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Improve merge database import method and remove append method
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JonnyWong16
parent
e698bcb375
commit
a5653e365e
4 changed files with 52 additions and 24 deletions
2
API.md
2
API.md
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@ -2561,7 +2561,7 @@ Import a Tautulli, PlexWatch, or Plexivity database into Tautulli.
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Required parameters:
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app (str): "tautulli" or "plexwatch" or "plexivity"
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database_path (str): The full path to the plexwatch database file
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method (str): For Tautulli only, "merge" or "append" or "overwrite"
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method (str): For Tautulli only, "merge" or "overwrite"
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table_name (str): For PlexWatch or Plexivity only, "processed" or "grouped"
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@ -5,6 +5,7 @@
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<h4 class="modal-title">Import ${app} Database</h4>
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</div>
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<div class="modal-body" id="modal-text">
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<input type="hidden" id="import_app" name="import_app" value="${app.lower()}" />
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% if app in ('PlexWatch', 'Plexivity'):
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<p class="help-block">
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<%
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@ -33,23 +34,20 @@
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<div class="col-xs-4">
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<select class="form-control" id="import_method" name="import_method">
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<option value="merge">Merge</option>
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<option value="append">Append</option>
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<option value="overwrite">Oerwrite</option>
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</select>
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</div>
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</div>
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<p class="help-block">Select how you would like to import the Tautulli history.</p>
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<ul class="help-block" style="padding-inline-start: 15px;">
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<li><strong>Merge</strong> will only add missing history from the imported database into the current database.</li>
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<li><strong>Append</strong> will add all history from the imported database into the current database.
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<br>Note: History will be duplicated if it is present in both databases.</li>
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<li><strong>Merge</strong> will add all history and remove any duplicates from the imported database into the current database.</li>
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<li><strong>Overwrite</strong> will replace all history in the current database with the imported database.</li>
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</ul>
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<p class="help-block">Note: Other settings such as notification and newsletter agents will also be imported.</p>
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<p class="help-block">Note: Libraries, users, notification agents, newsletter agents, and registered mobile devices will also be imported</p>
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</div>
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<div class="checkbox">
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<label>
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<input type="checkbox" name="import_backup_db" id="import_backup_db" value="1" checked> Backup Database
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<input type="checkbox" name="import_backup_db" id="import_backup_db" value="1" checked> Backup Current Database
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</label>
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<p class="help-block">Automatically create a backup of the current database before importing.</p>
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</div>
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@ -88,6 +86,7 @@
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<script>
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// Send database path to import script
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$("#import_db").click(function() {
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var import_app = $("#import_app").val();
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var database_path = $("#import_database_path").val();
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var import_method = $("#import_method").val();
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var import_backup_db = $("#import_backup_db").is(':checked');
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@ -96,7 +95,7 @@
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$.ajax({
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url: 'import_database',
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data: {
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app: "${app}",
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app: import_app,
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database_path: database_path,
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method: import_method,
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backup: import_backup_db,
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@ -58,31 +58,38 @@ def import_tautulli_db(database=None, method=None, backup=True):
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logger.error("Tautulli Database :: Failed to import Tautulli database: %s", db_validate)
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return False
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if method not in ('merge', 'append', 'overwrite'):
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if method not in ('merge', 'overwrite'):
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logger.error("Tautulli Database :: Failed to import Tautulli database: invalid import method '%s'", method)
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return False
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# Make a backup of the current database first
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if backup:
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# Make a backup of the current database first
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logger.info("Tautulli Database :: Creating a database backup before importing.")
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if not make_backup():
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logger.error("Tautulli Database :: Failed to import Tautulli database: failed to create database backup")
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return False
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logger.info("Tautulli Database :: Tautulli database import started with method '%s'...", method)
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logger.info("Tautulli Database :: Importing Tautulli database '%s' with import method '%s'...", database, method)
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db = MonitorDatabase()
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db.connection.execute('BEGIN IMMEDIATE')
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db.connection.execute('ATTACH ? AS import_db', [database])
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# Get the current number of used ids in the session_history table
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session_history_seq = db.select_single('SELECT seq FROM sqlite_sequence WHERE name = "session_history"')
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if method == 'merge':
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# Create a temporary table so we can reindex session_history.reference_id after merging
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if method == 'append':
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logger.info("Tautulli Database :: Creating temporary database table to re-index grouped session history.")
