Article on Predicate

[mutlu_inek]

Dear Commit-digest community and dear Jaroslaw,

I proofread and corrected the Predicate article. Not every single quirk in its language has been fixed, but the article is quite readable now. There would be an advantage to reorganizing the article so that the argumentative structure is more intuitive, but that would take more work and I am not sure whether it would be welcome. I made tons of changes already. Regarding its language, I would say that it is nearly ready to go. There is one passage that remains unclear to me, however. I would be very happy, if someone could provide insights into what it is supposed to mean:

Paragraph 9:
"These are also built on top of KexiDB and that validated values of the abstraction layer in even for the client/server processing or even 3-tier architectures. During Kexi 1.1 times, Kexi offered a plugin running its own web server..."

The remaining issue with this article is that I am not sure whether the history of the project it represented accurately. In the beginning, it is claimed that KexiDB 1 supported MySQL only, and that the introduction of SQLite prompted its rewrite, which resulted (together with a porting to Qt4) in KexiDB 2. Later on, however, it is mentioned that there was support for many more databases in KexiDB 1. I believe that the latter is correct, i.e. that KexiDB was the result of the need to support many DBs. The support for all but MySQL and SQLite, however, was dropped with the port to Qt4 (i.e. with creating KexiDB 2) and this is still the case for Predicate. If this is indeed correct, I will fix the article accordingly.

Cheers,

mutlu