Improved documentation of normalized classes and changelog entry

[clsql.git] / ChangeLog

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+2012-11-20 Russ Tyndall <russ@acceleration.net>
+       ## Large refactoring of sql/oodml.lisp and surrounding code
+       * cleaned up update-records-from-* to utilize a single codepath
+         previously there was much duplicate code
+       * tried to further unify direct/effective slot-defs
+       * cleaned up much of the normalized classes code to be more
+         consistent in how it operated, and the code it used (less
+         copy/paste more functions)
+       * tried to standardize iteration a bit, previously almost all
+         of the iteration constructs in CL were used. Tried to
+         standardize on loop for readability / cohesiveness
+       * made functions to more easily look up particular slots, since
+         this was being done differently in each function
+       * added more doc-strings and updated documentation about
+         normalized classes
+       * inner-joins that are referenced in where clauses are no longer
+         added to the select table list (since they are also referenced
+         in the join position and this led to sql errors)
+       * collect-table-references methods added for sql-ident-table and
+         list
+
+       ## Semantic changes
+       * disallow where-less updates from objects (ie cannot call
+          update-records-from* with a keyless object)
+       * ordered-class-direct-slots now returns direct-slot-definitions
+         instead of effective-slot-definitions (as per name)
+       * direct-slot-definitions now contain the db-info hash table (same
+         as effective slots)
+       * removed this-class arg from update-instance-from-records - used to
+         be used for normalized code, no longer needed for that.
+       * find-all - bug fixes in table references, previously where clauses
+         surrounded by a list would have none of their references added to
+         the select. This was being exploited by certain code paths.  Now
+         all where clauses are searched
+         - No longer includes order-by and distinct as columns in the select
+           list.  The values seemed to be ignored in every code path and distinct
+           seemed to be intended to be used as a boolean anyway
+
+
 2012-11-20  Nathan Bird  <nathan@acceleration.net>
 
        * update-objects-joins - changed the default of slot from t (which