key)
• Line Items (with lineItemID primary key, eventID foreign key)
• GivenLineItemFunds (with lineItemId Primary&foreign key)

When an admin is reviewing a submitted event, he/she sees this:

An admin will enter in "funds given," for each row and then submit. Right now I have the system setup as a paginated system, but I may switch to having all the tables/'events' on one page.

How should I setup my form to take the LineItemID value for each row and submit it with the fundsGiven field to the database? Should I be doing this via Ajax? Am I just over complicating this?

When building the form, I would just set the name attribute of the <input> to the lineItemID (or 'item' . lineItemID)

{{ Form::text($lineItem->name, null, array(
  'name' => 'item' . $lineItem->lineItemId
)) }}