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Templates

Collections often share a lot of common [or generalizable] configuration details. Templates allow you to define these details so they can be used across multiple collections.

For example, an actor collection might look like this:

collections:
  Bruce Lee:
    plex_search:
      all:
        actor: tmdb
    tmdb_person: 19429
    sort_title: !_Bruce Lee
    sync_mode: sync
    collection_order: release

Then you add another:

collections:
  Bruce Lee:
    plex_search:
      all:
        actor: tmdb
    tmdb_person: 19429
    sort_title: !_Bruce Lee
    sync_mode: sync
    collection_order: release
  Chris Pratt:
    plex_search:
      all:
        actor: tmdb
    tmdb_person: 73457
    sort_title: !_Chris Pratt
    sync_mode: sync
    collection_order: release

You could keep going in this way, but there's a lot of repetition there. Both of these collections have the same sync_mode, collection_order, and actor settings; the other two details, tmdb_person and sort_title, depend on a value defined in the collection.

Those repetitive aspects can be moved into a template and leveraged by multiple collections.

Template Variables

Template Variables are used to define the data that going to be changing in the template.

For example, a template for those two collections might look like this:

templates:
  Actor:
    plex_search:
      all:
        actor: tmdb
    tmdb_person: <<person>>
    sort_title: !_<<collection_name>>
    sync_mode: sync
    collection_order: release

The only things that change are the ID that is used with tmdb_person and the name of the collection that is used in sort_title.

Those two things surrounded by << >> are "template variables" that you can define for any collection using this template, like this:

collections:
  Chris Pratt:
    template:
      name: Actor
      person: 73457

or to do it in a single line you can do this

collections:
  Bruce Lee:
    template: {name: Actor, person: 19429}

Note that we provide the template name Actor and the value to insert in the place of <<person>>. The <<collection_name>> is a template variable that is always available and doesn't have to be called out like <<person>>.

Inside a template, you can use all the Builders, Details, and Filters attributes that you can give collections/playlists [except template; templates cannot be nested].

The names of template variables that you define are arbitrary. In the example above, <<person>> could have been <<tvdb_person_id>> or <<bing>> or anything else. The only thing that matters is that in the template definition you surround them with << >> and in the collection definition you spell it correctly.

To use a template with a collection definition you use the template attribute. The only required attribute under template is name which must correspond exactly to the template mapping name. Any other attributes under template are considered template variables whose names correspond exactly with the template variable name surrounded by << and >> in the templates. These template variables will replace any part of any value that contains the template variable name surrounded by << and >> in the template with the specified template variable's value.

Here's the full example Actor template and two different ways to use it, as it would appear in a metadata file.

templates:
  Actor:
    plex_search:
      all:
        actor: tmdb
    tmdb_person: <<person>>
    sort_title: !_<<collection_name>>
    sync_mode: sync
    collection_order: release
collections:
  Bruce Lee:
    template: {name: Actor, person: 19429}
  Chris Pratt:
    template:
      name: Actor
      person: 73457

Multi-Template Variables

When using multiple Templates in a single definition you can send the same variable to all templates by using the variables attribute.

templates:
  Actor:
    plex_search:
      all:
        actor: tmdb
    tmdb_person: <<person>>
    sort_title: !_<<collection_name>>
  Common:
    summary: "Movies that <<collection_name>> (TMDb ID: <<person>>) are in"
    sync_mode: sync
    collection_order: release
collections:
  Bruce Lee:
    variables: {person: 19429}
    template: [{name: Actor}, {name: Common}]
  Chris Pratt:
    variables:
      person: 19429
    template:
     - name: Actor
     - name: Common

Special Template Attributes

There are some attributes unique to templates; default, optional, conditionals, and move_prefix.

default can set default values for template variables to be used if they're not specified in the call.
optional can specify variables that if not specified on the template call will cause any attribute using one of those variables to be ignored in the template. You can make any template variable optional per collection by setting it to null.
conditionals can specify variables based on conditions set by the user. See more here
move_prefix can be given a list or comma-separated string of prefixes to move to the end of the collection/playlist name for sorting. i.e. If you have move_prefix: The and a collection is called The Avengers then <<collection_name>> is replaced with Avengers, The instead of The Avengers for that collection.

