How to email individual content to email field?

Question

I have a content type that contains information about people, if these people want this information forwarded to them, I'd like to be able to capture an email in an email field and send the published content to them in an email.

I've been hunting around for a way to do this but can't find anything. Is there a way to do this?

Answer 1

If you're looking for existing module to base a solution on. The Print module has a Send by email submodule that supplies a form (/printmail/node/NID) that you can tweak for sending out emails and capturing the supplied emails.

/**
 * Implements hook_form_print_mail_form_alter().
 */
function MYMODULE_form_print_mail_form_alter(&$form, &$form_state, $form_id) {
  // Add a custom submission handler for your functionality.
  $form['#submit'][] = 'MYMODULE_form_print_mail_form_submit';
}

function MYMODULE_form_print_mail_form_submit($form, &$form_state) {
  // @TODO: process $form_state['values']['txt_to']['addrs'] for email addresses to store.
  // Use $form_state['values']['path'] to the load relevant node & save data to its fields.
}

Answer 2

Below is a sample of a rule (in Rules export format) that will send an eMail "After updating existing content" , and which is similar to what is asked in the question:

{ "rules_notify_author_of_selected_field_updates" : {
    "LABEL" : "Notify author of selected field updates",
    "PLUGIN" : "reaction rule",
    "OWNER" : "rules",
    "REQUIRES" : [ "rules" ],
    "ON" : { "node_update" : [] },
    "IF" : [
      { "entity_has_field" : { "entity" : [ "node" ], "field" : "field_optionlist" } },
      { "NOT data_is" : {
          "data" : [ "node-unchanged:field-optionlist" ],
          "value" : [ "node:field-optionlist" ]
        }
      }
    ],
    "DO" : [
      { "mail" : {
          "to" : "[site:current-user:mail]",
          "subject" : "Notification about a node with a special field value",
          "message" : "Go checkout the node with nid [node:nid] and title [node:title]: it has a field with a value (which is [node:field-optionlist]) you asked to be informed about ..."
        }
      }
    ]
  }
}

Some more details to further explain the above above sample:

• In my case I have a selection list field with machine name field_optionlist, and a few possible values.
• The Rules Condition checks if the "The selected value changed". You may want to adapt and/or extend this condition to something like "some eMail field is not blank".
• If the Rules Condition is true, then (as Rules Action), an eMail will be triggered to the editing user.

Change the field name of field_optionlist to match the field name of your content type, and adapt the actual eMail details (subject, etc) to fit your needs. Then import it in your own site (using the Rules UI). That's it.

PS: If you want to send such eMails to somebody who is not logged in, just change the "to" value to the eMail ID specified in your eMail field in the node. However (red flag!): I would not recommend you to allow this feature for anonymous users. Because spammers would love it: they would only have to edit such nodes, and then type any eMail Id they want to the content of your node to be spammed about ... not a good idea, right?