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core.py
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core.py
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from __future__ import absolute_import
from __future__ import division
from __future__ import print_function
from __future__ import unicode_literals
from datetime import datetime, timedelta
import json
import logging
import pandas as pd
import pickle
import re
import time
import traceback
import sqlalchemy as sqla
from flask import (
g, request, redirect, flash, Response, render_template, Markup)
from flask_appbuilder import expose
from flask_appbuilder.actions import action
from flask_appbuilder.models.sqla.interface import SQLAInterface
from flask_appbuilder.security.decorators import has_access_api
from flask_appbuilder.security.sqla import models as ab_models
from flask_babel import gettext as __
from flask_babel import lazy_gettext as _
from sqlalchemy import create_engine
from werkzeug.routing import BaseConverter
from superset import (
appbuilder, cache, db, viz, utils, app,
sm, sql_lab, results_backend, security,
)
from superset.legacy import cast_form_data
from superset.utils import has_access
from superset.connectors.connector_registry import ConnectorRegistry
import superset.models.core as models
from superset.models.sql_lab import Query
from superset.sql_parse import SupersetQuery
from .base import (
api, SupersetModelView, BaseSupersetView, DeleteMixin,
SupersetFilter, get_user_roles, json_error_response, get_error_msg
)
config = app.config
log_this = models.Log.log_this
can_access = utils.can_access
QueryStatus = models.QueryStatus
DAR = models.DatasourceAccessRequest
ALL_DATASOURCE_ACCESS_ERR = __(
"This endpoint requires the `all_datasource_access` permission")
DATASOURCE_MISSING_ERR = __("The datasource seems to have been deleted")
ACCESS_REQUEST_MISSING_ERR = __(
"The access requests seem to have been deleted")
USER_MISSING_ERR = __("The user seems to have been deleted")
DATASOURCE_ACCESS_ERR = __("You don't have access to this datasource")
def get_database_access_error_msg(database_name):
return __("This view requires the database %(name)s or "
"`all_datasource_access` permission", name=database_name)
def get_datasource_access_error_msg(datasource_name):
return __("This endpoint requires the datasource %(name)s, database or "
"`all_datasource_access` permission", name=datasource_name)
def json_success(json_msg, status=200):
return Response(json_msg, status=status, mimetype="application/json")
def is_owner(obj, user):
""" Check if user is owner of the slice """
return obj and obj.owners and user in obj.owners
def check_ownership(obj, raise_if_false=True):
"""Meant to be used in `pre_update` hooks on models to enforce ownership
Admin have all access, and other users need to be referenced on either
the created_by field that comes with the ``AuditMixin``, or in a field
named ``owners`` which is expected to be a one-to-many with the User
model. It is meant to be used in the ModelView's pre_update hook in
which raising will abort the update.
"""
if not obj:
return False
security_exception = utils.SupersetSecurityException(
"You don't have the rights to alter [{}]".format(obj))
if g.user.is_anonymous():
if raise_if_false:
raise security_exception
return False
roles = (r.name for r in get_user_roles())
if 'Admin' in roles:
return True
session = db.create_scoped_session()
orig_obj = session.query(obj.__class__).filter_by(id=obj.id).first()
owner_names = (user.username for user in orig_obj.owners)
if (
hasattr(orig_obj, 'created_by') and
orig_obj.created_by and
orig_obj.created_by.username == g.user.username):
return True
if (
hasattr(orig_obj, 'owners') and
g.user and
hasattr(g.user, 'username') and
g.user.username in owner_names):
return True
if raise_if_false:
raise security_exception
else:
return False
class SliceFilter(SupersetFilter):
def apply(self, query, func): # noqa
if self.has_all_datasource_access():
return query
perms = self.get_view_menus('datasource_access')
# TODO(bogdan): add `schema_access` support here
return query.filter(self.model.perm.in_(perms))
