def schema_selection(db_alias: str):
"""Asynchronously computes the list of schemas with foreign key constraints"""
schemas_with_fk_constraints = schemas_with_foreign_key_constraints(db_alias)
if not schemas_with_fk_constraints or len(schemas_with_fk_constraints) == 0:
return str(_.i['No schemas with foreign key constraints found'])
return ''.join(xml.render([
[_.div(class_='form-check form-check-inline')[
_.label(class_='form-check-label')[
_.input(class_="form-check-input schema-checkbox", type="checkbox", value=schema_name)[
''], ' ', schema_name]]
for schema_name in sorted(schemas_with_fk_constraints)],
'   ',
_.div(class_='form-check form-check-inline')[
_.label(class_='form-check-label')[
_.input(class_="form-check-input", id='hide-columns-checkbox', type="checkbox")[
''], ' ', 'hide columns']],
'   ',
_.div(class_='form-check form-check-inline')[
_.label(class_='form-check-label')[
'graphviz engine ',
_.select(id='engine', style='border:none;background-color:white;')[
[_.option(value=engine)[engine] for engine in ['neato', 'dot', 'twopi', 'fdp']]
]]],
_.script['''
var schemaPage = SchemaPage("''' + flask.url_for('mara_db.index_page', db_alias=db_alias) + '''", "''' + db_alias + '''");
''']]))
def schema_selection(db_alias: str):
"""Asynchronously computes the list of schemas with foreign key constraints"""
schemas_with_fk_constraints = []
with mara_db.postgresql.postgres_cursor_context(db_alias) as cursor:
cursor.execute('''
SELECT
array_cat(array_agg(DISTINCT constrained_table_schema.nspname), array_agg(DISTINCT referenced_table_schema.nspname))
FROM pg_constraint
JOIN pg_class constrained_table ON constrained_table.oid = pg_constraint.conrelid
JOIN pg_namespace constrained_table_schema ON constrained_table.relnamespace = constrained_table_schema.oid
JOIN pg_class referenced_table ON referenced_table.oid = pg_constraint.confrelid
JOIN pg_namespace referenced_table_schema ON referenced_table.relnamespace = referenced_table_schema.oid'''
)
result = cursor.fetchone()
if result != (None, ):
schemas_with_fk_constraints = sorted(list(set(result[0])))
if len(schemas_with_fk_constraints) == 0:
return str(_.i['No schemas with foreign key constraints found'])
return ''.join(
xml.render(
[[
_.div(class_='form-check form-check-inline')[_.label(
class_='form-check-label')[
_.input(class_="form-check-input schema-checkbox",
type="checkbox",
value=schema_name)[''], ' ', schema_name]]
for schema_name in sorted(schemas_with_fk_constraints)
], '   ',
_.div(class_='form-check form-check-inline')[_.label(
class_='form-check-label')[_.input(class_="form-check-input",
id='hide-columns-checkbox',
type="checkbox")[''], ' ',
'hide columns']], '   ',
_.div(class_='form-check form-check-inline')[_.label(
class_='form-check-label'
)['graphviz engine ',
_.select(id='engine',
style='border:none;background-color:white;')[[
_.option(value=engine)[engine]
for engine in ['neato', 'dot', 'twopi', 'fdp']
]]]], _.script['''
var schemaPage = SchemaPage("''' + flask.url_for('mara_db.index_page',
db_alias=db_alias) +
'''", "''' + db_alias + '''");
''']]))
def last_runs_selector(path: str):
"""
Returns a html select element for selecting among the last runs of a node
Args:
path: The path of the node
Returns:
A `<select..><option ../><option ../></select>` element
"""
from ..logging import node_cost
node, __ = pipelines.find_node(path.split('/'))
with mara_db.postgresql.postgres_cursor_context(
'mara') as cursor: # type: psycopg2.extensions.cursor
cursor.execute(
f'''
SELECT
run_id,
to_char(start_time, 'Mon DD HH24:MI') AS start_time,
extract(EPOCH FROM (end_time - start_time)) AS duration,
succeeded,
label_filter
FROM data_integration_node_run
WHERE node_path = {"%s"}
ORDER BY run_id DESC;''', (node.path(), ))
return str(
_.select(id='last-runs-selector',
class_='custom-select',
style="border:none",
onchange=f"nodePage.switchRun(this.value, '{path}')")
[[
_.option(value=str(run_id))
[start_time, ' (',
f'{node_cost.format_duration(duration)}, {"succeeded" if succeeded else "failed"}'
if succeeded is not None else 'unfinished',
(f', label-filter: {label_filter}' if label_filter else ''),
')'] for run_id, start_time, duration, succeeded, label_filter
in cursor.fetchall()
]])