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92 Commits

Author SHA1 Message Date
stronk7
a7a7fa8306 Fixing typo causing purge of accelerator cache not working. MDL-9349 
Merged from MOODLE_18_STABLE
 2007-04-15 11:11:48 +00:00
skodak
3ab00a0f6d fixed warning with undefined rcache during install 2007-01-30 09:11:19 +00:00
stronk7
d3fca5cba8 nothing interesting, just a comment. 2007-01-30 00:22:21 +00:00
stronk7
1e15c0fdad Added Oracle DIRTY HACK to both rs_fetchXX functions. 
Detecting of EOF in rs_fetch_record()
Big improvement of rs_fetch_next_record() by using FethRow()
with speeds near native fields[]. MDL-8134

Merged from MOODLE_17_STABLE
 2007-01-28 23:15:16 +00:00
stronk7
d9e10456ba Initial commit of the new rs_XXX() functions to fetch, advance and close 
ADOdb recordsets in a standard way. Not finished yet but I need them in CVS.
MDL-8134

Merged from MOODLE_17_STABLE
 2007-01-28 20:14:09 +00:00
stronk7
3e7dab97e7 And finally I've found the annoying bug that was causing Oracle to 
execute strange SQL statements! Argh! Now I can go to sleep...
 2007-01-28 01:07:52 +00:00
stronk7
ad88038fdb Fixing silly (like me) typo. 2007-01-27 23:39:57 +00:00
stronk7
358b1e9359 Oracle PL/SQL blocks can end by ";". Prevent that to be trimmed. 2007-01-27 23:37:22 +00:00
stronk7
db21b7a28c Adding two helper functions and modify upgrade to 
work properly under MSSQL and Oracle. MDL-8303

Added one simple hack to execute_sql() in order
to avoid and debug about trailing ;
 2007-01-26 21:27:44 +00:00
martinlanghoff
bb931a61c6 rcache: cleanup, upgrade path, config options (MDL-8163) 
record cache and caching schemes get a little cleanup, faster
if()s and a nice set of config options. Users who've been using
the internal cache get a nice upgrade too.
 2007-01-14 23:02:13 +00:00
stronk7
1d5c40048a Moving set_dbfamily() from dmllib.php to setuplib.php as it's 
needed in early stages and we don't want the installer to
depend of dmllib.
 2007-01-13 10:44:58 +00:00
stronk7
da340978d5 Need to return the value too, to use it sometimes. 2007-01-13 00:07:40 +00:00
stronk7
d847d4027b Now set_dbfamily() will work properly when invoked from install. 2007-01-12 23:52:23 +00:00
stronk7
c672870f8e Introducing CFG->dbfamily and create a setter function for it 
(to be able to use families at install). MDL-7061
 2007-01-12 23:44:00 +00:00
stronk7
82372b2c64 Introducing iPhone support for Moodle. B-) 
Nah, just introducing $CFG->dbfamily. MDL-7061 :-D
 2007-01-10 16:31:40 +00:00
martinlanghoff
02d3b34a8e rcache_getforfill() - better phpdoc 2006-12-27 22:55:12 +00:00
martinlanghoff
3530015874 rcache functions -- use a saner memory cache API 
Push into the $MCACHE object
 - dealing with getforfill() nuances
 - dealing with moodle-host prefixes
 2006-12-27 22:46:31 +00:00
martinlanghoff
ec9fe5cf6f rcache_set() and rcache_table_unset(): use a configurable TTL 2006-12-27 22:45:47 +00:00
martinlanghoff
c96a4a46d5 rcache_* calls - flesh out logic and use $MCACHE if available 
- move from $CFG->enablerecordcache <count> to $CFG->rcache <type>

 - if $CFG->rcache === 'internal' use the cache array
   otherwise, attempt to use $MCACHE

 - implement and use rcache_getforfill() to catch thundering herds

 - the cache lifetime is hardcoded to 2s until we understand better the
   possible race conditions against updates that are not happening via
   update_record() / delete_record()
 2006-12-27 22:40:38 +00:00
martinlanghoff
6c2f585f85 dmllib: introducing the rcache_* functions for record cache handling 
Abstracted Sam's initial work with $record_cache into a series of functions
that abstract things _just enough_ that we can use an internal
in-memory-array implementation or something that is shared across
processes, like memcached or the turckmmcache/eaccelerator caches.

Also
- added hit/miss stats tracking and reporting
- removed max entries limiting as it was buggy - var names mismatches
  and not counting unset()s
 2006-12-27 22:39:32 +00:00
sam_marshall
ad9947a857 MDL-7969 Documented requirement for first column in get_records_sql etc to be a unique field such as id. 2006-12-18 13:54:31 +00:00
tjhunt
0dae5d33a7 MDL-7926 - set_field_select function. Merged from MOODLE_17_STABLE. 2006-12-15 18:23:31 +00:00
stronk7
c54f0c106a Prevent some false-positives detecting uses of old user_XXX tables. 
See http://moodle.org/mod/forum/discuss.php?d=58976

Merged from MOODLE_17_STABLE
 2006-11-18 20:28:00 +00:00
skodak
810944af7f we are going 100% unicode now - removed use of $CFG->unicodedb and current_charset(); MDL-7439 - part 2, only hotpot and wiki left 2006-11-11 17:23:20 +00:00
stronk7
3eda2b3a7e modify_database() will show the deprecated debugging after 2006101007 
(Moodle 1.7 release version) MDL-5919
 2006-11-05 09:45:19 +00:00
stronk7
6c279afaef Now all the get_records() functions support only one field 
to be specified in the SELECT clause. Not needed anymore to
write double "SELECT id, id..." queries. Results returned
follow exactly the same structure than normal recordsets
(first field = key) MDL-5877