class DashboardFilter(SupersetFilter):
"""List dashboards for which users have access to at least one slice"""
def apply(self, query, func): # noqa
if self.has_all_datasource_access():
return query
Slice = models.Slice # noqa
Dash = models.Dashboard # noqa
# TODO(bogdan): add `schema_access` support here
datasource_perms = self.get_view_menus('datasource_access')
slice_ids_qry = (
db.session
.query(Slice.id)
.filter(Slice.perm.in_(datasource_perms))
)
query = query.filter(
Dash.id.in_(
db.session.query(Dash.id)
.distinct()
.join(Dash.slices)
.filter(Slice.id.in_(slice_ids_qry))
)
)
return query
def generate_download_headers(extension):
filename = datetime.now().strftime("%Y%m%d_%H%M%S")
content_disp = "attachment; filename={}.{}".format(filename, extension)
headers = {
"Content-Disposition": content_disp,
}
return headers
class DatabaseView(SupersetModelView, DeleteMixin): # noqa
datamodel = SQLAInterface(models.Database)
list_columns = [
'database_name', 'backend', 'allow_run_sync', 'allow_run_async',
'allow_dml', 'creator', 'modified']
add_columns = [
'database_name', 'sqlalchemy_uri', 'cache_timeout', 'extra',
'expose_in_sqllab', 'allow_run_sync', 'allow_run_async',
'allow_ctas', 'allow_dml', 'force_ctas_schema']
search_exclude_columns = ('password',)
edit_columns = add_columns
show_columns = [
'tables',
'cache_timeout',
'extra',
'database_name',
'sqlalchemy_uri',
'perm',
'created_by',
'created_on',
'changed_by',
'changed_on',
]
add_template = "superset/models/database/add.html"
edit_template = "superset/models/database/edit.html"
base_order = ('changed_on', 'desc')
description_columns = {
'sqlalchemy_uri': utils.markdown(
"Refer to the "
"[SqlAlchemy docs]"
"(http://docs.sqlalchemy.org/en/rel_1_0/core/engines.html#"
"database-urls) "
"for more information on how to structure your URI.", True),
'expose_in_sqllab': _("Expose this DB in SQL Lab"),
'allow_run_sync': _(
"Allow users to run synchronous queries, this is the default "
"and should work well for queries that can be executed "
"within a web request scope (<~1 minute)"),
'allow_run_async': _(
"Allow users to run queries, against an async backend. "
"This assumes that you have a Celery worker setup as well "
"as a results backend."),
'allow_ctas': _("Allow CREATE TABLE AS option in SQL Lab"),
'allow_dml': _(
"Allow users to run non-SELECT statements "
"(UPDATE, DELETE, CREATE, ...) "
"in SQL Lab"),
'force_ctas_schema': _(
"When allowing CREATE TABLE AS option in SQL Lab, "
"this option forces the table to be created in this schema"),
'extra': utils.markdown(
"JSON string containing extra configuration elements. "
"The ``engine_params`` object gets unpacked into the "
"[sqlalchemy.create_engine]"
"(http://docs.sqlalchemy.org/en/latest/core/engines.html#"
"sqlalchemy.create_engine) call, while the ``metadata_params`` "
"gets unpacked into the [sqlalchemy.MetaData]"
"(http://docs.sqlalchemy.org/en/rel_1_0/core/metadata.html"
"#sqlalchemy.schema.MetaData) call. ", True),
}
label_columns = {
'expose_in_sqllab': _("Expose in SQL Lab"),
'allow_ctas': _("Allow CREATE TABLE AS"),
'allow_dml': _("Allow DML"),
'force_ctas_schema': _("CTAS Schema"),
'database_name': _("Database"),
'creator': _("Creator"),
'changed_on_': _("Last Changed"),
'sqlalchemy_uri': _("SQLAlchemy URI"),
'cache_timeout': _("Cache Timeout"),
'extra': _("Extra"),
}
def pre_add(self, db):
db.set_sqlalchemy_uri(db.sqlalchemy_uri)
security.merge_perm(sm, 'database_access', db.perm)
for schema in db.all_schema_names():
security.merge_perm(
sm, 'schema_access', utils.get_schema_perm(db, schema))
def pre_update(self, db):
self.pre_add(db)
appbuilder.add_link(
'Import Dashboards',
label=__("Import Dashboards"),
href='/superset/import_dashboards',
icon="fa-cloud-upload",
category='Manage',
category_label=__("Manage"),
category_icon='fa-wrench',)
appbuilder.add_view(
DatabaseView,
"Databases",
label=__("Databases"),
icon="fa-database",
category="Sources",
category_label=__("Sources"),
category_icon='fa-database',)
class DatabaseAsync(DatabaseView):
list_columns = [
'id', 'database_name',
