Ejemplo n.º 1
0
    def test_disaggregate_extended_fields(self):

        title, schemas, submissions = build_fixture(
            'auto_report_extended_fields')
        fp = FormPack(schemas, title)

        report = fp.autoreport()
        stats = report.get_stats(submissions, split_by="when")

        assert stats.submissions_count == 22

        stats = [(str(repr(field)), field_name, stats_dict)
                 for field, field_name, stats_dict in stats]

        for stat in stats:
            stats_dict = dict(stat[2])
            for value in stats_dict.get("values"):
                value_list = value[1]
                percentage_responses = [
                    x[0] for x in value_list.get("percentage")
                ]
                frequency_responses = [
                    x[0] for x in value_list.get("frequency")
                ]
                assert percentage_responses == frequency_responses
                assert percentage_responses[-1] == "..."
Ejemplo n.º 2
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    def test_rich_report(self):

        title, schemas, submissions = build_fixture('auto_report')
        fp = FormPack(schemas, title)

        report = fp.autoreport()
        stats = report.get_stats(submissions)

        assert stats.submissions_count == 6

        stats = [(unicode(repr(f)), n, d) for f, n, d in stats]

        expected = [
            ("<TextField name='restaurant_name' type='text'>",
                'restaurant_name',
                {'frequency': [('Felipes', 2),
                               ('The other one', 2),
                               ('That one', 1)],
                 'not_provided': 1,
                 'percentage': [('Felipes', 33.33),
                                ('The other one', 33.33),
                                ('That one', 16.67)],
                 'provided': 5,
                 'show_graph': False,
                 'total_count': 6}),
            ("<FormGPSField name='location' type='geopoint'>",
                'location',
                {'not_provided': 1,
                 'provided': 5,
                 'show_graph': False,
                 'total_count': 6}),
            ("<DateField name='when' type='date'>",
                'when',
                {'frequency': [('2001-01-01', 2),
                               ('2002-01-01', 2),
                               ('2003-01-01', 1)],
                 'not_provided': 1,
                 'percentage': [('2001-01-01', 33.33),
                                ('2002-01-01', 33.33),
                                ('2003-01-01', 16.67)],

                 'provided': 5,
                 'show_graph': True,
                 'total_count': 6}),
            ("<NumField name='howmany' type='integer'>",
                'howmany',
                {'mean': 1.6,
                 'median': 2,
                 'mode': 2,
                 'not_provided': 1,
                 'provided': 5,
                 'show_graph': False,
                 'stdev': 0.5477225575051661,
                 'total_count': 6}
             )
        ]
        for (i, stat) in enumerate(stats):
            assert stat == expected[i]
Ejemplo n.º 3
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    def test_rich_report(self):

        title, schemas, submissions = build_fixture('auto_report')
        fp = FormPack(schemas, title)

        report = fp.autoreport()
        stats = report.get_stats(submissions)

        assert stats.submissions_count == 6

        stats = [(unicode(repr(f)), n, d) for f, n, d in stats]

        expected = [
            ("<TextField name='restaurant_name' type='text'>",
                'restaurant_name',
                {'frequency': [('Felipes', 2),
                               ('The other one', 2),
                               ('That one', 1)],
                 'not_provided': 1,
                 'percentage': [('Felipes', 33.33),
                                ('The other one', 33.33),
                                ('That one', 16.67)],
                 'provided': 5,
                 'show_graph': False,
                 'total_count': 6}),
            ("<FormGPSField name='location' type='geopoint'>",
                'location',
                {'not_provided': 1,
                 'provided': 5,
                 'show_graph': False,
                 'total_count': 6}),
            ("<DateField name='when' type='date'>",
                'when',
                {'frequency': [('2001-01-01', 2),
                               ('2002-01-01', 2),
                               ('2003-01-01', 1)],
                 'not_provided': 1,
                 'percentage': [('2001-01-01', 33.33),
                                ('2002-01-01', 33.33),
                                ('2003-01-01', 16.67)],