Merged from MOODLE_17_STABLE
 2006-11-04 17:01:34 +00:00
stronk7
bb5b7329bb Deprecating modify_database(). It shows debugging info 
if release > 2006101004 (Beta2 +01) MDL-5919

Merged from MOODLE_17_STABLE
 2006-11-04 16:22:49 +00:00
sam_marshall
2af5513789 MDL-7346 Changed enablerecordcache to be a limit for the size of cache, not just an on/off switch. 2006-11-03 17:29:15 +00:00
stronk7
6df56bc473 Oracle optimization. Texts under 4000cc can be handled directly as varchar2, 
so they don't need the 2-phase (insert/update) handling of LOBs

Merged from MOODLE_17_STABLE
 2006-10-30 23:13:48 +00:00
stronk7
18fcece954 Fixed one bug on Oracle produced when we were inserting 
records with returnid disabled and containing LOBs

Merged from MOODLE_17_STABLE
 2006-10-30 22:59:49 +00:00
stronk7
06edab84e1 New function sql_substr() returns the proper substr() function for each DB 
Merged from MOODLE_17_STABLE
 2006-10-30 18:31:08 +00:00
stronk7
db3df7266a Deprecating sql_as (now the AS keyword is required in COLUMN aliases) 
Merged from MOODLE_17_STABLE
 2006-10-30 17:41:55 +00:00
stronk7
b716e2e069 Now record_cache is controlled by $CFG->enablerecordcache 
Merged from MOODLE_17_STABLE
 2006-10-28 19:56:34 +00:00
stronk7
2fd40f8cbe Moved cache cleaning code near the begin of functions. Sometimes 
it wasnt' executed due to function ending. MDL-7196

Merged from MOODLE_17_STABLE
 2006-10-28 17:53:00 +00:00
stronk7
4bfb64aad2 Counting extra updates performed by Oracle & MSSQL in PERF 2006-10-27 17:49:25 +00:00
stronk7
068744a7a5 I forgot to globalize $record_cache in delete_record_XXX() functions. 
Merged from MOODLE_17_STABLE
 2006-10-27 17:14:58 +00:00
stronk7
9d98635b5e Minor improvements to the get_record() cache. Part of MDL-7196 
1) Check the cache issset() before unset() it.
2) In the set_field() function, if fieldX = 'id',
   just delete such element from the cache,
   else the whole table
3) Add some more unset() operations against the cache in
   the delete_xxxx() dmllib functions.

Merged from MOODLE_17_STABLE
 2006-10-27 16:56:34 +00:00
toyomoyo
4bda5c717c merged, taking care of a warning 2006-10-27 02:15:02 +00:00
moodler
92309430b8 Merged get_record caching from MDL-7196 in stable (thanks sam!) 2006-10-26 07:57:07 +00:00
stronk7
92602651dc Now insert_record() is using $db->GenID() to retrieve 
sequence numbers for Oracle. Just wondering if the same
function should be used by PostgreSQL too. MDL-7183

Merged from MOODLE_17_STABLE
 2006-10-23 17:46:08 +00:00
stronk7
f96a5db1c4 strip "old" harcoded "limit" clauses from the sql passed and 
debug about them. MDL-7173

Merged from MOODLE_17_STABLE
 2006-10-23 07:46:10 +00:00
stronk7
b9c3b8c734 Prevent MSSQL to return from insert_record() before 
trying to execute the updating of LOBs.

Merged from MOODLE_17_STABLE
 2006-10-23 00:01:57 +00:00
stronk7
c1bf1b0073 Debugging sql_paging_limit() as deprecated and 
enforcing get_field_sql() to return 1 record max

Merged from MOODLE_17_STABLE
 2006-10-22 23:21:59 +00:00
stronk7
cb4c207832 Adding limitfrom and limitnum parameters to a bunch of 
rarely executed functions...

Merged from MOODLE_17_STABLE
 2006-10-22 22:37:30 +00:00
stronk7
1afef7d9b3 Now insert/update/set of BINATY fields is supported by MSSQL 
(and easier to add new DB in the furure) MDL-7062

Merged from MOODLE_17_STABLE
 2006-10-17 23:37:58 +00:00
stronk7
e45346f98e Fixed typo that was preventing correct BLOB storage under Oracle. 
Merged from MOODLE_17_STABLE
 2006-10-17 18:31:56 +00:00
stronk7
6b7be6d74f Now set_field() supports Oracle LOBs. Better error handling of oracle_update_lobs() 
Merged from MOODLE_17_STABLE
 2006-10-15 20:21:27 +00:00
stronk7
73ad2d0c29 Now update_record() supports LOBs under Oracle. Plus prevent empty objects to be updated. 
Merged from MOODLE_17_STABLE
 2006-10-15 19:40:33 +00:00
stronk7
1a8078073e Minor changes + debug info in UpdateXlob() 
Merged from MOODLE_17_STABLE
 2006-10-15 18:37:01 +00:00
stronk7
b825e563c0 - Introducing the first version of the new mssql_n adodb driver (not finished, just for experimenting). 
- Now insert_record() is handling Oracle CLOBS and BLOBS properly (really annoying the number of hacks needed).
- Creating one new global object to cache $db->MetaColumns() calls per request, because it's being used
in a lot of places inside dmllib.
TODO: hack update_record() and set_field() to allow Oracle LOBs
      enclose all the Oracle function calls into one db transaction

Merged from MOODLE_17_STABLE
 2006-10-15 16:41:55 +00:00