[horde] Sorting Emails
Michael J Rubinsky
mrubinsk at horde.org
Thu Feb 9 16:03:57 UTC 2017
Quoting Mike Poznecki <poz_sa at yahoo.com>:
> I want to sort my email by a field that is different than what is
> allowed. According to the php website:
PHP's documentation of for PHP's imap extension. This is an
*extremely* inefficient imap client that is basically a wrapper around
the old and outdated c-client library. Horde has written it's own imap
client library that takes advantage of features of modern IMAP servers
that are more suited for the web-mail use case.
> Criteria can be one (and only one) of the following:
> - SORTDATE - message Date
> - SORTARRIVAL - arrival date
> - SORTFROM - mailbox in first From address
> - SORTSUBJECT - message subject
> - SORTTO - mailbox in first To address
> - SORTCC - mailbox in first cc address
> - SORTSIZE - size of message in octets
See the phpdoc for Horde_Imap_Client_Base::search() for a list of sort
criteria supported by the IMAP protocol.
> But I would like to sort by a different field. So my questions are these:
> 1. When the emails are read from the server, are they cached in a
> place that I can then sort?
Sorting takes place on the IMAP server before the results are
transmitted to Horde whenever possible. Depending on the sort criteria
requested, this *may* fallback to client side sorting of the requested
field if the IMAP server does not support the required extension. See
> If so, are all emails brought back and cached? If so, where in the
> code can I look to find where to start making my changes?
> 2. Is there some other way to implement a sort when calling the IMAP server?
If your desired sort field is not one of those listed in
Horde_Imap_Client_Base::search(), then you will have to hack the code,
adding the necessary logic in all of the places (and possibly more)
> 3. Why does Horde pass in "DISPLAYFROM"? I cannot find anywhere in
> the IMAP docs that references that.
See answer above. This is one of the supported fields.
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