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Add 'years'

Anna Schumaker 2023-03-22 16:12:54 -04:00
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The `years` table holds information for year playlists.
### Columns
| Name | Type | Description |
| --------------------------------- | ------- | ----------------------------------- |
| year | INTEGER | The year |
| [propertyid](playlist_properties) | INTEGER | The rowid of this year's properties |
### Triggers
| Name | When | Description |
| -------------------- | ------------ | ------------------------------------------------------------- |
| years_insert_trigger | After insert | Create a new row in the [[playlist_properties]] table |
| years_delete_trigger | After delete | Delete this year's entry in the [[playlist_properties]] table |
### The `years_view`
The `years_view` joins the `years` table with the [[playlist_properties]] table so the application can use one query to access all the relevant state for each year.
| Column | Description |
| --------------------------------- | ------------------------------------------------------ |
| year | The year |
| [propertyid](playlist_properties) | The rowid of the [[playlist_properties]] for this year |
| name | The year formatted as a string |
| [active](playlist_properties) | The active state of this year |