Android Open Source - dv-quiz Question

From Project

Back to project page dv-quiz.

License

The source code is released under:

Apache License

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Java Source Code

package com.dvorakdev.dvquiz.model;
/*  w  w w.  j av a 2s.  co  m*/
import java.util.Collections;
import java.util.List;

import com.activeandroid.Model;
import com.activeandroid.annotation.Column;
import com.activeandroid.annotation.Column.ForeignKeyAction;
import com.activeandroid.annotation.Table;

@Table(name = "Question")
public class Question extends Model {
  
  @Override
  public String toString()
  {
    return this.getQuestion();
  }
  
  public Boolean isNew()
  {
    return this.getId() == null;
  }
  
  private List<Answer> answers;
  private List<Answer> shuffledAnswers;
  
  @Column(name = "Quiz", onDelete = ForeignKeyAction.CASCADE)
  private Quiz quiz;
  
  @Column(name = "Question")
  private String question;

  @Column(name = "CorrectAnswer")  
  private Answer correctAnswer;
  
  public String getQuestion() {
    return question;
  }

  public void setQuestion(String question) {
    this.question = question;
  }

  public Answer getCorrectAnswer() {
    return correctAnswer;
  }

  public void setCorrectAnswer(Answer correctAnswer) {
    this.correctAnswer = correctAnswer;
  }

  public Quiz getQuiz() {
    return quiz;
  }

  public void setQuiz(Quiz quiz) {
    this.quiz = quiz;
  }
  
  public Boolean isFirst()
  {
    return this.getQuiz().getQuestions().get(0).equals(this);
  }
  
  public Boolean isLast()
  {
    return this.getQuiz().getQuestions().get(this.getQuiz().getQuestions().size() - 1).equals(this);
  }
  
  public Boolean hasPrevious()
  {
    return !this.isFirst();
  }
  
  public Boolean hasNext()
  {
    return !this.isLast();
  }

    public List<Answer> getAnswers()
    {
      if (this.answers == null)
      {
        this.answers = this.getMany(Answer.class, "Question");
      }
      
        return this.answers; 
    }
    
    public List<Answer> getShuffledAnswers()
    {
      if (this.shuffledAnswers == null)
      {
        this.shuffledAnswers = this.getAnswers();
        
        Collections.shuffle(this.shuffledAnswers);
      }
      
        return this.shuffledAnswers; 
    }
    
    public static List<Question> all()
    {
      return Model.all(Question.class);
    }
    
    public static void truncate()
    {
      Model.delete(Question.class);
    }

}

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