Created attachment 41256 [details]
Base - Find dialog
Base already has a "Find" dialog, to search for data in a table. (see scr-shot)
A feature we are missing really hard is "Find and replace", something Calc for example has.
It would be great if the "Find" - functionality in Base
could be extend with "Replace" functionality.
That way it would be possible to:
- find and replace entire fields (f.e. "train" in "Trains")
- find and replace parts of fields (f.e. in a date field, replace all "2010" with "2011", without touching the day or the month)
Created attachment 41257 [details]
Calc - Find and replace dialog
Added to the list of EasyHacks.
[This is an automated message.]
This bug was filed before the changes to Bugzilla on 2011-10-16. Thus it
started right out as NEW without ever being explicitly confirmed. The bug is
changed to state NEEDINFO for this reason. To move this bug from NEEDINFO back
to NEW please check if the bug still persists with the 3.5.0 beta1 or beta2 prereleases.
Details on how to test the 3.5.0 beta1 can be found at:
more detail on this bulk operation: http://nabble.documentfoundation.org/RFC-Operation-Spamzilla-tp3607474p3607474.html
An EasyHack should have been checked by developers and thus is confirmed regardless of age. Moving back to NEW from NEEDINFO again. Sorry for the hassle.
Deleted "Easyhack" from summary.
This issue was created at the time for LibreOffice 3.3.0 RC1.
I have tested and can confirm this issue (enhancement) is still valid for
LibreOffice 3.5.4 Build_ID 350m1(Build2).
I read the release notes for 3.6 and couldn't find any info regarding Base. So
the issue should still be valid.
It could be a problem with foreign-keys. Same content at different positions could be changed or could not.
Working with Base is often working in server-based databases. The database has to confirm every changing.
There has nothing happened with this report since the beginning of LO. It must be declared better so that more people could say "A good idea." or "Impossible with databases".
The first version this enhancement is missing is LO 3.3.0. This version has to be shown in the bug-report. I have changed the version to LO 3.3.0 Beta2.
Currently I can't see that EasyHck has been confirmed by a developer due to current proceeding
I agree with the comment of email@example.com (comment#7) : "It could be a problem with foreign-keys.". I think that a find-replace function in a table of a relational database is not the same thing that a find-replace in a Calc sheet and it could be dangerous for the integrity of the database.
The modification of fields in a table must be done with SQL UPDATE statement.
*** Bug 46576 has been marked as a duplicate of this bug. ***
on GE-user-ML (http://listarchives.libreoffice.org/de/users/msg10921.html) is been discussed this bugreport. See you any possibility to solve the problem?
In order to limit the confusion between ProposedEasyHack and EasyHack and to make queries much easier we are changing ProposedEasyHack to NeedsDevEval.
Thank you and apologies for the noise
Please read this message in its entirety before responding.
Your bug was confirmed at least 1 year ago and has not had any activity on it for over a year. Your bug is still set to NEW which means that it is open and confirmed. It would be nice to have the bug confirmed on a newer version than the version reported in the original report to know that the bug is still present -- sometimes a bug is inadvertently fixed over time and just never closed.
If you have time please do the following:
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(In reply to QA Administrators from comment #13)
> If you have time please do the following:
> 1) Test to see if the bug is still present on a currently supported version
> of LibreOffice (preferably 4.2 or newer).
There has nothing been changed in the dialog. So this ask for an enhancement also exists in LO 126.96.36.199alpha0+.
Adding self to CC if not already on
Migrating Whiteboard tags to Keywords: (needsDevEval)
I would like to work on this.
Created attachment 124057 [details]
Calc - Find & Replace Dialog
Current state of the Find & Replace dialog in Calc. (As of LO 188.8.131.52.alpha0)
Created attachment 124058 [details]
Base - Record Search Dialog
Current state of Find (Record Search) dialog in Base. (As of 184.108.40.206.alpha0)
Waiting for devEval from a core developer, as suggested by janIV on irc. (Sorry for the comment spam)
Here's your devEval:
I expect this to be definitely doable. Qua desirability, I see use cases for that. Qua risks, e.g. for foreign keys, my philosophy is to do what the user asks, so if they want to shoot themselves in the foot and screw up their foreign keys by running this on a foreign key field, let them have it. Depending the the DB setup, the DB will actually refuse to do the update.