'expose_in_sqllab', 'allow_ctas', 'force_ctas_schema',
'allow_run_async', 'allow_run_sync', 'allow_dml',
]
appbuilder.add_view_no_menu(DatabaseAsync)
class DatabaseTablesAsync(DatabaseView):
list_columns = ['id', 'all_table_names', 'all_schema_names']
appbuilder.add_view_no_menu(DatabaseTablesAsync)
class AccessRequestsModelView(SupersetModelView, DeleteMixin):
datamodel = SQLAInterface(DAR)
list_columns = [
'username', 'user_roles', 'datasource_link',
'roles_with_datasource', 'created_on']
order_columns = ['username', 'datasource_link']
base_order = ('changed_on', 'desc')
label_columns = {
'username': _("User"),
'user_roles': _("User Roles"),
'database': _("Database URL"),
'datasource_link': _("Datasource"),
'roles_with_datasource': _("Roles to grant"),
'created_on': _("Created On"),
}
appbuilder.add_view(
AccessRequestsModelView,
"Access requests",
label=__("Access requests"),
category="Security",
category_label=__("Security"),
icon='fa-table',)
class SliceModelView(SupersetModelView, DeleteMixin): # noqa
datamodel = SQLAInterface(models.Slice)
can_add = False
label_columns = {
'datasource_link': 'Datasource',
}
list_columns = [
'slice_link', 'viz_type', 'datasource_link', 'creator', 'modified']
edit_columns = [
'slice_name', 'description', 'viz_type', 'owners', 'dashboards',
'params', 'cache_timeout']
base_order = ('changed_on', 'desc')
description_columns = {
'description': Markup(
"The content here can be displayed as widget headers in the "
"dashboard view. Supports "
"<a href='https://daringfireball.net/projects/markdown/'>"
"markdown</a>"),
'params': _(
"These parameters are generated dynamically when clicking "
"the save or overwrite button in the explore view. This JSON "
"object is exposed here for reference and for power users who may "
"want to alter specific parameters."),
'cache_timeout': _(
"Duration (in seconds) of the caching timeout for this slice."
),
}
base_filters = [['id', SliceFilter, lambda: []]]
label_columns = {
'cache_timeout': _("Cache Timeout"),
'creator': _("Creator"),
'dashboards': _("Dashboards"),
'datasource_link': _("Datasource"),
'description': _("Description"),
'modified': _("Last Modified"),
'owners': _("Owners"),
'params': _("Parameters"),
'slice_link': _("Slice"),
'slice_name': _("Name"),
'table': _("Table"),
'viz_type': _("Visualization Type"),
}
def pre_update(self, obj):
check_ownership(obj)
def pre_delete(self, obj):
check_ownership(obj)
@expose('/add', methods=['GET', 'POST'])
@has_access
def add(self):
flash(__(
"To create a new slice, you can open a data source "
"through the `Sources` menu, or alter an existing slice "
"from the `Slices` menu"), "info")
return redirect('/superset/welcome')
appbuilder.add_view(
SliceModelView,
"Slices",
label=__("Slices"),
icon="fa-bar-chart",
category="",
category_icon='',)
class SliceAsync(SliceModelView): # noqa
list_columns = [
'slice_link', 'viz_type',
'creator', 'modified', 'icons']
label_columns = {
'icons': ' ',
'slice_link': _('Slice'),
}
appbuilder.add_view_no_menu(SliceAsync)
class SliceAddView(SliceModelView): # noqa
list_columns = [
'id', 'slice_name', 'slice_link', 'viz_type',
'owners', 'modified', 'changed_on']
appbuilder.add_view_no_menu(SliceAddView)
class DashboardModelView(SupersetModelView, DeleteMixin): # noqa
datamodel = SQLAInterface(models.Dashboard)
list_columns = ['dashboard_link', 'creator', 'modified']
edit_columns = [
'dashboard_title', 'slug', 'slices', 'owners', 'position_json', 'css',
'json_metadata']
show_columns = edit_columns + ['table_names']
add_columns = edit_columns
base_order = ('changed_on', 'desc')
description_columns = {
'position_json': _(
"This json object describes the positioning of the widgets in "
"the dashboard. It is dynamically generated when adjusting "
"the widgets size and positions by using drag & drop in "
"the dashboard view"),
'css': _(
"The css for individual dashboards can be altered here, or "
"in the dashboard view where changes are immediately "
"visible"),
'slug': _("To get a readable URL for your dashboard"),
'json_metadata': _(
"This JSON object is generated dynamically when clicking "
