[mythtv-users] Bug related to ignoring the and a in title ordering

[Hika van den Hoven]

Hoi Hika,

Monday, March 20, 2023, 1:48:04 AM, you wrote:

> Hoi Hika,

> Monday, March 20, 2023, 1:17:45 AM, you wrote:

>> Hoi David,

>> Sunday, March 19, 2023, 9:00:09 PM, you wrote:

<snip>

>>>> > David
>>>> 
>>>> > * That label needs to be updated to "Ignore Prefixes when Sorting".
>>>> > The
>>>> > description also needs to be updated.
>>>> 
>>>> Thanks.
>>>> Either that option was added after 0.27 or it is not present in
>>>> MythCenter-wide. On the indicated page I only have "Use line edit
>>>> virtual keyboard" and "Screen shot path"

>>> You're right. I just checked this morning and my rework of the sorting
>>> code went into 0.30.

>>> I've been looking at the patch from 2017 that changed sorting, I don't
>>> see any removed option related to sorting, only the added one I
>>> mentioned before. I don't think you could disable the prefix ignoring
>>> code before 0.30.

>>> I also started digging into the code and I've found the problem.  Its a
>>> little complicated though.  When creating the Watched Recordings page:

>>> 1) Each entry in the group list has a sorting name and a display name.
>>> For your listings this might be a sort name of "Dark Horse" and a
>>> display name of "The Dark Horse".

>>> 2) The group list enforces unique sort names.

>>> 3) Recordings are added to a group based upon their sort name.

>>> 4) The "List Recorded Episodes" action looks up the title of the
>>> currently selected program in the group list based on its display name,
>>> and switches to that group.

>>> Putting these things together, here's what happens. When the watch
>>> recordings page is created, because "Dark Horse" and "The Dark Horse"
>>> have the same sortable title only one entry gets created in the group
>>> list. Whether the display name for that group is "Dark Horse" or "The
>>> Dark Horse" depends upon the order that the programs were returned from
>>> the database. Lets assume that the display name is set to "The Dark
>>> Horse". When you go into "All Programs" group and choose a program
>>> named "The Dark Horse" and select "List Recorded Episodes", the name is
>>> successfully looked up in the group list and MythTV will switch to that
>>> group.  If, however, you  choose a program named "Dark Horse" and
>>> selected "List Recorded Episodes", that name cannot be found in the
>>> group list (because the display name there is the "The Dark Horse") so
>>> the display doesn't switch.

>>> I can recreate this problem in the latest code. Disabling the "Remove
>>> Prefixes when Sorting" option solves the problem in the latest code. In
>>> this function in 0.27 however, stripping the article prefixes when
>>> creating the sort names is hard coded and can't be disabled.

>>> I'm filing an issue report now to fix this in the latest code.

>>> David

>> Great you found it! Thanks, although it presently does not help me.
>> What you found is what I guessed. A mix up of the two title versions.
>> A common cause for unexpected behavior.
>> As said I will rename the series to the original Scandinavian title.

>> Tot mails,
>>   Hika                            mailto:hikavdh at gmail.com

> The solution as I see it, but I don't do C only Python, is to always
> use the display title as identity tag. In Python you can sort on the
> base of an associated value that does not need to be unique. It's
> called a lambda

On further thinking you even better use the seriesid/movieid as
identity tag with, for instance "S" and "M", added. This way you
distinguish between those too.


Tot mails,
  Hika                            mailto:hikavdh at gmail.com

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Zonder leven is er geen hoop
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