本文整理汇总了Python中core.db.connection.DataHubConnection.list_views方法的典型用法代码示例。如果您正苦于以下问题：Python DataHubConnection.list_views方法的具体用法？Python DataHubConnection.list_views怎么用？Python DataHubConnection.list_views使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类core.db.connection.DataHubConnection的用法示例。
在下文中一共展示了DataHubConnection.list_views方法的3个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Python代码示例。
示例1: __init__
# 需要导入模块: from core.db.connection import DataHubConnection [as 别名]
# 或者: from core.db.connection.DataHubConnection import list_views [as 别名]
#.........这里部分代码省略.........
raise ValueError("table cannot be empty.")
return self.user_con.describe_table(repo, table, detail)
def list_table_permissions(self, repo, table):
"""
Lists the current user's permissions on a table.
Default return includes column names and types only.
Returns empty list on insufficient permissions.
Raises ValueError if repo or table are missing or the empty string.
"""
if repo.strip() in ['', None]:
raise ValueError("repo cannot be empty.")
if table.strip() in ['', None]:
raise ValueError("table cannot be empty.")
return self.user_con.list_table_permissions(repo, table)
def create_view(self, repo, view, sql):
"""
Creates a view in the current repo_base from a given query.
Returns True on success.
Raises ValueError if repo or view have invalid characters.
Raises ProgrammingError if the repo doesn't exist.
Raises ProgrammingError if the view already exists.
Raises ProgrammingError if the query has syntax errors.
Raises PermissionDenied on insufficient permissions.
"""
return self.user_con.create_view(
repo=repo, view=view, sql=sql)
def list_views(self, repo):
"""
Lists the views in a repo.
Returns a list of view names.
Raises LookupError on insufficient permissions or if the repo doesn't
exist.
"""
return sorted(self.user_con.list_views(repo=repo))
def describe_view(self, repo, view, detail=False):
"""
Lists a view's schema. If detail=True, provides all schema info.
Default return includes column names and types only.
Returns empty list on insufficient permissions.
Raises ValueError if repo or table are missing or the empty string.
"""
if repo.strip() in ['', None]:
raise ValueError("repo cannot be empty.")
if view.strip() in ['', None]:
raise ValueError("view cannot be empty.")
return self.user_con.describe_view(repo, view, detail)
def delete_view(self, repo, view, force=False):
"""
Deletes a view.
Set force=True to drop dependent objects (e.g. other views).
Return True on success.示例2: __init__
# 需要导入模块: from core.db.connection import DataHubConnection [as 别名]
# 或者: from core.db.connection.DataHubConnection import list_views [as 别名]
class DataHubManager:
def __init__(self, user, repo_base=None, is_app=False):
username = None
password = None
if is_app:
app = App.objects.get(app_id=user)
username = app.app_id
password = hashlib.sha1(app.app_token).hexdigest()
else:
user = User.objects.get(username=user)
username = user.username
password = user.password
if not repo_base:
repo_base = username
self.username = username
self.repo_base = repo_base
self.user_con = DataHubConnection(
user=username,
repo_base=repo_base,
password=password)
''' Basic Operations. '''
def change_repo_base(self, repo_base):
"""Changes the repo base and resets the DB connection."""
self.user_con.change_repo_base(repo_base=repo_base)
def close_connection(self):
self.user_con.close()
def create_repo(self, repo):
return self.user_con.create_repo(repo=repo)
def list_repos(self):
return self.user_con.list_repos()
def list_collaborator_repos(self):
user = User.objects.get(username=self.username)
return Collaborator.objects.filter(user=user)
def delete_repo(self, repo, force=False):
# Only a repo owner can delete repos.
if self.repo_base != self.username:
raise PermissionDenied(
'Access denied. Missing required privileges')
# remove related collaborator objects
Collaborator.objects.filter(repo_name=repo).delete()
# finally, delete the actual schema
res = self.user_con.delete_repo(repo=repo, force=force)
DataHubManager.delete_user_data_folder(self.repo_base, repo)
return res
def list_tables(self, repo):
return self.user_con.list_tables(repo=repo)
def list_views(self, repo):
return self.user_con.list_views(repo=repo)
def delete_table(self, repo, table, force=False):
return self.user_con.delete_table(repo=repo, table=table, force=force)
def get_schema(self, repo, table):
return self.user_con.get_schema(repo=repo, table=table)
def explain_query(self, query):
return self.user_con.explain_query(query)
def execute_sql(self, query, params=None):
return self.user_con.execute_sql(query=query, params=params)
def add_collaborator(self, repo, collaborator, privileges):
"""
Grants a user or app privileges on a repo.