                 'provided': 5,
                 'show_graph': True,
                 'total_count': 6}),
            ("<NumField name='howmany' type='integer'>",
                'howmany',
                {'mean': 1.6,
                 'median': 2,
                 'mode': 2,
                 'not_provided': 1,
                 'provided': 5,
                 'show_graph': False,
                 'stdev': 0.5477225575051661,
                 'total_count': 6}
             )
        ]
        for (i, stat) in enumerate(stats):
            assert stat == expected[i]
Ejemplo n.º 4
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    def test_simple_report(self):

        title, schemas, submissions = build_fixture('restaurant_profile')
        fp = FormPack(schemas, title)

        report = fp.autoreport()
        stats = report.get_stats(submissions, lang='french')

        assert stats.submissions_count == 4

        stats = [(str(repr(f)), n, d) for f, n, d in stats]

        expected = [
            ("<TextField name='restaurant_name' type='text'>",
             'nom du restaurant', {
                 'frequency': [('Taco Truck', 1), ('Harvest', 1),
                               ('Wololo', 1), ('Los pollos hermanos', 1)],
                 'not_provided':
                 0,
                 'percentage': [('Taco Truck', 25.00), ('Harvest', 25.00),
                                ('Wololo', 25.00),
                                ('Los pollos hermanos', 25.00)],
                 'provided':
                 4,
                 'show_graph':
                 False,
                 'total_count':
                 4
             }),
            ("<FormGPSField name='location' type='geopoint'>", 'lieu', {
                'not_provided': 0,
                'provided': 4,
                'show_graph': False,
                'total_count': 4
            }),
            ("<FormChoiceFieldWithMultipleSelect name='eatery_type' type='select_multiple'>",
             'type de restaurant', {
                 'frequency': [('traditionnel', 2),
                               ('avec vente \xe0 emporter', 1)],
                 'not_provided':
                 1,
                 'percentage': [('traditionnel', 50.00),
                                ('avec vente \xe0 emporter', 25.00)],
                 'provided':
                 3,
                 'show_graph':
                 True,
                 'total_count':
                 4
             })
        ]

        for i, stat in enumerate(stats):
            assert stat == expected[i]
Ejemplo n.º 5
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    def test_stats_with_non_numeric_value_for_numeric_field(self):
        """
        A string response to an integer question, for example, should not cause
        a crash; it should be treated as if no response was provided
        """

        title = 'Just one number'
        schemas = [{
            'content': {
                'survey': [{
                    'type': 'integer',
                    'name': 'the_number',
                    'label': 'Enter the number!',
                }]
            }
        }]
        submissions = [
            {
                'the_number': 10
            },
            {
                'the_number': 20
            },
            {
                'the_number': 30
            },
            {
                'the_number': 'oops!'
            },
        ]
        fp = FormPack(schemas, title)

        report = fp.autoreport()
        stats = report.get_stats(submissions)

        assert stats.submissions_count == len(submissions)

        stats = [(str(repr(f)), n, d) for f, n, d in stats]
        expected = [(
            "<NumField name='the_number' type='integer'>",
            'the_number',
            {
                'mean': 20.0,
                'median': 20,
                'mode': '*',
                'not_provided': 1,
                'provided': 3,
                'show_graph': False,
                'stdev': 10.0,
                'total_count': 4,
            },
        )]
        for i, stat in enumerate(stats):
            assert stat == expected[i]
Ejemplo n.º 6
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def test_submission_counts_match():
    title, schemas, submissions = build_fixture('restaurant_profile')
    fp = FormPack(schemas, title)

    report = fp.autoreport(versions=fp.versions.keys())
    stats = report.get_stats(submissions)
    assert stats.submissions_count == len(submissions)
    assert stats.submission_counts_by_version == {
        u'rpv1': 1,
        u'rpV2': 1,
        u'rpV3': 2,
        u'rpV4': 4,
    }
Ejemplo n.º 7
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    def test_simple_report(self):