"the save or overwrite button in the dashboard view. It "
"is exposed here for reference and for power users who may "
"want to alter specific parameters."),
'owners': _("Owners is a list of users who can alter the dashboard."),
}
base_filters = [['slice', DashboardFilter, lambda: []]]
add_form_query_rel_fields = {
'slices': [['slices', SliceFilter, None]],
}
edit_form_query_rel_fields = add_form_query_rel_fields
label_columns = {
'dashboard_link': _("Dashboard"),
'dashboard_title': _("Title"),
'slug': _("Slug"),
'slices': _("Slices"),
'owners': _("Owners"),
'creator': _("Creator"),
'modified': _("Modified"),
'position_json': _("Position JSON"),
'css': _("CSS"),
'json_metadata': _("JSON Metadata"),
'table_names': _("Underlying Tables"),
}
def pre_add(self, obj):
obj.slug = obj.slug.strip() or None
if obj.slug:
obj.slug = obj.slug.replace(" ", "-")
obj.slug = re.sub(r'\W+', '', obj.slug)
if g.user not in obj.owners:
obj.owners.append(g.user)
utils.validate_json(obj.json_metadata)
utils.validate_json(obj.position_json)
def pre_update(self, obj):
check_ownership(obj)
self.pre_add(obj)
def pre_delete(self, obj):
check_ownership(obj)
@action("mulexport", "Export", "Export dashboards?", "fa-database")
def mulexport(self, items):
ids = ''.join('&id={}'.format(d.id) for d in items)
return redirect(
'/dashboardmodelview/export_dashboards_form?{}'.format(ids[1:]))
@expose("/export_dashboards_form")
def download_dashboards(self):
if request.args.get('action') == 'go':
ids = request.args.getlist('id')
return Response(
models.Dashboard.export_dashboards(ids),
headers=generate_download_headers("pickle"),
mimetype="application/text")
return self.render_template(
'superset/export_dashboards.html',
dashboards_url='/dashboardmodelview/list'
)
appbuilder.add_view(
DashboardModelView,
"Dashboards",
label=__("Dashboards"),
icon="fa-dashboard",
category='',
category_icon='',)
class DashboardModelViewAsync(DashboardModelView): # noqa
list_columns = ['dashboard_link', 'creator', 'modified', 'dashboard_title']
label_columns = {
'dashboard_link': 'Dashboard',
}
appbuilder.add_view_no_menu(DashboardModelViewAsync)
class LogModelView(SupersetModelView):
datamodel = SQLAInterface(models.Log)
list_columns = ('user', 'action', 'dttm')
edit_columns = ('user', 'action', 'dttm', 'json')
base_order = ('dttm', 'desc')
label_columns = {
'user': _("User"),
'action': _("Action"),
'dttm': _("dttm"),
'json': _("JSON"),
}
appbuilder.add_view(
LogModelView,
"Action Log",
label=__("Action Log"),
category="Security",
category_label=__("Security"),
icon="fa-list-ol")
@app.route('/health')
def health():
return "OK"
@app.route('/ping')
def ping():
return "OK"
class KV(BaseSupersetView):
"""Used for storing and retrieving key value pairs"""
@log_this
@expose("/store/", methods=['POST'])
def store(self):
try:
value = request.form.get('data')
obj = models.KeyValue(value=value)
db.session.add(obj)
db.session.commit()
except Exception as e:
return json_error_response(e)
return Response(
json.dumps({'id': obj.id}),
status=200)
@log_this
@expose("/<key_id>/", methods=['GET'])
def get_value(self, key_id):
kv = None
try:
kv = db.session.query(models.KeyValue).filter_by(id=key_id).one()
except Exception as e:
return json_error_response(e)
return Response(kv.value, status=200)
appbuilder.add_view_no_menu(KV)
class R(BaseSupersetView):
"""used for short urls"""
@log_this
@expose("/<url_id>")
def index(self, url_id):
url = db.session.query(models.Url).filter_by(id=url_id).first()
if url:
return redirect('/' + url.url)
else:
flash("URL to nowhere...", "danger")
return redirect('/')
@log_this
@expose("/shortner/", methods=['POST', 'GET'])
def shortner(self):
url = request.form.get('data')
obj = models.Url(url=url)
db.session.add(obj)
db.session.commit()
return("http://{request.headers[Host]}/r/{obj.id}".format(
request=request, obj=obj))
@expose("/msg/")
def msg(self):
"""Redirects to specified url while flash a message"""
flash(Markup(request.args.get("msg")), "info")
return redirect(request.args.get("url"))
appbuilder.add_view_no_menu(R)
class Superset(BaseSupersetView):
"""The base views for Superset!"""
