I need to do certain processing when a Scintilla editor first becomes 'dirty' before the document actually changes.
The SCN_SAVEPOINTLEFT notification seems like the obvious candidate, but unfortunately this is fired after the change that made the document dirty has occurred.
Looking through the other available notifications, SCN_MODIFIED also is fired after the change has happened (and the same is true of SCEN_CHANGE of course).
The best I can think of is to start macro recording in response to SCN_SAVEPOINTREACHED (i.e. when the document is saved or all changes are undone). Then when I detect the first change with SCN_MODIFIED, I stop recording, undo all changes until I get back to the save point, perform my custom processing (which happens to be modifying a date field in the document), then replay the recorded macros to restore the undone changes.
This seems horribly convoluted. Is there an easier way? (Maybe it would be simpler to create my own custom version of Scintilla with a SCN_BEFORECHANGE notification, but I'd prefer to avoid creating a fork. And a cursory glance through the source suggests that there are a great many points from where this notification would have to be sent, making it easy to miss some.)
Update: The real requirement was that when the user executes 'Undo' after first modifying the document, the 'automatic' edit and the user's first edit are not in the wrong order in the undo buffer. The simplest solution turned out to be, not to force the automatic update to be first, but to coalesce these two actions into a single undo action using SCI_BEGINUNDOACTION/SCI_ENDUNDOACTION. See my comment below on how I did this.
The SCN_MODIFIED notification does seem to fit your spec. The modificationType field provides information about what has been done, including:
SC_MOD_BEFOREINSERT 0x400 Text is about to be inserted into the document.
SC_MOD_BEFOREDELETE 0x800 Text is about to be deleted from the document.
Related
I want to make sure that every time I make a change to a document, a certain action is performed. For this I wanted to use OnBeforeStore or OnAfterSaveChanges.
Unfortunately, these two events are not triggered when I save a change via patch or add/delete an attachment.
We use the CQRS pattern and have several commands making changes to entities / collections. I need a central place to execute every change to a particular collection, no matter which command is used.
Is there such a thing in RavenDB?
There is no "central place" that track every change to collection.
About the OnAfterSaveChanges event, it should fire on those actions too.
https://issues.hibernatingrhinos.com/issue/RavenDB-13906
I've watched quite a few videos on YouTube and have a basic understanding of how to find user-exits (enhancements?) and implement them. However when I try to replicate what I've seen it doesn't appear to be working.
I'm looking to create a user-exit that would execute when a production order has been confirmed (closed/finished) via CO11N. Someone suggested that I put in a line of code "BREAK username." So that I could verify that my code was firing. Nothing breaks. I've tried putting in a message from code found on the internet
MESSAGE s208(00) WITH 'TEST'.
No message is shown. I've activated the include and the project. I've tried different exits/includes and no matter what I do, nothing seems to break or show a message.
Is there something simple I'm missing? I've tried CONFPI05 and CONFPM05.
CONFPI05 is for process orders. CONFPM05 is for plant maintenance orders. First you need to check which kind of order you use. I assume you use production orders. You should check User-Exit CONFPP05 than.
Anyway, I would recommend using BAdI WORKORDER_CONFIRM. Within this BAdI there are methods available where you can raise an error message.
From the BAdI documentation:
Note that in the methods, no system messages may be sent. The only
exceptions are the AT_SAVE and AT_CANCEL_CHECK methods. Within these
methods, a system message may be issued, but only if you trigger the
exception ERROR_WITH_MESSAGE (for AT_SAVE method) or NOT_ALLOWED (for
AT_CANCEL_CHECK method) at the same time.
Note also that within the methods, the "commit work" instruction may
not be carried out because this would lead to incorrect data in the
database.
I strongly recommend not to use MESSAGE statement in any User-Exit or BAdI implementation. The MESSAGE statement will implicit call a COMMIT WORK which could cause database inconsistencies (happens very often by the way).
One additional note. You should check using Checkpoint Groups instead of using BREAK-POINT or BREAK username directly.
