Drupal 7.x

I need to implement an invite/join module for a node (say, a forum).

Here is a flow:
1- The author of a node has a tab to choose a user and send invitation an invitation to that user to join a node.
2- The user receives a link to the view page of the node which is accessible to all users.
3- The user views the node view page, which has a join link.
4- The user clicks on the join link.
5- The author receives an email that a user has asked to join.
6- The author goes to a tab on the node that shows all the users that have asked to join.
7- The author accepts the join of the user.
8- The user is granted to edit the node.

The workflow is very typical, but I could not find the a module that implements this flow fully or even partially. Am I missing an existing module that provides this flow?

I have been struggling with following modules to implement the flow:

1-Flag module to let users bookmark the node. But from the description I could not find a way that after flagging a node, the author of the node gets notified and can see who has asked for joining and give them access grants (steps 5 to 7).

Hello,
I have a question about blocks in core version 7: where are the "random image block" and the "last poll block"?
Thanks

See my prior message "Help! All content from my pages is gone!".

I have the same content (but a bit dated) on my development site.

Would it be possible to transfer the defective pages? But I can't copy the entire database because the development site isn't current.

Suddenly all my pages are empty.

Except for the page, every page has the Title and, where allowed, a block to add a comment.
That's it.

All, or mostly all, of these are "Basic pages" with a Title and Body. It's the Body that's gone!

When I try to edit the page the body is gone as well.

The attached image shows one such page. As you can see, there is only a Title and an "Add new comment" section. Where is my body?

What happened? Can I get my content back? How?

Hi,

This page was very helpful to me for putting child terms in. It took me ages to find, so I put in the url here: http://stackoverflow.com/questions/6324509/drupal-on-term-page-show-chil....

How to get the grandparent of the parent please? Any idea using views 7?

Greetings, Martijn

I have a theme i will like to develop. It is already developed as a Photoshop file and needs to be converted to a drupal friendly theme.

Drupal 6 or 7.