scorm2004 - Should I set cmi.objectives.n.id via Javascript scorm API? -

-

should set cmi.objectives.0.id before set up, example, cmi.objectives.0.competition_status?

it's in order interpret req_72.4.3.5: "since cmi.objectives.n.id required to set first prior other objective information, if sco attempts set..."

e.g.:

scorm.setvalue('cmi.objectives.0.id', 'obj1'); //? scorm.setvalue('cmi.objectives.0.completion_status', 'completed');

(updated)

sorry, reason thought discussing interactions, not objectives. answer has been modified address objectives.

yes, objective required have id. can set id via javascript api (scorm rte) or via manifest. id must set before can perform other actions on objective, such set completion_status.

if sco requesting store objective information, sco required set identifier first (unless initialized means), prior other objective information. once cmi.objectives.n.id has value, data model element not allowed reset different value.

page rte 4-97

if aren't sure if id set, can use javascript see if objective exists , if has been assigned id.

example:

var obj_count = parseint(scorm.getvalue('cmi.objectives._count'), 10);  if(obj_count === 0){      //we know sure no objectives exist in sco yet.     //try setting id     scorm.setvalue('cmi.objectives.0.id', 'obj1');  }  var id = scorm.getvalue('cmi.objectives.0.id'); var err = parseint(scorm.getlasterror(), 10);  if(err == 0 && id == "obj1"){       //continue planned...  } else {      //there error or id undefined. time troubleshoot.  }

if id set still can't set completion_status, might need double-check manifest:

if <imsss:objectives> defined <imscp:item> element in content package manifest, lms responsible initializing objective run-time data (cmi.objectives.n.xxx) sco based on objective progress information referenced , managed learning activity. run-time data related objectives (cmi.objectives.n.xxx) should not initialized activity’s associated sco unless objective id attribute defined in sequencing information (<imsss:primaryobjective> or <imsss:objective>). objective id attribute shall used initialize cmi.objectives.n.id value. number of objectives defined in manifest dictates number of objective status information need initialized.


Popular posts from this blog

How to calculate SNR of signals in MATLAB? -

-
i've encountered simple, yet fundamental problem on calculating snr: there several signals : s1 = original , pure clean signal without noise. n1 = white gaussian noise going added s1. s2 = s1 + n1 (the noisy signal before performing noise-reduction algorithm) s3 = noise-reduced signal (after performing noise reduction algorithm) n2 = s3 - s1 (the amount of noise after performing noise-reduction algorithm) now want compare snr before , after performing noise-reduction algorithm. which signals should consider snr_before!? s1/n1 or s2/n1 ? which signals should consider snr_after!? s3/n1 or s3/n2 ? which commands or functions should use in matlab in order compute snr_before , snr_after? thanks billion putting time on helping me. what know calculating snr before : snrbeforenoise = mean( signal .^ 2 ) / mean( noise .^ 2 ); and snr after : residual_noise = signal - noise_reduced_signal; snr_after = mean( signal .^ 2 ) / mean( residual_noise .^ 2...
Read more

c# - Attempting to upload to FTP: System.Net.WebException: System error -

-
i have api takes in xml , uploads files based on information in xml. uploads on schedule (also xml), , have tested surrounding , know works. i getting error 40% of time on first file attempt upload in each time cycle (time cycle = 45 minutes files, 30 minutes others). here code upload: try { loggerftp.log("uploading file: " + filename, false); // create request. ftpwebrequest request = (ftpwebrequest)webrequest.create(appsettingsftp.ftpurl + @"/" + filename); request.method = webrequestmethods.ftp.uploadfile; request.timeout = 6000000; //set 100 minutes //request.timeout = -1; //set infinite // add login credentials. request.credentials = new networkcredential(appsettingsftp.ftplogin, appsettingsftp.ftppassword); // grab file contents. streamreader sourcestream = new streamreader(appsettingsftp.uploadfiledirectory + filename); byte[] filecontents = encoding.utf8.getbytes(sourcestream.readtoend()); sourcest...
Read more

ios - UISlider customization: how to properly add shadow to custom knob image -

-
Image
i need place custom knob image shadow uislider. far have image of 38x38, of there region defines shadow of knob. now while using image, when slide knob extreme ends actual knob not able cover end points, hence end points visible under transparent region of knob image this code using customize uislider uiimage *slidebtimg = [uiimage imagenamed:sliderknobimg]; [self.ratingslider setthumbimage:slidebtimg forstate:uicontrolstatenormal]; [self.ratingslider setthumbimage:slidebtimg forstate:uicontrolstatehighlighted]; how can implement custom knob shadow beneath it, covering end points?? look inside uislider.h , there methods let customize slider knob , track needed. (ios 2.0 , above) // lets subclass lay out track , thumb needed - (cgrect)minimumvalueimagerectforbounds:(cgrect)bounds; - (cgrect)maximumvalueimagerectforbounds:(cgrect)bounds; - (cgrect)trackrectforbounds:(cgrect)bounds; - (cgrect)thumbrectforbounds:(cgrect)bounds trackrect:(cgrect)rect value:...
Read more