facebook - Fetching photos in which 2 or more people are tagged -

-

as title says, i'm trying fetch 10 photos in logged user , 1 or more of his/her friends tagged. i'm trying php api , fql.

i'm new fql, not new programming etc. way able achieve want dynamically building multiple queries this:

select pid, src_big photo pid in(     select pid photo_tag subject = me()  ) , pid in(    select pid photo_tag      subject = '1530195' or      subject = '3612831' or      subject = '6912041' or      ... )

apart being ugly, slow. queries limited length shown above because fail when longer.

multi-queries didn't me because can't use 'as', sql isn't greatest strength , i'm hoping i've missed something..

there must better way! anyone?

just use 2 queries , intersection in programming language of choice.

  • select subject, pid photo_tag subject = me()
  • select pid, subject photo_tag subject in (select uid2 friend uid1=me())

batch these 2 calls

fql?q={"userphotos":"select subject, pid                       photo_tag                       subject = me()",        "friendphotos":"select pid, subject                         photo_tag                         subject in                        (select uid2 friend uid1=me())"}

then in programming language intersection of these 2 sets.

a0 = data['data'][0]['fql_result_set'] a1 = data['data'][1]['fql_result_set']

for example in python, simple as

>>> photos = {} >>> p in a0: ...     q in a1: ...         if p['pid'] == q['pid']: ...             pid =  p['pid'] ...             if pid in photos: ...                 photos[pid].append(p['subject']) ...             else: ...                 photos[pid] = [q['subject']] ...                 photos[pid].append(p['subject'])

photos give dict each key having list of ids value. take 10 of these , supply photo table fql call

in python facepy module might like

photoquery = 'select pid, src_big photo '+              'pid ='+pid1+' or              'pid ='+pid2+' or               ...  graph.fql(photoquery)

the slowest section overall photo_tag query on friends. select pid, subject photo_tag subject in (select uid2 friend uid1=me())


Comments

Post a Comment

Popular posts from this blog

Perl - how to grep a block of text from a file -

-
it can in xml or text format. how in general grep block of text in perl? <track type="ws"> <range> <rangestart>0</rangestart> <rangeend>146.912</rangeend> <locationindex>0</locationindex> <propertyindex>0</propertyindex> </range> </track> <track type="ps" id="1"> <range> <rangestart>0</rangestart> <rangeend>146.912</rangeend> <locationindex>1</locationindex> <propertyindex>1</propertyindex> </range> </track> i want grep type="ps" , till </range> . one solution open file, read line line , match block. open(fh, "file.txt"); foreach $line (<fh>) { if ($line =~ m/type="cc"(.*?)<\/range>/) { print $1; } } but there more optimal solution without reading file line l
Read more

delphi - How to remove all the grips on a coolbar if I have several coolbands? -

-
Image
if set mycoolbar.fixedorder true,only grip on first band hidden. well,if use delphi 7 create vcl forms application,then put coolbar on , create 3 coolbans hold other controls,only grip , top coolbands can hidden setting mycoolbar.fixedorder:=true. i've uploaded picture make things clear. you got fixedorder property wrong. fixed property not allow bands rearranged if set true . setting property of coolbar true keep user changing bands order @ runtime, user can still move , resize bands. can give advice can do, actual solution problem, well, have wait answer. my advice use 3 coolbars in row , setting "fixedorder" property true , bandborderstyle bsnone . way grip hidden on of them. about property, it's not bug of ide, actual preference of property.
Read more

javascript - Animating array of divs; only the final element is modified -

-
this baffling me @ moment. i'm experienced programmer looking throw bit of surprise fiancee on countdown page our wedding. desired effect simulated confetti falling behind main page. setup follows: i have array of divs in javascript. each div absolutely positioned on page. have interval set updates every 50 or milliseconds. on each tick, run loop on array of divs, , calculations , update positions. problem problem having, however, though can see divs created, stored array, , modified (in case, each has slight randomized rotation) during initialization phase, once tick update position starts, div stored in whatever last slot of array gets position updated. tried hard-coding each div index testing purposes, strictly last element update position. upon printing current "left" , "top" style values each div before , after calculations shows value has been changed, no visible change noticeable. here's basic code: javascript var container;
Read more