Every template call is given these template variables.

Either <<collection_name>>, <<playlist_name>>, or <<overlay_name>> which is the name of the definition.
<<mapping_name>> is the original mapping name for the definition in the YAML file.
Either <<collection_sort>> or <<playlist_sort>> which is the name of the definition after move_prefix is applied.
<<library_type>> which is the library type
<<library_name>> which is the name of the library
All Template Variables can append _encoded to the variable name to use a URL encode version of the variable. ex. <<collection_name_encoded>>

Conditionals

Each conditional is identified by its mapping name and has one required attribute; conditions and one optional attribute; default.

default is the default value for the variable when no condition is met. If default is not specified the variable becomes an optional variable.

conditions is a list of sets of conditions where if all conditions are met then the variable will be the value specified in that condition.

Each set of conditions must have the value attribute which is the value of the variable if the condition is met.

All other attribute pairs in the set of conditions will check a variable of the attribute key and see if the variable is the attribute value or in the list of attribute values.

Here's an example from the PMM default ratings file.

templates:
  Rating:
    conditionals:
      rating1_horizontal_offset:
        default: 30             # If no condition sets below are meet
        conditions:
          - side: [top, bottom]
            rating2: none
            rating3: none
            value: 0            # If side is 'top' or 'bottom' and rating2 is 'none' and rating3 is 'none'
          - side: [top, bottom]
            rating2: none
            value: -165         # If side is 'top' or 'bottom' and rating2 is 'none' and no previous conditions are meet
          - side: [top, bottom]
            rating3: none
            value: -165         # If side is 'top' or 'bottom' rating3 is 'none' and no previous conditions are meet
          - side: [top, bottom]
            value: -335         # If side is 'top' or 'bottom' and no previous conditions are meet

Advance Example

Here's an example IMDb Genre template and two different ways to call it.

templates:
  IMDb Genre:
    default:
      title: feature
      limit: 100
    optional:
      - poster_id
    imdb_list:
    - url: https://www.imdb.com/search/title/?title_type=<<title>>&release_date=1990-01-01,&user_rating=5.0,10.0&num_votes=100000,&genres=<<genre>>
      limit: <<limit>>
    - url: https://www.imdb.com/search/title/?title_type=<<title>>&release_date=1990-01-01,&user_rating=5.0,10.0&num_votes=100000,&genres=<<genre>>&sort=user_rating,desc
      limit: <<limit>>
    sort_title: !_<<collection_name>>
    url_poster: https://theposterdb.com/api/assets/<<poster_id>>
    sync_mode: sync
    collection_order: alpha
collections:
  Action:
    template:
      name: IMDb Genre
      genre: action
    summary: Action film is a genre wherein physical action takes precedence in the storytelling. The film will often have continuous motion and action including physical stunts, chases, fights, battles, and races. The story usually revolves around a hero that has a goal, but is facing incredible odds to obtain it.
  Comedy:
    template: {name: IMDb Genre, genre: comedy, poster_id: 69200}
    summary: Comedy is a genre of film that uses humor as a driving force. The aim of a comedy film is to illicit laughter from the audience through entertaining stories and characters. Although the comedy film may take on some serious material, most have a happy ending. Comedy film has the tendency to become a hybrid sub-genre because humor can be incorporated into many other genres. Comedies are more likely than other films to fall back on the success and popularity of an individual star.
  Romantic Comedy:
    template: {name: IMDb Genre, genre: "romance,comedy", limit: 200}
    summary: Romantic Comedy is a genre that attempts to catch the viewer’s heart with the combination of love and humor. This sub-genre is light-hearted and usually places the two protagonists in humorus situation. Romantic-Comedy film revolves around a romantic ideal, such as true love. In the end, the ideal triumphs over the situation or obstacle, thus creating a happy ending.
    filters:
      genre: Comedy

Check out the example files in the Plex Meta Manager Configs Repository for more uses and examples.

External Templates

To load external templates located in another file you can use the external_templates attribute by specifying the path type and path of the files that will be executed. See Path Types for how to define them.

external_templates:
  - file: config/templates.yml       
  - pmm: templates

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