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author | David Walter Seikel | 2014-03-31 18:31:08 +1000 |
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committer | David Walter Seikel | 2014-03-31 18:31:08 +1000 |
commit | 847c9f9e508734488550d09b592d450892694820 (patch) | |
tree | 2c04db44f0f8fba909282e9550959e21fd6bffa9 /ClientHamr | |
parent | TODO++ (diff) | |
download | SledjHamr-847c9f9e508734488550d09b592d450892694820.zip SledjHamr-847c9f9e508734488550d09b592d450892694820.tar.gz SledjHamr-847c9f9e508734488550d09b592d450892694820.tar.bz2 SledjHamr-847c9f9e508734488550d09b592d450892694820.tar.xz |
Notes about Stufflets and SquealStuff.
Diffstat (limited to '')
-rw-r--r-- | ClientHamr/GuiLua/skang.lua | 82 |
1 files changed, 77 insertions, 5 deletions
diff --git a/ClientHamr/GuiLua/skang.lua b/ClientHamr/GuiLua/skang.lua index fc93c0e..46869a1 100644 --- a/ClientHamr/GuiLua/skang.lua +++ b/ClientHamr/GuiLua/skang.lua | |||
@@ -358,17 +358,89 @@ Other Thing things are - | |||
358 | If module.foo is a table, it can have it's own metatable(foo). | 358 | If module.foo is a table, it can have it's own metatable(foo). |
359 | Such a table will use Thing as a proxy table via __index and __newindex, as it does now. | 359 | Such a table will use Thing as a proxy table via __index and __newindex, as it does now. |
360 | 360 | ||
361 | stuff:stuff('s') -> getmetatable(stuff).__stuff['s'] | ||
362 | |||
361 | test.foo -> test.__index(test, 'foo') -> test.__values[foo]; if that's nil, and test.__stuff[foo], then return an empty table instead? | 363 | test.foo -> test.__index(test, 'foo') -> test.__values[foo]; if that's nil, and test.__stuff[foo], then return an empty table instead? |
362 | test.foo(a) -> test.__index(test, 'foo') -> test.__values[foo](a) | 364 | |
363 | test.foo(a) -> test.__index(test, 'foo') -> test.__values[foo](a) (but it's not a function) -> test.__values[foo].__call(test.__values[foo], a) | 365 | test.foo(a) -> test.__index(test, 'foo') -> test.__values[foo](a) (but it's not a function) -> test.__values[foo].__call(test.__values[foo], a) |
364 | Doesn't seem useful. | 366 | Doesn't seem useful. |
365 | If test.foo is a Thing then that might be -> test.foo.__call(test.foo, a) -> could do something useful with this. | 367 | If test.foo is a Thing then that might be -> test.foo.__call(test.foo, a) -> could do something useful with this. |
368 | So far I have entirely failed to find a good use, since they all are catered for anyway. lol | ||
369 | |||
370 | stuff.s = {a='foo'} -> changes a, deletes everything else, or should. | ||
371 | |||
372 | stuff.s[key]={...} -> stuff is a Thing, stuff.s is a Thing, stuff.s[key] NOT a Thing, unless set up before hand, which it is not since [key] is arbitrary. | ||
373 | When we do, we would be re using the same Thing for each [key]. | ||
374 | Except currently Things have a module. | ||
375 | rawset(stuff.s, key, skang.copy(stuff.s[''], key)) -- when creating stuff.s[key] | ||
376 | So we could do - stuff.s.__stufflets = newThingForStufflets; stuff.s is a Thing, so it goes through __newindex, and these things will get caught. | ||
377 | skang.thing{'', module=stuff.s, types='Stuff'} -- Actually, the name is unimportant, this is for stuff with arbitrary names that don't match other Stuff. | ||
378 | stuff.s.__stufflets = newThingForStuff | ||
379 | stuff.s[''] = {} | ||
380 | skang.thing{'field0', module=stuff.s[''], ...} | ||
381 | skang.thing{'field1', module=stuff.s[''], ...} | ||
382 | So the diff is the existance of stuff.s.__stufflets, if it exists, then stuff.s[key] is checked against it, otherwise it is a non stufflet. | ||
383 | |||
384 | What we really want is - | ||