@api
@has_access_api
@expose("/update_role/", methods=['POST'])
def update_role(self):
"""Assigns a list of found users to the given role."""
data = request.get_json(force=True)
gamma_role = sm.find_role('Gamma')
username_set = set()
user_data_dict = {}
for user_data in data['users']:
username = user_data['username']
if not username:
continue
user_data_dict[username] = user_data
username_set.add(username)
existing_users = db.session.query(sm.user_model).filter(
sm.user_model.username.in_(username_set)).all()
missing_users = username_set.difference(
set([u.username for u in existing_users]))
logging.info('Missing users: {}'.format(missing_users))
created_users = []
for username in missing_users:
user_data = user_data_dict[username]
user = sm.find_user(email=user_data['email'])
if not user:
logging.info("Adding user: {}.".format(user_data))
sm.add_user(
username=user_data['username'],
first_name=user_data['first_name'],
last_name=user_data['last_name'],
email=user_data['email'],
role=gamma_role,
)
sm.get_session.commit()
user = sm.find_user(username=user_data['username'])
existing_users.append(user)
created_users.append(user.username)
role_name = data['role_name']
role = sm.find_role(role_name)
role.user = existing_users
sm.get_session.commit()
return self.json_response({
'role': role_name,
'# missing users': len(missing_users),
'# granted': len(existing_users),
'created_users': created_users,
}, status=201)
def json_response(self, obj, status=200):
return Response(
json.dumps(obj, default=utils.json_int_dttm_ser),
status=status,
mimetype="application/json")
@has_access_api
@expose("/datasources/")
def datasources(self):
datasources = ConnectorRegistry.get_all_datasources(db.session)
datasources = [(str(o.id) + '__' + o.type, repr(o)) for o in datasources]
return self.json_response(datasources)
@has_access_api
@expose("/override_role_permissions/", methods=['POST'])
def override_role_permissions(self):
"""Updates the role with the give datasource permissions.