        title, schemas, submissions = build_fixture('restaurant_profile')
        fp = FormPack(schemas, title)

        report = fp.autoreport()
        stats = report.get_stats(submissions, lang='french')

        assert stats.submissions_count == 4

        stats = [(unicode(repr(f)), n, d) for f, n, d in stats]

        expected = [
            (
                "<TextField name='restaurant_name' type='text'>",
                'nom du restaurant',
                {'frequency': [('Taco Truck', 1),
                               ('Harvest', 1),
                               ('Los pollos hermanos', 1),
                               ('Wololo', 1)],
                 'not_provided': 0,
                 'percentage': [('Taco Truck', 25.00),
                                ('Harvest', 25.00),
                                ('Los pollos hermanos', 25.00),
                                ('Wololo', 25.00)],
                 'provided': 4,
                 'show_graph': False,
                 'total_count': 4}
            ),
            (
                "<FormGPSField name='location' type='geopoint'>",
                'lieu',
                {'not_provided': 0,
                 'provided': 4,
                 'show_graph': False,
                 'total_count': 4}
            ),
            (
                "<FormChoiceFieldWithMultipleSelect name='eatery_type' type='select_multiple'>",
                'type de restaurant',
                {'frequency': [('traditionnel', 2), ('avec vente \xe0 emporter', 1)],
                 'not_provided': 1,
                 'percentage': [('traditionnel', 50.00),
                                ('avec vente \xe0 emporter', 25.00)],
                 'provided': 3,
                 'show_graph': True,
                 'total_count': 4}
            )
        ]
        for (i, stat) in enumerate(stats):
            assert stat == expected[i]
Ejemplo n.º 8
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    def test_disaggregate(self):

        title, schemas, submissions = build_fixture('auto_report')

        fp = FormPack(schemas, title)

        report = fp.autoreport()
        stats = report.get_stats(submissions, split_by="when")

        assert stats.submissions_count == 6

        stats = [(unicode(repr(f)), n, d) for f, n, d in stats]

        expected = [
            ("<TextField name='restaurant_name' type='text'>",
             'restaurant_name',
             {'not_provided': 1,
              'provided': 5,
              'show_graph': False,
              'total_count': 6,
              'values': [('Felipes',
                          {'frequency': [('2001-01-01', 2),
                                         ('2002-01-01', 0),
                                         ('2003-01-01', 0)],
                           'percentage': [('2001-01-01', 33.33),
                                          ('2002-01-01', 0.00),
                                          ('2003-01-01', 0.00)]}),
                         ('The other one',
                          {'frequency': [('2001-01-01', 0),
                                         ('2002-01-01', 2),
                                         ('2003-01-01', 0)],
                           'percentage': [('2001-01-01', 0.00),
                                          ('2002-01-01', 33.33),
                                          ('2003-01-01', 0.00)]}),
                         ('That one',
                          {'frequency': [('2001-01-01', 0),
                                         ('2002-01-01', 0),
                                         ('2003-01-01', 1)],
                           'percentage': [('2001-01-01', 0.00),
                                          ('2002-01-01', 0.00),
                                          ('2003-01-01', 16.67)]})]}),
            ("<FormGPSField name='location' type='geopoint'>",
             'location',
             {'not_provided': 1,
              'provided': 5,
              'show_graph': False,
              'total_count': 6}),
            ("<NumField name='howmany' type='integer'>",
             'howmany',
             {'not_provided': 1,
              'provided': 5,
              'show_graph': False,
              'total_count': 6,
              'values': (('2001-01-01',
                          {'mean': 1.5,
                           'median': 1.5,
                           'mode': '*',
                                   'stdev': 0.7071067811865476}),
                         ('2002-01-01',
                          {'mean': 2.0, 'median': 2.0, 'mode': 2, 'stdev': 0.0}),
                         ('2003-01-01',
                          {'mean': 1.0,
                           'median': 1,
                           'mode': '*',
                                   'stdev': u'*'}))})]
        for (i, stat) in enumerate(stats):
            assert stat == expected[i]
Ejemplo n.º 9
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    def test_simple_multi_version_report(self):
        title, schemas, submissions = build_fixture('site_inspection')
        fp = FormPack(schemas, title)