I checked the documentation:
CONFPI05 to update your own data after saving the confirmation
In another documentation I found another warning:
In this customer enhancement it is strictly forbidden to send error messages or other messages because otherwise there is the danger that data will be inconsistent. SAP cannot be held responsible for this!!
This sounds like changes in update task. By default breakpoints in update task are not enabled.
Should your code be processed after you pushed save?
If yes, what you can try:
Set anywhere a breakpoint. Or try /h during data insertion.
In debug screen activate the update debugging:
Continue the process with F8.
Hopefully you stop at your break-point.
So I'm using CodeMirror, and I'd like a way to omit certain edits from the undo state. In particular, I've got a situation where I want one keystroke to
Replace a portion of the mirror text AND
Auto-indent the fresh region
Doing this naively would mean that using the keystroke, then hitting undo would leave the mirror containing the new text without the indentation. I'd like a single undo to restore the initial text rather than going to the unindented version of the replaced text.
The only API-supported approach seems to be doing a .getHistory call before the indent, followed by a .setHistory call immediately afterwards, but the docs imply that this is a bad idea. Specifically, the effects of this are undefined if the contents of the mirror changed between .getHistory and .setHistory calls, which is the whole point in this situation.
There's also an addToHistory flag in the text marking API, but it's only available marking rather than arbitrary edits like indentation.
Is there a good way to do what I'm looking for here?
Changes made within a single operation will result in only a single history event.
If arranging for a single operation isn't viable, the origin field of a change (settable as an argument to replaceRange and replaceSelection, and in other cases a little more awkwardly by registering a beforeChange event handler) determines the type of history-event-combination that CodeMirror does. If you assign an origin that starts with an asterisk (*) character, subsequent changes with the same origin will be combined. If the origin starts with a +, subsequent same-origin changes will be combined when they occur within options.historyEventDelay milliseconds.
I'm currently developing a DNN module. It would be nice if we were able to run custom code whenever a module is deleted from a page by the user, and also when a module gets restored from recycle bin.
I haven't found any examples on how this could be done, so I'm not sure if this is possible? Any ideas?
I am unaware of any event mechanism inside DNN where you could set your hooks. You could probably debug the DNN code and trace the call stack until you find a usable spot where you can inject some code (which would likely be destroyed after the next DNN update), or maybe detect a way that was intended to be used by the core team.
However, if a module is deleted from a page, the IsDeleted field in the Modules table is set to true. If it gets restored from the bin, it is again set to false.
You can use a TRIGGER in your Sql Server that fires when the Modules table is updated, checks if the update refers to an IsDeleted field, write stuff into a Notification table, and use Sql Query Notification based on SqlDependency to run some code (see http://www.codeproject.com/Articles/144344/Query-Notification-using-SqlDependency-and-SqlCach for an introduction).
Some steps to go, but it should work (and be less exhausting than climbing the Matterhorn :-) ).
There is absolutely hooks in DNN Platform (DotNetNuke) that a developer can attached C# code to.
While there isn't a turn key example that I can provide at the moment, check out the following:
https://github.com/dnnsoftware/Dnn.Platform/blob/c35fdc7fb75db0438f3b872ce4e279e3ea73e7c2/DNN%20Platform/Library/Entities/EventManager.cs
You are looking to hook onto the ModuleRemoved event by the sounds of it.
Here is an example for the user logging in that you could adapt to your event:
Does DNN fire an event when a user logs in?
I hope this helps in the future.
I want to track changes in a java source file in my eclipse plugin to update some references I keep of methods/variables/types if they are renamed.
I am interested in the IJavaElement before it was changed and how it is after the change.
I found
JavaCore.addElementChangedListener(/**/, ElementChangedEvent.POST_RECONCILE);
to obtain notifications of changes. The JavaElementDelta that the listener-event provide enables me to get the IJavaElement. Unfortunately, the notifications are difficult to handle.
For instance, if the user renames a method and pauses for a fraction of a second an event is fired and once the user finish typing the new name a further event is fired. That makes it necessary to track all those (incomplete) changes. That is cumbersome.
Is there a better way to obtain the before-after name an IJavaElement in a source file?