public async Task SaveAnswer()
{
AnswerIsReadOnly = true;
SaveAnswerButtonIsEnabled = false;
#region Thinking (try..)
var targetId = Guid.NewGuid();
History.Events.ThinkingAboutTargetEvent.Publish(targetId);
DisableNavigationRequestedEventMessage.Publish();
try
{
#endregion
#region Get the DB version of answer, then modify it and save
//STORE OUR MODIFIED TEXT
_ModifiedAnswerText = Answer.Text;
//PREPARE ANSWER TO BE SEARCHED FOR IN DB
Answer.Text = _InitialAnswerText;
PhrasesByTextAndLanguageRetriever retriever = null;
#region SEARCH IN DB FOR ANSWER (WITH INITIAL TEXT)
History.Events.ThinkingAboutTargetEvent.Publish(System.Guid.Empty);
{
retriever = await Business.PhrasesByTextAndLanguageRetriever.CreateNewAsync(Answer);
}
History.Events.ThinkingAboutTargetEvent.Publish(System.Guid.Empty);
var dbAnswer = retriever.RetrievedSinglePhrase;
if (dbAnswer == null)
{
//ANSWER NOT IN DB, BUT ANSWER IS A CHILD
if (Answer.IsChild)
{
//CANNOT SAVE THE ANSWER DIRECTLY BECAUSE IT IS A CHILD
#region CREATE NEW PHRASE EDIT, LOAD FROM ANSWER DTO, SAVE ANSWER
var newAnswerObj = await PhraseEdit.NewPhraseEditAsync();
Answer.Text = _ModifiedAnswerText;
var dto = Answer.CreateDto();
dto.Id = Guid.NewGuid();
newAnswerObj.LoadFromDtoBypassPropertyChecks(dto);
Answer = newAnswerObj;
#region Save Answer
Answer = await Answer.SaveAsync();
_InitialAnswerText = Answer.Text;
_ModifiedAnswerText = "";
SaveAnswerButtonIsEnabled = true;
AnswerIsReadOnly = true;
UpdateEditAnswerButtonVisibilities();
#endregion
#endregion
}
//ANSWER NOT IN DB, BUT ANSWER IS NOT A CHILD
else
{
#region SAVE THE ANSWER DIRECTLY, B/C IT IS NOT A CHILD
Answer = await Answer.SaveAsync();
_InitialAnswerText = Answer.Text;
_ModifiedAnswerText = "";
SaveAnswerButtonIsEnabled = true;
AnswerIsReadOnly = true;
UpdateEditAnswerButtonVisibilities();
#endregion
}
}
//ANSWER WAS FOUND IN DB
else
{
#region REASSIGN THE ANSWER WITH THE DBANSWER, SAVE WITH THE MODIFIED TEXT
Answer = dbAnswer;
Answer.Text = _ModifiedAnswerText;
Answer = await Answer.SaveAsync();
_InitialAnswerText = Answer.Text;
_ModifiedAnswerText = "";
SaveAnswerButtonIsEnabled = true;
AnswerIsReadOnly = true;
UpdateEditAnswerButtonVisibilities();
#endregion
}
#endregion
#endregion
#region (...finally) Thinked
}
finally
{
EnableNavigationRequestedEventMessage.Publish();
History.Events.ThinkedAboutTargetEvent.Publish(targetId);
}
#endregion
}
/// <summary>
/// Gets the most recent phrase beliefs for all of the current user's phrases.