Permissions not in the request will be revoked. This endpoint should
be available to admins only. Expects JSON in the format:
{
'role_name': '{role_name}',
'database': [{
'datasource_type': '{table|druid}',
'name': '{database_name}',
'schema': [{
'name': '{schema_name}',
'datasources': ['{datasource name}, {datasource name}']
}]
}]
}
"""
data = request.get_json(force=True)
role_name = data['role_name']
databases = data['database']
db_ds_names = set()
for dbs in databases:
for schema in dbs['schema']:
for ds_name in schema['datasources']:
fullname = utils.get_datasource_full_name(
dbs['name'], ds_name, schema=schema['name'])
db_ds_names.add(fullname)
existing_datasources = ConnectorRegistry.get_all_datasources(db.session)
datasources = [
d for d in existing_datasources if d.full_name in db_ds_names]
role = sm.find_role(role_name)
# remove all permissions
role.permissions = []
# grant permissions to the list of datasources
granted_perms = []
for datasource in datasources:
view_menu_perm = sm.find_permission_view_menu(
view_menu_name=datasource.perm,
permission_name='datasource_access')
# prevent creating empty permissions
if view_menu_perm and view_menu_perm.view_menu:
role.permissions.append(view_menu_perm)
granted_perms.append(view_menu_perm.view_menu.name)
db.session.commit()
return self.json_response({
'granted': granted_perms,
'requested': list(db_ds_names)
}, status=201)
@log_this
@has_access
@expose("/request_access/")
def request_access(self):
datasources = set()
dashboard_id = request.args.get('dashboard_id')
if dashboard_id:
dash = (
db.session.query(models.Dashboard)
.filter_by(id=int(dashboard_id))
.one()
)
datasources |= dash.datasources
datasource_id = request.args.get('datasource_id')
datasource_type = request.args.get('datasource_type')
if datasource_id:
ds_class = ConnectorRegistry.sources.get(datasource_type)
datasource = (
db.session.query(ds_class)
.filter_by(id=int(datasource_id))
.one()
)
datasources.add(datasource)
if request.args.get('action') == 'go':
for datasource in datasources:
access_request = DAR(
datasource_id=datasource.id,
datasource_type=datasource.type)
db.session.add(access_request)
db.session.commit()
flash(__("Access was requested"), "info")
return redirect('/')
return self.render_template(
'superset/request_access.html',
datasources=datasources,
datasource_names=", ".join([o.name for o in datasources]),
)
@log_this
@has_access
@expose("/approve")
def approve(self):
def clean_fulfilled_requests(session):
for r in session.query(DAR).all():
datasource = ConnectorRegistry.get_datasource(
r.datasource_type, r.datasource_id, session)
user = sm.get_user_by_id(r.created_by_fk)
if not datasource or \
self.datasource_access(datasource, user):
# datasource does not exist anymore
session.delete(r)
session.commit()
datasource_type = request.args.get('datasource_type')
datasource_id = request.args.get('datasource_id')
created_by_username = request.args.get('created_by')
role_to_grant = request.args.get('role_to_grant')
role_to_extend = request.args.get('role_to_extend')
session = db.session
datasource = ConnectorRegistry.get_datasource(
datasource_type, datasource_id, session)
if not datasource:
flash(DATASOURCE_MISSING_ERR, "alert")
return json_error_response(DATASOURCE_MISSING_ERR)
requested_by = sm.find_user(username=created_by_username)
if not requested_by:
flash(USER_MISSING_ERR, "alert")
return json_error_response(USER_MISSING_ERR)
requests = (
session.query(DAR)
.filter(
DAR.datasource_id == datasource_id,
DAR.datasource_type == datasource_type,
DAR.created_by_fk == requested_by.id)
.all()
)
if not requests:
flash(ACCESS_REQUEST_MISSING_ERR, "alert")
return json_error_response(ACCESS_REQUEST_MISSING_ERR)
# check if you can approve
if self.all_datasource_access() or g.user.id == datasource.owner_id:
# can by done by admin only
if role_to_grant:
role = sm.find_role(role_to_grant)
requested_by.roles.append(role)
msg = __(
"%(user)s was granted the role %(role)s that gives access "
"to the %(datasource)s",
user=requested_by.username,
role=role_to_grant,
datasource=datasource.full_name)
utils.notify_user_about_perm_udate(
g.user, requested_by, role, datasource,
'email/role_granted.txt', app.config)
flash(msg, "info")
if role_to_extend:
perm_view = sm.find_permission_view_menu(
'email/datasource_access', datasource.perm)
role = sm.find_role(role_to_extend)
sm.add_permission_role(role, perm_view)
msg = __("Role %(r)s was extended to provide the access to "
