Source code for tvb.interfaces.command.demos.datatypes.search_and_export

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Demo script on how to filter datatypes and later export them.

.. moduleauthor:: Lia Domide <>

import os
import shutil
from sys import argv
from datetime import datetime
from tvb.adapters.datatypes.db.connectivity import ConnectivityIndex
from tvb.adapters.datatypes.db.time_series import TimeSeriesRegionIndex
from tvb.core.entities.filters.chain import FilterChain
from import dao
from tvb.core.entities.transient.structure_entities import DataTypeMetaData
from tvb.core.neocom import h5

def _retrieve_entities_by_filters(kind, project_id, filters):
    named_tuple_array, counter = dao.get_values_of_datatype(project_id, kind, filters)
    print("Found " + str(counter) + " entities of type " + str(kind))

    result = []
    for named_tuple in named_tuple_array:
        dt_id = named_tuple[0]
        result.append(dao.get_generic_entity(kind, dt_id)[0])

    return result

[docs] def search_and_export_ts(project_id, export_folder=os.path.join("~", "TVB")): # This is the simplest filter you could write: filter and entity by Subject filter_connectivity = FilterChain(fields=[FilterChain.datatype + '.subject'], operations=["=="], values=[DataTypeMetaData.DEFAULT_SUBJECT]) connectivities = _retrieve_entities_by_filters(ConnectivityIndex, project_id, filter_connectivity) # A more complex filter: by linked entity (connectivity), saompling, operation date: filter_timeseries = FilterChain(fields=[FilterChain.datatype + '.fk_connectivity_gid', FilterChain.datatype + '.sample_period', FilterChain.operation + '.create_date' ], operations=["==", ">=", "<="], values=[connectivities[0].gid, 0, ] ) # If you want to filter another type of TS, change the kind class bellow, # instead of TimeSeriesRegion use TimeSeriesEEG, or TimeSeriesSurface, etc. timeseries = _retrieve_entities_by_filters(TimeSeriesRegionIndex, project_id, filter_timeseries) for ts in timeseries: print("=============================") print(ts.summary_info) storage_h5 = h5.path_for_stored_index(ts) print(" Original file: " + str(storage_h5)) destination_folder = os.path.expanduser(export_folder) shutil.copy2(storage_h5, destination_folder) print("File {0} exported in {1}".format(storage_h5, destination_folder))
if __name__ == '__main__': from tvb.interfaces.command.lab import * if len(argv) < 2: PROJECT_ID = 1 else: PROJECT_ID = int(argv[1]) print("We will try to search datatypes in project with ID:" + str(PROJECT_ID)) search_and_export_ts(PROJECT_ID)