        report = fp.autoreport(versions=fp.versions.keys())
        stats = report.get_stats(submissions)

        self.assertEqual(stats.submissions_count, 10)

        stats = [(repr(f), n, d) for f, n, d in stats]

        self.assertListEqual(stats, [
            (
               "<TextField name='inspector' type='text'>",
                u'inspector',
                   {u'frequency': [(u'burger', 5), (u'clouseau', 5)],
                    u'not_provided': 0,
                    u'percentage': [(u'burger', 50.0), (u'clouseau', 50.0)],
                    u'provided': 10,
                    u'show_graph': False,
                    u'total_count': 10}
            ),
            (
               "<FormChoiceField name='did_you_find_the_site' type='select_one'>",
                u'did_you_find_the_site',
                   {u'frequency': [(0, 4), (1, 4), (u'yes', 1), (u'no', 1)],
                    u'not_provided': 0,
                    u'percentage': [(0, 40.0),
                                    (1, 40.0),
                                    (u'yes', 10.0),
                                    (u'no', 10.0)],
                    u'provided': 10,
                    u'show_graph': True,
                    u'total_count': 10}
            ),
            (
               "<FormChoiceField name='was_there_damage_to_the_site' type='select_one'>",
                u'was_there_damage_to_the_site',
                   {u'frequency': [(0, 2), (1, 2), (u'yes', 1)],
                    u'not_provided': 5,
                    u'percentage': [(0, 40.0), (1, 40.0), (u'yes', 20.0)],
                    u'provided': 5,
                    u'show_graph': True,
                    u'total_count': 10}
            ),
            (
               "<FormChoiceField name='was_there_damage_to_the_site_dupe' type='select_one'>",
                u'was_there_damage_to_the_site_dupe',
                   {u'frequency': [(1, 1), (u'yes', 1)],
                    u'not_provided': 8,
                    u'percentage': [(1, 50.0), (u'yes', 50.0)],
                    u'provided': 2,
                    u'show_graph': True,
                    u'total_count': 10}
            ),
            (
               "<NumField name='ping' type='integer'>",
                u'ping',
                   {u'mean': 238.4,
                    u'median': 123,
                    u'mode': u'*',
                    u'not_provided': 5,
                    u'provided': 5,
                    u'show_graph': False,
                    u'stdev': 255.77392361224003,
                    u'total_count': 10}
            ),
            (
               "<NumField name='rssi' type='integer'>",
                u'rssi',
                   {u'mean': 63.8,
                    u'median': u'65',
                    u'mode': u'*',
                    u'not_provided': 5,
                    u'provided': 5,
                    u'show_graph': False,
                    u'stdev': 35.22357165308481,
                    u'total_count': 10}
            ),
            (
               "<FormChoiceField name='is_the_gate_secure' type='select_one'>",
                u'is_the_gate_secure',
                   {u'frequency': [(0, 2), (1, 2), (u'no', 1)],
                    u'not_provided': 5,
                    u'percentage': [(0, 40.0), (1, 40.0), (u'no', 20.0)],
                    u'provided': 5,
                    u'show_graph': True,
                    u'total_count': 10}
            ),
            (
               "<FormChoiceField name='is_plant_life_encroaching' type='select_one'>",
                u'is_plant_life_encroaching',
                   {u'frequency': [(0, 1), (1, 3), (u'yes', 1)],
                    u'not_provided': 5,
                    u'percentage': [(0, 20.0), (1, 60.0), (u'yes', 20.0)],
                    u'provided': 5,
                    u'show_graph': True,
                    u'total_count': 10}
            ),
            (
               "<FormChoiceField name='please_rate_the_impact_of_any_defects_observed' type='select_one'>",
                u'please_rate_the_impact_of_any_defects_observed',
                   {u'frequency': [(u'moderate', 4), (u'severe', 3), (u'low', 3)],
                    u'not_provided': 0,
                    u'percentage': [(u'moderate', 40.0),
                                    (u'severe', 30.0),
                                    (u'low', 30.0)],
                    u'provided': 10,
                    u'show_graph': True,
                    u'total_count': 10}
            )
        ])
Ejemplo n.º 10
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def data_by_identifiers(asset,
                        field_names=None,
                        submission_stream=None,
                        report_styles=None,
                        lang=None,
                        fields=None,
                        split_by=None):
    if submission_stream is None:
        _userform_id = asset.deployment.mongo_userform_id
        submission_stream = get_instances_for_userform_id(_userform_id)
    _versions = asset.deployed_versions

