src.data_interface package

Submodules

src.data_interface.cache module

class src.data_interface.cache.Cache

Bases: object

append(key, value)

Append to a redis list

Parameters:

• key (str) – cache key
• value (str) – object to store in cache

get(key, start=None, end=None)

Get an object from cache by its key

Parameters:

• key (str) – cache key
• start (int) – when querying a redis list, starting range of the list.
• end (int) – when querying a redis list, ending range of the list.

Returns:

cached object

Return type:

str

set(key, value)

Set an object in cache by its key

Parameters:

• key (str) – cache key
• value (str) – object to store in cache

src.data_interface.downloader module

This module contains wrappers to download various movies datasets. So far we are only using Movielens but we can add more if we want.

Every dataset should have its wrapper class that inherits from Downloader.

class src.data_interface.downloader.Downloader

Bases: abc.ABC

download_to_file()

insert_in_db()

item_from_api(id)

read_api_key(key_filepath)

class src.data_interface.downloader.MovielensDownloader

Bases: src.data_interface.downloader.Downloader

download_to_file()

insert_in_db()

src.data_interface.model module

class src.data_interface.model.BaseTable(**kwargs)

Bases: sqlalchemy.ext.declarative.api.Model

created_at = Column(None, DateTime(), table=None, nullable=False, default=ColumnDefault(<function datetime.utcnow>))

id = Column(None, Integer(), table=None, primary_key=True, nullable=False)

updated_at = Column(None, DateTime(), table=None, onupdate=ColumnDefault(<function datetime.utcnow>), default=ColumnDefault(<function datetime.utcnow>))

class src.data_interface.model.Engine(**kwargs)

Bases: src.data_interface.model.BaseTable

created_at

display_name

id

priority

type

updated_at

class src.data_interface.model.Genre(**kwargs)

Bases: src.data_interface.model.BaseTable

created_at

id

name

updated_at

class src.data_interface.model.Movie(**kwargs)

Bases: src.data_interface.model.BaseTable

actors

as_dict()

awards

country

created_at

description

director

duration

genres

id

image

language

name

rating

updated_at

year

class src.data_interface.model.Page(**kwargs)

Bases: src.data_interface.model.BaseTable

created_at

engines

id

name

updated_at

class src.data_interface.model.Recommendation(**kwargs)

Bases: src.data_interface.model.BaseTable

created_at

engine_name

id

recommended_item_id

score

source_item_id

source_item_id_kind

updated_at

class src.data_interface.model.User(**kwargs)

Bases: src.data_interface.model.BaseTable

created_at

email

favorite_genres

id

password

updated_at

username

src.data_interface.model.init()

src.data_interface.model.insert(to_insert)

src.data_interface.model.truncate_table(table)