385 | squeal.database('db', 'host', 'someDb', 'user', 'password') -> Should return a module. | ||
386 | local db = require 'someDbThing' -> Same as above, only the database details are encodode in the someDbThing source, OR come from someDbThing.properties. | ||
387 | db:getTable('stuff', 'someTable') -> Grabs the metadata, but not the rows. | ||
388 | db:read('stuff', 'select * from someTable'} -> Fills stuff up with several rows, including setting up the metadata for the columns. | ||
389 | stuff[1].field1 -> Is a Thing, with a __stuff in the stuff metatable, that was created automatically from the database meta data. | ||
390 | stuff:read('someIndex') -> Grabs a single row that has the key 'someIndex', or perhaps multiple rows since this might have SQL under it. | ||
391 | stuff = db:read('stuff', 'select * from someTable where key='someIndex') | ||
392 | |||
393 | stuff:stuff('') -> getmetatable(stuff).__stuff[''] | ||
394 | stuff:stuff() -> getmetatable(stuff).__stuff[''] | ||
395 | |||
396 | stuff:stufflet('field1') -> stuff:stuff().__stuff['field1'] | ||
397 | |||
398 | stuff:write() -> Write all rows to the database table. | ||
399 | stuff:write(1) -> Write one row to the database table. | ||
400 | stuff:stufflet('field1').isValid = someFunction | ||
401 | stuff:isValid(db) -> Validate the entire stuff against it's metadata at least. | ||
402 | window.stuff = stuff -> Window gets stuff as it's default stuff, any widgets with same names as the table fields get linked. | ||
403 | grid.stuff = stuff -> Replace contents of this grid widget with data from all the rows in stuff. | ||
404 | choice.stuff = stuff -> As in grid, but only using the keys. | ||
405 | widget.stuff = stuff:stufflet('field1') -> This widget gets a particular stufflet. | ||
406 | |||
407 | In all these cases above, stuff is a table that has a Thing metatable, so it has __stuff. | ||
408 | It also has a .__stufflets. | ||
409 | Should include some way of specifyings details like key name, where string, etc. | ||
410 | And a way to link this database table to others, via the key of the other, as a field in this Stuff. | ||
411 | In Java we had this - | ||
412 | |||
413 | public class PersonStuff extends SquealStuff | ||
414 | { | ||
415 | |||
416 | ... | ||
417 | |||
418 | public final static String FULLNAME = "fullname"; | ||
419 | |||
420 | public static final String keyField = "ID"; // Name of key field/s. | ||
421 | public static final String where = keyField + "='%k'"; | ||
422 | public static final String listName = "last"; | ||
423 | public static final String tables = "PEOPLE"; | ||
424 | public static final String select = null; | ||
425 | public static final String stufflets[] = | ||
426 | { | ||
427 | keyField, | ||
428 | "PASSWD_ID|net.matrix_rad.squeal.PasswdStuff|,OTHER", | ||
429 | "QUALIFICATION_IDS|net.matrix_rad.people.QualificationStuff|,OTHER", | ||
430 | "INTERESTING_IDS|net.matrix_rad.people.InterestingStuff|,OTHER", | ||
431 | "title", | ||
432 | "first", | ||
433 | "middle", | ||
434 | "last", | ||
435 | "suffix", | ||
436 | |||
437 | ... | ||
438 | |||
439 | FULLNAME + "||,VARCHAR,512" | ||
440 | }; | ||
441 | } | ||
366 | 442 | ||
367 | stuff.s = {a='foo'} -> changes a, deletes everything else | ||
368 | stuff.s{a='foo'} -> only changes a -> stuff.s.__call(stuff.s, {a='foo'} Should allow setting non stufflets, so the below works. | ||
369 | 443 | ||
370 | stuff.s[key] = {...} -> stuff.s.key = {...} -> stuff.s = {key={...}} But this semantic means only one thing, which is 'key'. | ||
371 | stuff.s{key={...}} -> same as above This does the right thing if we are using 'key' to index rows. | ||
372 | ]] | 444 | ]] |
373 | 445 | ||
374 | -- Default things values. | 446 | -- Default things values. |