    # need ability to look up deprecated IDs
    _reversion_ids = dict([(str(v._reversion_version_id), v.uid)
                           for v in _versions if v._reversion_version_id])

    schemas = [v.to_formpack_schema() for v in _versions]

    _version_id = schemas[0]['version']
    _version_id_key = schemas[0].get('version_id_key', '__version__')

    def _inject_version_id(result):
        if _version_id_key not in result:
            result[_version_id_key] = _version_id
        elif result[_version_id_key] in _reversion_ids:
            result[_version_id_key] = _reversion_ids[result[_version_id_key]]
        return result

    submission_stream = (_inject_version_id(result)
                         for result in submission_stream)
    pack = FormPack(versions=schemas, id_string=asset.uid)
    _all_versions = pack.versions.keys()
    report = pack.autoreport(versions=_all_versions)
    fields_by_name = OrderedDict([
        (field.name, field)
        for field in pack.get_fields_for_versions(versions=_all_versions)
    ])
    if field_names is None:
        field_names = fields_by_name.keys()
    if split_by and (split_by not in fields_by_name):
        raise serializers.ValidationError(
            _("`split_by` field '{}' not found.").format(split_by))
    if split_by and (fields_by_name[split_by].data_type != 'select_one'):
        raise serializers.ValidationError(
            _("`split_by` field '{}' is not a select one question.").format(
                split_by))
    if report_styles is None:
        report_styles = asset.report_styles
    specified_styles = report_styles.get('specified', {})
    kuids = report_styles.get('kuid_names', {})

    def _stat_dict_to_array(stat, field_name):
        freq = stat.pop('frequency', [])
        if len(freq) > 0:
            prcntg = stat.pop('percentage')
            responses, frequencies = zip(*freq)
            responses_percentage, percentages = zip(*prcntg)
            if responses != responses_percentage:
                raise ValueError(
                    "Frequency and percentage response lists for field '{}' mismatch."
                    .format(field_name))
            stat.update({
                'responses': responses,
                'frequencies': frequencies,
                'percentages': percentages
            })

    def _package_stat(field, _, stat, split_by):
        identifier = kuids.get(field.name)
        if not split_by:
            _stat_dict_to_array(stat, field.name)
        elif 'values' in stat:
            for _, sub_stat in stat['values']:
                _stat_dict_to_array(sub_stat, field.name)
        return {
            'name': field.name,
            'row': {
                'type': fields_by_name.get(field.name).data_type
            },
            'data': stat,
            'kuid': identifier,
            'style': specified_styles.get(identifier, {}),
        }

    return [
        _package_stat(*stat_tup, split_by=split_by)
        for stat_tup in report.get_stats(submission_stream,
                                         fields=field_names,
                                         lang=lang,
                                         split_by=split_by)
    ]
Ejemplo n.º 11
0
    def test_rich_report_or_other(self):