- collaborator must match an existing User's username or an existing
App's app_id.
- privileges must be an array of SQL privileges as strings.
"""
res = DataHubManager.has_repo_privilege(
self.username, self.repo_base, repo, 'USAGE')
if not res:
raise PermissionDenied(
'Access denied. Missing required privileges')
# you can't add yourself as a collaborator
if self.username == collaborator:
raise Exception(
"Can't add a repository's owner as a collaborator.")
try:
app = App.objects.get(app_id=collaborator)
collaborator_obj, _ = Collaborator.objects.get_or_create(
app=app, repo_name=repo, repo_base=self.repo_base)
#.........这里部分代码省略.........
示例3: __init__
# 需要导入模块: from core.db.connection import DataHubConnection [as 别名]
# 或者: from core.db.connection.DataHubConnection import list_views [as 别名]
class DataHubManager:
def __init__(self, user, repo_base=None, is_app=False):
username = None
password = None
if is_app:
app = App.objects.get(app_id=user)
username = app.app_id
password = hashlib.sha1(app.app_token).hexdigest()
else:
user = User.objects.get(username=user)
username = user.username
password = user.password
self.user_con = DataHubConnection(user=username, repo_base=repo_base, password=password)
""" Basic Operations. """
def reset_connection(self, repo_base):
self.user_con.reset_connection(repo_base=repo_base)
def close_connection(self):
self.user_con.close()
def create_repo(self, repo):
return self.user_con.create_repo(repo=repo)
def list_repos(self):
return self.user_con.list_repos()
def delete_repo(self, repo, force=False):
return self.user_con.delete_repo(repo=repo, force=force)
def list_tables(self, repo):
return self.user_con.list_tables(repo=repo)
def list_views(self, repo):
return self.user_con.list_views(repo=repo)
def get_schema(self, table):
return self.user_con.get_schema(table=table)
def execute_sql(self, query, params=None):
return self.user_con.execute_sql(query=query, params=params)
def add_collaborator(self, repo, username, privileges, auto_in_future=True):
return self.user_con.add_collaborator(
repo=repo, username=username, privileges=privileges, auto_in_future=auto_in_future
)
def delete_collaborator(self, repo, username):
return self.user_con.delete_collaborator(repo=repo, username=username)
"""
The following methods run in superuser mode only
"""
""" User/Role Management """
@staticmethod
def create_user(username, password, create_db=True):
superuser_con = DataHubConnection(
user=settings.DATABASES["default"]["USER"], password=settings.DATABASES["default"]["USER"]
)
return superuser_con.create_user(username=username, password=password, create_db=create_db)
@staticmethod
def remove_user(username):
superuser_con = DataHubConnection(
user=settings.DATABASES["default"]["USER"], password=settings.DATABASES["default"]["USER"]
)
return superuser_con.remove_user(username=username)
@staticmethod
def change_password(username, password):
superuser_con = DataHubConnection(
user=settings.DATABASES["default"]["USER"], password=settings.DATABASES["default"]["USER"]
)
return superuser_con.change_password(username=username, password=password)
""" Import/Export Files """
@staticmethod
def import_file(
repo_base,
table_name,
file_path,
file_format="CSV",
delimiter=",",
header=True,
encoding="ISO-8859-1",
quote_character='"',
):
superuser_con = DataHubConnection(
user=settings.DATABASES["default"]["USER"],
password=settings.DATABASES["default"]["USER"],
repo_base=repo_base,
)
return superuser_con.import_file(
table_name=table_name,
#.........这里部分代码省略.........