lib.itmens/doc/catalog.md

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Catalog
=======
Data Models
-----------
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all types of catalog items inherits from `Item` which stores as multi-table django model.
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one `Item` may have multiple `ExternalResource`s, each represents one page on an external site
```mermaid
classDiagram
class Item {
<<abstract>>
}
Item <|-- Album
class Album {
+String barcode
+String Douban_ID
+String Spotify_ID
}
Item <|-- Game
class Game {
+String Steam_ID
}
Item <|-- Podcast
class Podcast {
+String feed_url
+String Apple_ID
}
Item <|-- Performance
Item <|-- Work
class Work {
+String Douban_Work_ID
+String Goodreads_Work_ID
}
Item <|-- Edition
Item <|-- Series
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Series *-- Work
Work *-- Edition
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class Series {
+String Goodreads_Series_ID
}
class Work {
+String Douban_ID
+String Goodreads_ID
}
class Edition{
+String ISBN
+String Douban_ID
+String Goodreads_ID
+String GoogleBooks_ID
}
Item <|-- Movie
Item <|-- TVShow
Item <|-- TVSeason
Item <|-- TVEpisode
TVShow *-- TVSeason
TVSeason *-- TVEpisode
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class TVShow{
+String IMDB_ID
+String TMDB_ID
}
class TVSeason{
+String Douban_ID
+String TMDB_ID
}
class TVEpisode{
+String IMDB_ID
+String TMDB_ID
}
class Movie{
+String Douban_ID
+String IMDB_ID
+String TMDB_ID
}
Item <|-- Collection
ExternalResource --* Item
class ExternalResource {
+enum site
+url: string
}
```
Add a new site
--------------
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> **Site official API** should be the prioritised way to get data when adding a new site.
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- add a new value to `IdType` and `SiteName` in `catalog/common/models.py`
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- add a new file in `catalog/sites/`, a new class inherits `AbstractSite`, with:
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* `SITE_NAME`
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* `ID_TYPE`
* `URL_PATTERNS`
* `WIKI_PROPERTY_ID` (not used now)
* `DEFAULT_MODEL` (unless specified in `scrape()` return val)
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* a classmethod `id_to_url()`
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* a method `scrape()` returns a `ResourceContent` object
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* `BasicDownloader()` is used to download website content or API data. e.g. `content = BasicDownloader(url).download().html()`
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* ...
see existing files in `catalog/sites/` for more examples
- add an import in `catalog/sites/__init__.py`
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- add some tests to `catalog/<folder>/tests.py` according to site type
+ add `DOWNLOADER_SAVEDIR = '/tmp'` to `settings.py` can save all response to /tmp
+ run `python3 manage.py cat <url>` for debugging or saving response file to `/tmp`. Detailed code of `cat` is in `catalog/management/commands/cat.py`
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+ move captured response file to `test_data/`, except large/images files. Or if have to, use a smallest version (e.g. 1x1 pixel / 1s audio)
+ add `@use_local_response` decorator to test methods that should pick up these responses
- run all the tests and make sure they pass
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- Command: `python3 manage.py test [--keepdb]`. More detailed for `test`, please check [this doc](https://github.com/neodb-social/neodb/blob/main/doc/development.md#run-test)
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- Errors from previous codes can be ignored. Like `lxml.etree.ParserError`
- add a site UI label to `common/static/scss/_sitelabel.scss`