"the datasource %(ds)s", r=role_to_extend,
ds=datasource.full_name)
utils.notify_user_about_perm_udate(
g.user, requested_by, role, datasource,
'email/role_extended.txt', app.config)
flash(msg, "info")
clean_fulfilled_requests(session)
else:
flash(__("You have no permission to approve this request"),
"danger")
return redirect('/accessrequestsmodelview/list/')
for r in requests:
session.delete(r)
session.commit()
return redirect('/accessrequestsmodelview/list/')
def get_form_data(self):
# get form data from url
if request.args.get("form_data"):
form_data = request.args.get("form_data")
elif request.form.get("form_data"):
# Supporting POST as well as get
form_data = request.form.get("form_data")
else:
form_data = '{}'
d = json.loads(form_data)
if request.args.get("viz_type"):
# Converting old URLs
d = cast_form_data(request.args)
return d
def get_viz(
self,
slice_id=None,
args=None,
datasource_type=None,
datasource_id=None):
if slice_id:
slc = (
db.session.query(models.Slice)
.filter_by(id=slice_id)
.one()
)
return slc.get_viz()
else:
form_data = self.get_form_data()
viz_type = form_data.get('viz_type', 'table')
datasource = ConnectorRegistry.get_datasource(
datasource_type, datasource_id, db.session)
viz_obj = viz.viz_types[viz_type](
datasource,
form_data=form_data,
)
return viz_obj
@has_access
@expose("/slice/<slice_id>/")
def slice(self, slice_id):
viz_obj = self.get_viz(slice_id)
endpoint = (
'/superset/explore/{}/{}?form_data={}'
.format(
viz_obj.datasource.type,
viz_obj.datasource.id,
json.dumps(viz_obj.form_data)
)
)
if request.args.get("standalone") == "true":
endpoint += '&standalone=true'
return redirect(endpoint)
@log_this
@has_access_api
@expose("/explore_json/<datasource_type>/<datasource_id>/")
def explore_json(self, datasource_type, datasource_id):
try:
viz_obj = self.get_viz(
datasource_type=datasource_type,
datasource_id=datasource_id,
args=request.args)
except Exception as e:
logging.exception(e)
return json_error_response(
utils.error_msg_from_exception(e),
stacktrace=traceback.format_exc())
if not self.datasource_access(viz_obj.datasource):
return json_error_response(DATASOURCE_ACCESS_ERR, status=404)
if request.args.get("csv") == "true":
return Response(
viz_obj.get_csv(),
status=200,
headers=generate_download_headers("csv"),
mimetype="application/csv")
if request.args.get("query") == "true":
try:
query_obj = viz_obj.query_obj()
if datasource_type == 'druid':
# only retrive first phase query for druid
query_obj['phase'] = 1
query = viz_obj.datasource.get_query_str(
datetime.now(), **query_obj)
except Exception as e:
return json_error_response(e)
return Response(
json.dumps({
'query': query,
'language': viz_obj.datasource.query_language,
}),
status=200,
mimetype="application/json")
payload = {}
try:
payload = viz_obj.get_payload(
force=request.args.get('force') == 'true')
except Exception as e:
logging.exception(e)
return json_error_response(utils.error_msg_from_exception(e))
status = 200
if payload.get('status') == QueryStatus.FAILED:
status = 400
return json_success(viz_obj.json_dumps(payload), status=status)
@expose("/import_dashboards", methods=['GET', 'POST'])
@log_this
def import_dashboards(self):
"""Overrides the dashboards using pickled instances from the file."""
f = request.files.get('file')
if request.method == 'POST' and f:
current_tt = int(time.time())
data = pickle.load(f)
# TODO: import DRUID datasources
for table in data['datasources']:
ds_class = ConnectorRegistry.sources.get(table.type)
ds_class.import_obj(table, import_time=current_tt)
db.session.commit()
for dashboard in data['dashboards']:
models.Dashboard.import_obj(
dashboard, import_time=current_tt)
db.session.commit()
return redirect('/dashboardmodelview/list/')
return self.render_template('superset/import_dashboards.html')
@log_this
@has_access
@expose("/explore/<datasource_type>/<datasource_id>/")
def explore(self, datasource_type, datasource_id):
form_data = self.get_form_data()
datasource_id = int(datasource_id)
viz_type = form_data.get("viz_type")
slice_id = form_data.get('slice_id')
user_id = g.user.get_id() if g.user else None
slc = None
if slice_id:
slc = db.session.query(models.Slice).filter_by(id=slice_id).first()
error_redirect = '/slicemodelview/list/'
datasource = (
db.session.query(ConnectorRegistry.sources[datasource_type])
.filter_by(id=datasource_id)
.one()
)
if not datasource:
flash(DATASOURCE_MISSING_ERR, "danger")
return redirect(error_redirect)