Features Models in SailPilot
============================

The Features models in SailPilot's backend are central to the mapping and navigational features of the application. These models store and manage data related to navigational points of interest, attributes, and categorization.

AttributeGroups Model
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The `AttributeGroups` model categorizes different attributes that can be assigned to navigational points. It includes fields for names in different languages and a sort order.

- **Fields**: `name_en`, `name_el` for English and Greek names, and `sort_order`.
- **Database Table**: Uses a custom database table `attribute_groups`.

Attributes Model
----------------

The `Attributes` model represents specific attributes that can be associated with navigational points. It is linked to `AttributeGroups` for categorization purposes.

- **Fields**: Includes `attribute_group`, `code`, `name_en`, `name_el`, and `sort_order`.
- **Relation**: Has a foreign key relationship with the `AttributeGroups` model.
- **Database Table**: Uses a custom database table `attributes`.

TypeCategories Model
--------------------

The `TypeCategories` model organizes different types of navigational points into categories.

- **Fields**: `name_en`, `name_el` for English and Greek names, and `sort_order`.
- **Database Table**: Uses a custom database table `type_categories`.

FeatureTypes Model
------------------

The `FeatureTypes` model defines various types of navigational features, each associated with a category from `TypeCategories`.

- **Fields**: Includes `category`, `name_en`, `name_el`, `icon`, `is_base`, and `is_free`.
- **Relation**: Linked to `TypeCategories` via a foreign key.
- **Database Table**: Uses a custom database table `feature_types`.

TypeAttributeGroups Model
-------------------------

The `TypeAttributeGroups` model links `FeatureTypes` with `AttributeGroups`, defining which attributes are applicable to specific point types.

- **Relation**: Connects `FeatureTypes` and `AttributeGroups` via foreign keys.
- **Database Table**: Uses a custom database table `type_attribute_groups`.

Features Model
--------------

The `Features` model is key to storing navigational point data like coordinates and associated information.

- **Fields**: Includes `title`, `type`, geographical coordinates, and timestamps.
- **Relation**: Linked to `FeatureTypes` for categorizing points.
- **Database Table**: Uses a custom database table `features`.

FeatureTranslations Model
-------------------------

The `FeatureTranslations` model stores translations for navigational features, facilitating multilingual support.

- **Fields**: `feature`, `language`, and translations for various textual fields.
- **Relation**: Linked to `Features` via a foreign key.
- **Database Table**: Uses a custom database table `feature_translations`.

FeatureAttributes Model
-----------------------

The `FeatureAttributes` model associates specific attributes from `Attributes` with navigational features.

- **Relation**: Connects `Features` with `Attributes`.
- **Database Table**: Uses a custom database table `feature_attributes`.

FeatureLibraries Model
----------------------

The `FeatureLibraries` model manages the storage details for navigational features, including file paths and versioning.

- **Fields**: Includes `name`, `version`, `file_path`, and metadata about the stored data.
- **Database Table**: Uses a custom database table `feature_libraries`.

Indices and tables
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* :ref:`genindex`
* :ref:`modindex`
* :ref:`search`