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Andreas Preikschat
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openlp.org 2.x Song Database Structure
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========================================================================
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Introduction
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------------
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The song database in openlp.org 2.x is similar to the 1.x format. The
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biggest differences are the addition of extra tables, and the use of
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SQLite version 3.
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The song database contains the following tables:
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- authors
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- authors_songs
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- song_books
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- songs
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- songs_topics
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- topics
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"authors" Table
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---------------
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This table holds the names of all the authors. It has the following
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columns:
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* id
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* first_name
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* last_name
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* display_name
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"authors_songs" Table
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---------------------
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This is a bridging table between the "authors" and "songs" tables, which
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serves to create a many-to-many relationship between the two tables. It
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has the following columns:
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* author_id
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* song_id
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"song_books" Table
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------------------
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The "song_books" table holds a list of books that a congregation gets
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their songs from, or old hymnals now no longer used. This table has the
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following columns:
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* id
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* name
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* publisher
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"songs" Table
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-------------
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This table contains the songs, and each song has a list of attributes.
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The "songs" table has the following columns:
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* id
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* song_book_id
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* title
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* lyrics
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* verse_order
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* copyright
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* comments
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* ccli_number
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* song_number
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* theme_name
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* search_title
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* search_lyrics
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"songs_topics" Table
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--------------------
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This is a bridging table between the "songs" and "topics" tables, which
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serves to create a many-to-many relationship between the two tables. It
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has the following columns:
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* song_id
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* topic_id
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"topics" Table
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--------------
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The topics table holds a selection of topics that songs can cover. This
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is useful when a worship leader wants to select songs with a certain
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theme. This table has the following columns:
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* id
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* name
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The lyrics definition (more or less similar to interformat to/from ChangingSong
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The tags <i></i><b></b><u></u> can also be used within the lyrics test.
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! Please note that this format has been checked at http://validator.w3.org/#validate_by_upload
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<lyrics lang="en_US">
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<title>Amazing Grace</title>
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<verse name="v1">
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<theme>name of verse specific theme (optional)</theme>
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<comment>any text (optional)</comment>
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<part name="men">
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Amazing grace, how ...
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</part>
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<part name="women">
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A b c
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D e f
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</part>
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...
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</verse>
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<verse name="c">
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<theme>name of verse specific theme (optional)</theme>
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<comment>any text (optional)</comment>
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...
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</verse>
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</lyrics>
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<lyrics lang="de_DE">
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<title>Erstaunliche Anmut</title>
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<verse name="v1">
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Erstaunliche Anmut, wie
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...
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</verse>
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<verse name="c">
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...
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</verse>
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</lyrics>
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@ -71,6 +71,104 @@ def init_schema(url):
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``url``
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``url``
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The database to setup
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The database to setup
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The song database is structured as follows::
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The song database contains the following tables:
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* authors
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* authors_songs
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* media_files
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* media_files_songs
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* song_books
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* songs
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* songs_topics
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* topics
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"authors" Table
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---------------
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This table holds the names of all the authors. It has the following
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columns:
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* id
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* first_name
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* last_name
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* display_name
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"authors_songs" Table
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---------------------
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This is a bridging table between the "authors" and "songs" tables, which
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serves to create a many-to-many relationship between the two tables. It
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has the following columns:
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* author_id
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* song_id
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"media_files" Table
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-------------------
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* id
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* file_name
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* type
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"media_files_songs" Table
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-------------------------
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* media_file_id
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* song_id
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"song_books" Table
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------------------
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The "song_books" table holds a list of books that a congregation gets
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their songs from, or old hymnals now no longer used. This table has the
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following columns:
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* id
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* name
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* publisher
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"songs" Table
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-------------
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This table contains the songs, and each song has a list of attributes.
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The "songs" table has the following columns:
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* id
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* song_book_id
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* title
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* alternate_title
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* lyrics
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* verse_order
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* copyright
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* comments
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* ccli_number
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* song_number
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* theme_name
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* search_title
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* search_lyrics
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"songs_topics" Table
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--------------------
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This is a bridging table between the "songs" and "topics" tables, which
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serves to create a many-to-many relationship between the two tables. It
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has the following columns:
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* song_id
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* topic_id
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"topics" Table
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--------------
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The topics table holds a selection of topics that songs can cover. This
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is useful when a worship leader wants to select songs with a certain
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theme. This table has the following columns:
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* id
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* name
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"""
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"""
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session, metadata = init_db(url)
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session, metadata = init_db(url)
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@ -181,4 +279,4 @@ def init_schema(url):
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mapper(Topic, topics_table)
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mapper(Topic, topics_table)
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metadata.create_all(checkfirst=True)
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metadata.create_all(checkfirst=True)
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return session
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return session
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