        title, schemas, submissions = build_fixture('or_other')
        fp = FormPack(schemas, title)

        report = fp.autoreport()
        stats = report.get_stats(submissions)

        assert stats.submissions_count == 3

        stats = [(str(repr(f)), n, d) for f, n, d in stats]

        expected = [
            (
                "<FormChoiceField name='fav_emperor' type='select_one'>",
                'fav_emperor',
                {
                    'total_count': 3,
                    'not_provided': 0,
                    'provided': 3,
                    'show_graph': True,
                    'frequency': [('other', 2), ('augustus', 1)],
                    'percentage': [('other', 66.67), ('augustus', 33.33)],
                },
            ),
            (
                "<TextField name='fav_emperor_other' type='text'>",
                'fav_emperor_other',
                {
                    'total_count': 3,
                    'not_provided': 1,
                    'provided': 2,
                    'show_graph': False,
                    'frequency': [('Nero', 1), ('Marcus Aurelius', 1)],
                    'percentage': [('Nero', 33.33),
                                   ('Marcus Aurelius', 33.33)],
                },
            ),
            (
                "<FormChoiceFieldWithMultipleSelect name='fav_emperors' type='select_multiple'>",
                'fav_emperors',
                {
                    'total_count':
                    3,
                    'not_provided':
                    0,
                    'provided':
                    3,
                    'show_graph':
                    True,
                    'frequency': [
                        ('julius', 2),
                        ('caligula', 1),
                        ('other', 1),
                        ('tiberius', 1),
                        ('augustus', 1),
                    ],
                    'percentage': [
                        ('julius', 66.67),
                        ('caligula', 33.33),
                        ('other', 33.33),
                        ('tiberius', 33.33),
                        ('augustus', 33.33),
                    ],
                },
            ),
            (
                "<TextField name='fav_emperors_other' type='text'>",
                'fav_emperors_other',
                {
                    'total_count': 3,
                    'not_provided': 2,
                    'provided': 1,
                    'show_graph': False,
                    'frequency': [('Commodus', 1)],
                    'percentage': [('Commodus', 33.33)],
                },
            ),
        ]
        for i, stat in enumerate(stats):
            assert stat == expected[i]
Ejemplo n.º 12
0
    def test_disaggregate(self):

        title, schemas, submissions = build_fixture('auto_report')
        fp = FormPack(schemas, title)

        report = fp.autoreport()
        stats = report.get_stats(submissions, split_by="when")

        assert stats.submissions_count == 6

        stats = [(unicode(repr(f)), n, d) for f, n, d in stats]

        expected = [
            ("<TextField name='restaurant_name' type='text'>",
             'restaurant_name',
             {'not_provided': 1,
              'provided': 5,
              'show_graph': False,
              'total_count': 6,
              'values': [('Felipes',
                          {'frequency': [('2001-01-01', 2),
                                         ('2002-01-01', 0),
                                         ('2003-01-01', 0)],
                           'percentage': [('2001-01-01', 33.33),
                                          ('2002-01-01', 0.00),
                                          ('2003-01-01', 0.00)]}),
                         ('The other one',
                          {'frequency': [('2001-01-01', 0),
                                         ('2002-01-01', 2),
                                         ('2003-01-01', 0)],
                           'percentage': [('2001-01-01', 0.00),
                                          ('2002-01-01', 33.33),
                                          ('2003-01-01', 0.00)]}),
                         ('That one',
                          {'frequency': [('2001-01-01', 0),
                                         ('2002-01-01', 0),
                                         ('2003-01-01', 1)],
                           'percentage': [('2001-01-01', 0.00),
                                          ('2002-01-01', 0.00),
                                          ('2003-01-01', 16.67)]})]}),
            ("<FormGPSField name='location' type='geopoint'>",
             'location',
             {'not_provided': 1,
              'provided': 5,
              'show_graph': False,
              'total_count': 6}),
            ("<NumField name='howmany' type='integer'>",
             'howmany',
             {'not_provided': 1,
              'provided': 5,
              'show_graph': False,
              'total_count': 6,
              'values': (('2001-01-01',
                          {'mean': 1.5,
                           'median': 1.5,
                           'mode': '*',
                                   'stdev': 0.7071067811865476}),
                         ('2002-01-01',
                          {'mean': 2.0, 'median': 2.0, 'mode': 2, 'stdev': 0.0}),
                         ('2003-01-01',
                          {'mean': 1.0,
                           'median': 1,
                           'mode': '*',
                                   'stdev': u'*'}))})]
        for (i, stat) in enumerate(stats):
            assert stat == expected[i]
Ejemplo n.º 13
0
def data_by_identifiers(asset, field_names=None, submission_stream=None,
                        report_styles=None, lang=None, fields=None,
                        split_by=None):
    if submission_stream is None:
        _userform_id = asset.deployment.mongo_userform_id
        submission_stream = get_instances_for_userform_id(_userform_id)
    _versions = asset.deployed_versions