You need to add a "replace" field to the "search" dialog, as well as the "replace" and "replace all". Then the code when "replace all" is hit will look like:
// frm is the Form object (not document) where the search/replace is done
// colNum is the column number in which we search
Reference<XResultSet> rs = frm
OUString colValue = rs.getString(colNum);
Adapt the code for the case where "all fields" was chosen, for the case where "replace" instead of "replace all" was chosen, etc.
Created attachment 124069 [details]
Suggested Find & Replace Dialog for Base
I have added a GtkFrame for "Replace" part, and moved the "Search" button to the Search frame, and renamed to "Find Next". How does it look?
Hi, it was quite some years ago I filed this feature request. Happy to see someone took ownership, thx !
About the foreign keys: yes, a find & replace could try to enter data in a field that doesn't comply with a foreign key.
There are other possible problems as well: trying to find "123" and replace it by "train" in a numerical field.
But that is not a big problem. Most of the time people (also I) want to:
- change content of text-fields
- fields which do not contain foreign keys
If something does go wrong, usually the underlying database produces an error which could then be shown in Base.
The only thing we should think about, is what to do if an error is produced.
We could execute the find and replace in a transaction
=> if everything works out fine, all the changes are committed => success, confirmation dialog
=> if an error is thrown by the DB, we show the error in Base, the transaction is roll backed, no changes are committed => no succes, no data changes => error dialog with database error
But maybe there is even a better way.
You asked how your new screen mock-up looked: fine by me. Fits perfectly in the existing dialog.
Good idea you added "Set field content to NULL", that is going to be a useful one !
If at a certain time you could use help to test the new dialog, you can always contact me. If you can help me to install/run your new code, I am willing to test. If you can tell me which logfiles etc you would like as a result, I will provide them. I always use Base in conjunction with PostgreSQL, so I can test that combination.
Thanks for your effort.
A foreign key in a relationship/table (T1) is a primary key in another relationship/table (T2). Which rule will be used in the case where the new value of the foreign key in T1 is not a primary key in T2?
Knowing that the value of the new foreign key in T1 must exist as a valid value (one of the primary key values) in T2, or must be equal to a null value, will a new record be created in T2 to respect the rules of referential integrity?
'Find &replace' of a primary key will be allowed? If allowed, the update of the value of the primary key must be done according with the update rules defined for the database (Tools > Relations).
In my view, 'Find & Replace' operation is not a correct Relational DataBase Management :-)) If implemented, this 'Find & Replace' operation should only be allowed on the tables without constraints of referential integrity.
(In reply to ribotb from comment #25)
> A foreign key in a relationship/table (T1) is a primary key in another
> relationship/table (T2). Which rule will be used in the case where the new
> value of the foreign key in T1 is not a primary key in T2?
LibreOffice will not do anything different in that case. The database engine will raise an error.
> Knowing that the value of the new foreign key in T1 must exist as a valid
> value (one of the primary key values) in T2, or must be equal to a null
> value, will a new record be created in T2 to respect the rules of
> referential integrity?
> 'Find &replace' of a primary key will be allowed?
> If allowed, the update of
> the value of the primary key must be done according with the update rules
> defined for the database (Tools > Relations).
Again, LibreOffice will not do anything different in that case. The database engine will either cascaded the update (if that relation is configured like that), or raise an error.
> In my view, 'Find & Replace' operation is not a correct Relational DataBase
> Management :-))
Not always, but also not never.
> If implemented, this 'Find & Replace' operation should only
> be allowed on the tables without constraints of referential integrity.
LibreOffice should not try to guess when it will work or make sense. The user asks for it, do it. If it fails, show the error message. If it corrupts the data, the user asked for it. After all she/she could have done the same manually.
OK. I thought and I was worried that the 'Find & Replace' operation is performed OUT of the database engine.
Thanks for these explanations.
A polite ping, still working on this patch?
(In reply to jan iversen from comment #28)
> A polite ping, still working on this patch?
Got interrupted by some other task, but still working on this.