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Bigtable: add filter region tag to hello world #1878

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Merged
merged 3 commits into from
Dec 3, 2018
Merged

Bigtable: add filter region tag to hello world #1878

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f288df3
use row.cell rather than row.cell_value in the example
AVaksman Nov 29, 2018
f5cb006
move the comment line
AVaksman Dec 2, 2018
67e0115
Merge branch 'master' into Bigtable-update-hello-world
billyjacobson Dec 3, 2018
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13 changes: 10 additions & 3 deletions bigtable/hello/main.py
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Original file line number Diff line number Diff line change
Expand Up @@ -25,11 +25,13 @@
"""

import argparse
# [START dependencies]
import datetime

from google.cloud import bigtable
from google.cloud.bigtable import column_family
from google.cloud.bigtable import row_filters
# [END dependencies]


def main(project_id, instance_id, table_id):
Expand Down Expand Up @@ -82,14 +84,19 @@ def main(project_id, instance_id, table_id):
table.mutate_rows(rows)
# [END writing_rows]

# [START creating_a_filter]
# Create a filter to only retrieve the most recent version of the cell
# for each column accross entire row.
row_filter = row_filters.CellsColumnLimitFilter(1)
# [END creating_a_filter]

# [START getting_a_row]
print('Getting a single greeting by row key.')
key = 'greeting0'.encode()

# Only retrieve the most recent version of the cell.
row_filter = row_filters.CellsColumnLimitFilter(1)
row = table.read_row(key, row_filter)
print(row.cell_value(column_family_id, column))
cell = row.cells[column_family_id][column][0]
print(cell.value.decode('utf-8'))
# [END getting_a_row]

# [START scanning_all_rows]
Expand Down