    # need ability to look up deprecated IDs
    _reversion_ids = dict([
        (str(v._reversion_version_id), v.uid)
        for v in _versions if v._reversion_version_id
    ])

    schemas = [v.to_formpack_schema() for v in _versions]

    _version_id = schemas[0]['version']
    _version_id_key = schemas[0].get('version_id_key', '__version__')

    def _inject_version_id(result):
        if _version_id_key not in result:
            result[_version_id_key] = _version_id
        elif result[_version_id_key] in _reversion_ids:
            result[_version_id_key] = _reversion_ids[result[_version_id_key]]
        return result
    submission_stream = (_inject_version_id(result)
                         for result in submission_stream)
    pack = FormPack(versions=schemas, id_string=asset.uid)
    _all_versions = pack.versions.keys()
    report = pack.autoreport(versions=_all_versions)
    fields_by_name = OrderedDict([
            (field.name, field) for field in
                pack.get_fields_for_versions(versions=_all_versions)
        ])
    if field_names is None:
        field_names = fields_by_name.keys()
    if split_by and (split_by not in fields_by_name):
        raise serializers.ValidationError(_("`split_by` field '{}' not found.").format(split_by))
    if split_by and (fields_by_name[split_by].data_type != 'select_one'):
        raise serializers.ValidationError(_("`split_by` field '{}' is not a select one question.").
                                          format(split_by))
    if report_styles is None:
        report_styles = asset.report_styles
    specified_styles = report_styles.get('specified', {})
    kuids = report_styles.get('kuid_names', {})

    def _stat_dict_to_array(stat, field_name):
        freq = stat.pop('frequency', [])
        if len(freq) > 0:
            prcntg = stat.pop('percentage')
            responses, frequencies = zip(*freq)
            responses_percentage, percentages = zip(*prcntg)
            if responses != responses_percentage:
                raise ValueError("Frequency and percentage response lists for field '{}' mismatch."
                                 .format(field_name))
            stat.update({'responses': responses,
                         'frequencies': frequencies,
                         'percentages': percentages})

    def _package_stat(field, _, stat, split_by):
        identifier = kuids.get(field.name)
        if not split_by:
            _stat_dict_to_array(stat, field.name)
        elif 'values' in stat:
            for _, sub_stat in stat['values']:
                _stat_dict_to_array(sub_stat, field.name)
        return {
            'name': field.name,
            'row': {'type': fields_by_name.get(field.name).data_type},
            'data': stat,
            'kuid': identifier,
            'style': specified_styles.get(identifier, {}),
        }

    return [_package_stat(*stat_tup, split_by=split_by) for
            stat_tup in report.get_stats(submission_stream,
                                         fields=field_names,
                                         lang=lang,
                                         split_by=split_by)
    ]