/// </summary>
/// <returns></returns>
private async Task <PhraseEdit> GetRandomUnknownPhrase(MultiLineTextList multiLineTextList)
{
History.Events.ThinkingAboutTargetEvent.Publish(System.Guid.Empty);
if (_MostRecentPhraseBeliefsCache == null)
{
throw new Exception("MostRecentPhraseBeliefsCache should not be null");
}
if (_PseudoBeliefsCache == null)
{
_PseudoBeliefsCache = new MobileDictionary <string, Tuple <string, double> >();
}
PhraseEdit retPhrase = null;
//GET OUR UNKNOWNS OUT OF OUR CACHES
var threshold = double.Parse(StudyResources.DefaultKnowledgeThreshold);
var unknownBeliefsFromCache = (from belief in _MostRecentPhraseBeliefsCache
where belief.Strength < threshold &&
PhraseTextIsInMultiLineTextList(belief.Phrase.Text, multiLineTextList)
select belief).ToList();
var unknownPseudoBeliefsFromCache = (from entry in _PseudoBeliefsCache
where entry.Value.Item2 < threshold &&
PhraseTextIsInMultiLineTextList(entry.Key, multiLineTextList)
select entry).ToList();
//GET OUR UNKNOWN PHRASES THAT DONT HAVE A BELIEF OR PSUEDO BELIEF REGISTERED WITH THEM YET
var unregisteredUnknownPhrases = GetUnregisteredUnknownPhraseBeliefs(multiLineTextList,
unknownBeliefsFromCache,
unknownPseudoBeliefsFromCache);
var indexToPick = -1;
//TOTAL COUNT = MOST RECENT PHRASE BELIEFS + PSEUDO BELIEFS COUNT + PHRASES WITHOUT BELIEFS
var totalCountUnknown = 0;
totalCountUnknown += unknownBeliefsFromCache.Count;
if (_PseudoBeliefsCache != null)
{
totalCountUnknown += unknownPseudoBeliefsFromCache.Count;
}
totalCountUnknown += unregisteredUnknownPhrases.Count;
if (totalCountUnknown == 0)
{
//EVERYTHING IS KNOWN, SO RETURN NULL
return(null);
}
//IF WE TRY TO PICK FROM THE PSEUDO CACHE, THEN IT IS POSSIBLE
//THAT OUR PHRASETEXT NO LONGER MATCHES A PHRASE. THEREFORE, WE
//SET UP A LOOP TO KEEP TRYING TO PICK A RANDOM PHRASE FROM THE
//ENTIRE LIST OF BOTH CACHES. IF WE FAIL TO DO THIS, THEN WE WILL
//PICK FROM JUST THE ACTUAL BELIEF CACHE (NOT THE PSEUDO).
var maxTries = int.Parse(StudyResources.MaxTriesToPickRandomFromEntireList);
for (int i = 0; i < maxTries; i++)
{
History.Events.ThinkingAboutTargetEvent.Publish(System.Guid.Empty);
indexToPick = RandomPicker.Ton.NextInt(0, totalCountUnknown);
if (indexToPick < unknownBeliefsFromCache.Count)
{
//WE PICK FROM THE PHRASE BELIEF CACHE
var belief = unknownBeliefsFromCache[indexToPick];
return(belief.Phrase);
}
else if (indexToPick < (unknownBeliefsFromCache.Count + unknownPseudoBeliefsFromCache.Count))
{
//WE _TRY_ TO PICK FROM THE PSUEDO CACHE
indexToPick -= unknownBeliefsFromCache.Count;
var beliefEntry = unknownPseudoBeliefsFromCache[indexToPick];
var phraseText = beliefEntry.Key;
var languageText = beliefEntry.Value.Item1;
var phrase = await PhraseEdit.NewPhraseEditAsync(languageText);
phrase.Text = phraseText;
var phraseId = Guid.NewGuid();
phrase.Id = phraseId;
var retriever = await PhrasesByTextAndLanguageRetriever.CreateNewAsync(phrase);
retPhrase = retriever.RetrievedSinglePhrase;
if (retPhrase != null)
{
//WE HAVE FOUND A RETURN PHRASE, SO BREAK OUT OF OUR ATTEMPT LOOP
return(retPhrase);
}
}
else
{
//WE PICK FROM THE UNKNOWN PHRASES WITHOUT BELIEFS I'M CONVERTING THIS
//TO LIST THIS LATE BECAUSE WE DON'T NEED IT AS A LIST UNTIL NOW.
