Made backend changes for:
* Taking care of the connection status in the psycopg2 driver. And, when
the connection is lost, it throws a exception with 503 http status
message, and connection lost information in it.
* Allowing the flask application to propagate the exceptions even in the
release mode.
* Utilising the existing password (while reconnection, if not
disconnected explicitly).
* Introduced a new ajax response message 'service_unavailable' (http
status code: 503), which suggests temporary service unavailable.
Client (front-end) changes:
* To handle the connection lost of a database server for different
operations by generating proper events, and handle them properly.
Removed the connection status check code from different nodes, so that
- it generates the proper exception, when accessing the non-alive
connection.
Fixes#1387
return correct information from a script, but works well on interactive
shell. Used a more proper check for Python > 2 instead of the current
implementation.
Thanks Vishal for the report.
children node. This implementation will allow to add new nodes at server
level without modifying the dashboard code. I found the issue during the
pgAgent Jobs node implementation.
optimized to work from multiple threads. It has too many frequent
transaction from multiple threads, and that tends to result into the
'database is locked' error of sqlite.
With the new implemenation, we're using the caching mechanism, which
keep the data in the memory all the time, and saves it on request
completion, and loads it only for the first time. Also, it will storage
the data using pickle, which will be faster than accessing sqlite.
Fixes#1329
PYTHONPATH) to run the runtime with the virtual environment properly.
And, also allow to use the python interpreter to be used with the
background process modules.
- Add binary directory of the virtual environment to PATH environment
variable.
- Add lib, dynamic libraries (python specific), and site-package
directories of the virtual environment in the PYTHONPATH environment
variable.
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
different resize event callbacks for a particular dialog.
This function needs to be executed from the 'build' function of any of
the alertify dialog. Refs #1358
This version includes the feature request about invoking the callbacks
for different resize events. It will allows us to adjust the layout of
the dialogs based on its width, just like we've in the panels.
when no of records in a page is set to 0 (or, less than 0). So that -
we do not loose CSS applied on the children DOM Elements dependent of
the original class.
This was regression of commit-id:
f9393aee44
We were loosing the formatting under the grid table due to this change.
As we convert the binary password to string during storing the
connection information, we also need to convert it back to byte-arrays
during restoring the connections.
Hence - decode the passowrd using 'utf-8' encoding during storing the
connection information, and encode it during restoring the connections.
* Do not need to translate an empty string. (that results into the
translation header inclusion in the javacript module).
* String.prototype.StartsWith is not an well received function, it has
not been available in the QWebkit for linux.
* Hide the security tab for the objects under the catalog schema.
Patched by Surinder Kumar, vastly improved by me.
* Make the securtiy label across all the nodes, using the same backbone
model across the nodes, and make changes in the backend code for the
same.
Changed its colour for better attendtion.
Reduced the margin-bottom for the backform-tab, so that - we can see the
control well in the properties dialog.
'postgis_tiger_geocoder'.
Current implementation changes the schema name, whenever we chance the
name, which is wrong. We should have not change the schema for this
event.
Thanks Fahar Abbas for reporting.
operation like backup, restore, etc within it.
Also:
* improvised the color combination of the background process logger.
* Removed an unnecessary print statement from the
get_storage_directory(..) function, also return None if STORAGE_DIR
is set to None.
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.
into an error, and does not call the callback - 'success/fail'
internally.
And, that will not close the property dialog in those cases.
Reported by Harshal Dhumal.
server.
Current implementation keeps the cursor object in the 'g' (current
request context) object identified by the connection-id.
But - it fails to identify a different connection object request, when
we have same database name in different database server, it does not
able to identify it as separate request, Hence - now we will use
server-id qualified identifier for the same object.
Thanks Neel Patel for pointing out the issue.
There are times, a module is loaded multiple times, and returns same set
of CSS files mulitple times, in order to avoid loading the same file
multiple times, we will create a set out of the list of CSS files.
required by its javascript module.
This will allow us to load the javascript modules as a static file, and
not as a Jinja2 template. This will increase the load time, as it will
decrease number of templates to be processed during loading those
javascripts.
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.
will always have latest data related to that type of node. Also, fixed
the cache_level for different node types.
This commit also contains fixes for the following issue:
* In extension module - use the 'node-list-by-name' instead of using a
custom 'node-ajax-options' control, and removed redundant template
schemas from it.
* When we tries to destroy the select2 object from
Select2Cell/Select2Control while releasing the properties view,
sometimes select2 can not find the instance related it for some
unknown reason. Hence - before removing it we will check for manual
instance existance using $.data('select2').
* When we traverse through the browser tree nodes very quickly, it tries
to remove the object before it gets created completely, and results
into an exception.
* Icon in the select2 drop down list was not visible due to some CSS
issues.
Apart of that, we will generate two new browser events -
'pgadmin-node:created:<NODE-TYPE>', 'pgadmin-node:updated:<NODE-TYPE>'
whenever a new node is created, or an existing node will be updated.
Introduced a class 'noclose'. Then - menu-item having this class will
not propograte the events to its parent, hence - it will not be closed.
Some of the CSS applicable only to the immediate buttons only, and not
the grand-children.
DriverRegistry is executed second time.
Also, initialize the driver before registering different blueprints,
which uses those driver inside them.
Thanks Khushboo for reporting the issue.
Also, remove the CodeMirror object for better clean up process.
When a SQL control/tab is rendered in a hidden element, it does not
render really well. Because - it rely on the height, and width of the
container to count the gutten position, and margin, and other elements.
Hence - whenever the tab, panel becomes visible, we will refresh the
control.
aciTree.
Also - fixed few CSS specifically for the preferences dialog.
Returning the sorted preferences from the server, so that - it lists
down in correct order.
due to internal 'set' function call from the internal 'reset' function.
We will stop the session management, before doing any clean up for
ignoring such events.
Select2 does not allow to scroll any of the parent container once it was
opened, and if it was not properly closed.
Also, resolved an issue - existing selection was not working, while
re-rendering the Select2Cell.
on the object everytime, it hits the buttons, and the callback functions
are being executed. The original implementation was not using the same
panel, when it was recalled from other function. And, results into
unexpected behaviour like not able to work with Edit object again.
Thanks Murtuza for reporting the issue.
Ashesh Vashi