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session_history_seq = db.select_single('SELECT seq FROM sqlite_sequence WHERE name = "session_history" ')
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db.action('CREATE TABLE IF NOT EXISTS temp (id INTEGER PRIMARY KEY, old_id, new_id)')
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db.action('INSERT INTO temp (old_id) SELECT id FROM import_db.session_history')
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db.action('UPDATE temp SET new_id = id + ?', [session_history_seq['seq']])
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# Keep track of all table columns so that duplicates can be removed after importing
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session_history_tables = ('session_history', 'session_history_metadata', 'session_history_media_info')
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session_history_columns = []
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table_columns = {}
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tables = db.select('SELECT name FROM import_db.sqlite_master '
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'WHERE type = "table" AND name NOT LIKE "sqlite_%"')
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for table in tables:
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@ -91,28 +98,50 @@ def import_tautulli_db(database=None, method=None, backup=True):
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# Skip temporary sessions table
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continue
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logger.info("Tautulli Database :: Importing database table '%s'", table_name)
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logger.info("Tautulli Database :: Importing database table '%s'.", table_name)
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if method == 'overwrite':
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# Clear the table and reset the autoincrement ids
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db.action('DELETE FROM {table}'.format(table=table_name))
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db.action('DELETE FROM sqlite_sequence WHERE name = ?', [table_name])
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# Get the list of columns to import
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columns = db.select('PRAGMA import_db.table_info({table})'.format(table=table_name))
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if method == 'merge':
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import_columns = [c['name'] for c in columns]
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else:
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import_columns = [c['name'] for c in columns if not c['pk']]
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insert_columns = ', '.join(import_columns)
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table_columns[table_name] = insert_columns
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if table == 'session_history':
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session_history_columns = import_columns
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# Insert the data with ignore instead of replace to be safe
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db.action('INSERT OR IGNORE INTO {table} ({columns}) '
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'SELECT {columns} FROM import_db.{table}'.format(table=table_name, columns=insert_columns))
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# Reindex session_history.reference_id and delete the temp table
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if method == 'append':
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db.connection.execute('DETACH import_db')
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if method == 'merge':
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# Reindex session_history.reference_id
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logger.info("Tautulli Database :: Re-indexing grouped session history.")
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db.action('UPDATE session_history SET reference_id = (SELECT new_id FROM temp WHERE old_id = reference_id)'
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'WHERE id > ?', [session_history_seq['seq']])
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if session_history_columns:
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# Remove reference_id column from the list of session_history table columns to get unique rows
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columns = ', '.join([c for c in session_history_columns if c != 'reference_id'])
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# Remove session_history ids to KEEP from the temp table
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db.action('DELETE FROM temp WHERE new_id IN ('
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'SELECT MIN(id) FROM session_history '
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'GROUP BY {columns})'.format(columns=columns))
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for table, columns in table_columns.items():
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logger.info("Tautulli Database :: Removing duplicate rows from database table '%s'.", table)
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if table in session_history_tables:
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db.action('DELETE FROM {table} WHERE id IN (SELECT new_id FROM temp)'.format(table=table))
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else:
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db.action('DELETE FROM {table} WHERE id NOT IN '
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'(SELECT MIN(id) FROM {table} GROUP BY {columns})'.format(table=table, columns=columns))
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logger.info("Tautulli Database :: Deleting temporary database table.")
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db.action('DROP TABLE temp')
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@ -3748,7 +3748,7 @@ class WebInterface(object):
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Required parameters:
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app (str): "tautulli" or "plexwatch" or "plexivity"
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database_path (str): The full path to the plexwatch database file
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method (str): For Tautulli only, "merge" or "append" or "overwrite"
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method (str): For Tautulli only, "merge" or "overwrite"
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table_name (str): For PlexWatch or Plexivity only, "processed" or "grouped"
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