Turns out using the config file isn't a good idea if users copy config.py to config_local.py, as it prevents upgrades to the database. This has the added side-effect of simplifying future changes, as you only need to edit 2 files to modify the config DB now, not 3.
slower system - user may need to set the value to some higher value.
This value decide - for how long SQLITE operation will wait, before
throwing an operation timeout error because of the locked database.
Fixes#1329
A distro can now install a config_distro.py file alongside config.py
in which distro-specific configuration settings can be set, overriding
those in config.py. User settings in config_local.py will override
all other settings. This is useful to allow packagers to config
settings like the doc path, that may be specific to RPMs or Wheels
etc.
inaccessible.
In stand (without threaded) mode, flask application is not able to
process more than one request at a time. Hence - even the client
(browser) send multiple request, when connecting the server (which is
inaccessible), rest of operations get blocked, as making the connection
with the database server is blocking operation.
In order to fix the issue, we're starting the application with thread
support, in which it will create a separate thread of each request.
We will be using the external utilities like pg_dump, pg_dumpall,
pg_restore in background. pgAdmin 4 can be run as a CGI script, hence -
it is not good idea to run those utility in a controlled environment.
The process executor will run them in background, and we will execute
the process executor in detached mode.
Now that - the process executor runs in detached mode, we need an
observer, which will look at the status of the processes. It also reads
output, and error logs on demand.
Thanks - Surinder for helping in some of the UI changes.
selection, creation, upload/download files/directories resides on the
server side.
This will be useful for file selection/creation for different server
side utilites like pg_dump, pg_dumpall, pg_restore.
While accessing the configuration database from multiple session, it
results in to the error - OperationError, because - sqlite locks all the
database, and does not allow to access it simultaneously. We added the
timeout to give some time window for accessing it simultaneously.
server connection.
The BaseDriver and BaseConnection are two abstract classes, which allows
us to replace the existing driver with the currently used. The current
implementation supports to connect the PostgreSQL and Postgres Plus
Advanced Server using the psycopg2 driver.
(lazy loading) using the require.js. This allows us to load the
javascript required for any node, only when it was loaded in the browser
tree. Also, introduced the mechanism to show/edit/create of any node in
a tab panel (wcDocker.Panel).
This allows us to update the configuration database schema as needed,
and use the setup script to update it to the current version.
NOTE: Existing databases will need to be recreated once following
this commit. It doesn't seem worth handling the "upgrade from v0"
case when I'm probably the only active developer right now.
Dave Page
lambda
Navnath Gadakh
Ashesh Vashi
Murtuza Zabuawala
Harshal Dhumal
Neel Patel