var asList = unregisteredUnknownPhrases.ToList();
indexToPick -= (unknownBeliefsFromCache.Count + unknownPseudoBeliefsFromCache.Count);
retPhrase = unregisteredUnknownPhrases[indexToPick];
return(retPhrase);
}
}
//IF WE'VE GOTTEN THIS FAR, THEN WE COULDN'T FIND AN UNKNOWN PHRASE
Services.PublishMessageEvent("Couldn't retrieve unknown phrase.", MessagePriority.Medium, MessageType.Warning);
return(null);
}
public async Task SaveQuestion()
{
QuestionIsReadOnly = true;
SaveQuestionButtonIsEnabled = false;
#region Thinking (try..)
var targetId = Guid.NewGuid();
History.Events.ThinkingAboutTargetEvent.Publish(targetId);
DisableNavigationRequestedEventMessage.Publish();
try
{
#endregion
#region Get the DB version of question, then modify it and save
//STORE OUR MODIFIED TEXT
_ModifiedQuestionText = Question.Text;
//PREPARE QUESTION TO BE SEARCHED FOR IN DB
Question.Text = _InitialQuestionText;
#region SEARCH IN DB FOR QUESTION (WITH INITIAL TEXT)
PhrasesByTextAndLanguageRetriever retriever = null;
History.Events.ThinkingAboutTargetEvent.Publish(System.Guid.Empty);
{
retriever = await Business.PhrasesByTextAndLanguageRetriever.CreateNewAsync(Question);
}
History.Events.ThinkingAboutTargetEvent.Publish(System.Guid.Empty);
var dbQuestion = retriever.RetrievedSinglePhrase;
if (dbQuestion == null)
{
//QUESTION NOT IN DB, BUT QUESTION IS A CHILD
if (Question.IsChild)
{
//CANNOT SAVE THE QUESTION DIRECTLY BECAUSE IT IS A CHILD
#region CREATE NEW PHRASE EDIT, LOAD FROM QUESTION DTO, SAVE QUESTION
var newQuestionObj = await PhraseEdit.NewPhraseEditAsync();
Question.Text = _ModifiedQuestionText;
var dto = Question.CreateDto();
dto.Id = Guid.NewGuid();
newQuestionObj.LoadFromDtoBypassPropertyChecks(dto);
Question = newQuestionObj;
#region Save Question
Question = await Question.SaveAsync();
_InitialQuestionText = Question.Text;
_ModifiedQuestionText = "";
SaveQuestionButtonIsEnabled = true;
QuestionIsReadOnly = true;
UpdateEditQuestionButtonVisibilities();
#endregion
#endregion
}
//QUESTION NOT IN DB, BUT QUESTION IS NOT A CHILD
else
{
#region SAVE THE QUESTION DIRECTLY, B/C IT IS NOT A CHILD
Question = await Question.SaveAsync();
_InitialQuestionText = Question.Text;
_ModifiedQuestionText = "";
SaveQuestionButtonIsEnabled = true;
QuestionIsReadOnly = true;
UpdateEditQuestionButtonVisibilities();
#endregion
}
}
//QUESTION WAS FOUND IN DB
else
{
#region REASSIGN THE QUESTION WITH THE DBQUESTION, SAVE WITH THE MODIFIED TEXT
Question = dbQuestion;
Question.Text = _ModifiedQuestionText;
Question = await Question.SaveAsync();
_InitialQuestionText = Question.Text;
_ModifiedQuestionText = "";
SaveQuestionButtonIsEnabled = true;
QuestionIsReadOnly = true;
UpdateEditQuestionButtonVisibilities();
#endregion
}
#endregion
#endregion
#region (...finally) Thinked
}
finally
{
EnableNavigationRequestedEventMessage.Publish();
History.Events.ThinkedAboutTargetEvent.Publish(targetId);
}
#endregion
}
