View source for Calculated question actual 1.7 interface summary

currently editing[[User:Pierre Pichet|Pierre Pichet]] 21:41, 17 August 2006 (WST)
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    <td colspan="4"> 
      <div align="center"> 
        <p>Calculated question step1 of 3 <br>
          Definition of general questions parameters and common options</p>
      </div>
      <ul>
        <li> 
          <div align="left">Name</div>
        </li>
        <li>Question text</li>
        <li>Answer formula and correcting parameters (units, tolerance etc.)</li>
        <li>General feedback</li>
      </ul>
    </td>
  </tr>
  <tr> 
    <td> 
      <p>Creating a new question </p>
      <p>Click in <font color="#FF3300"><b>Save changes</b></font></p>
    </td>
    <td> 
      <p>Editing a question</p>
      <p>Click in <font color="#FF3300"><b>Save changes</b></font></p>
    </td>
    <td>Making a copy of a question<br>
      Click on SAVE AS A NEW</td>
    <td> 
      <p align="center">Moving a question to another category</p>
      <p align="center">Click on Move to </p>
    </td>
  </tr>
  <tr> 
    <td> 
      <p>NOTHING is saved in the database,<br>
        the data is transfered in the SESSION parameter ( the cookie)</p>
    </td>
    <td>Data saved in database</td>
    <td>Create a new question and save a copy of the data in database</td>
    <td>Change the category_id of the question</td>
  </tr>
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    <td colspan="4"> 
      <div align="center"> 
        <p>Calculated question step 2 of 3</p>
        <p>Verify if there is at least on calculated parameter (ex {length}, {a1)) 
          in the Answer formula<br>
          Defining for each of the calculated parameters if it will be </p>
      </div>
      <ul>
        <li> 
          <div align="center"> 
            <div align="left">Specific and only used by this question </div>
          </div>
        </li>
      </ul>
      <div align="center">OR </div>
      <ul>
        <li> 
          <div align="center"> 
            <div align="left">Used an existing sharable parameter already present in THIS CATEGORY or create a sharable parameters useable by other questions in THIS CATEGORY</div>
          </div>
        </li>
      </ul>
    </td>
  </tr>
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    <td> 
      <p>New default parameter defined but<br>
        NOT is saved in the database,<br>
        the definition is transfered in the SESSION parameter ( the cookie)</p>
    </td>
    <td>Parameter saved in the database</td>
    <td>New default parameter saved in the database</td>
    <td> 
      <p>There is a bug:</p>
      <p>The calculated parameters remain in the initial category so you have 
        to recreate them from scratch and if you move back in the initial category 
        the original data still there</p>
      <p>It would be nice to find a solution to this bug. Below is [[#Tim's suggestion|my suggestion]].</p>
    </td>
  </tr>
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    <td colspan="4"> 
      <div align="center"> 
        <p>Calculated question step 3 of 3</p>
      </div>
      <ul>
        <li>Modify the calculated parameters dataset ( Minimum, maximum, distribution)</li>
        <li>Add either new dataitems or precedingly removed items or remove dataitems</li>
      </ul>
    </td>
  </tr>
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    <td>
      <p>Modifications stored in Session items.</p>
      <p>Adding a first series of dataitems, the question is saved using ALL the 
        preceeding data stored in the SESSION parameters.</p>
      <p>After this addition everything is similar to editing a question (column 
        at right)</p>
    </td>
    <td>
      <p>Modifications to the datasets are not stored UNLESS you click to ADD.</p>
      <p>If you click to REMOVE (a dataitem) or exit trough back to quiz editing without having clicked on Add you loss the dataset modifications done!!
      </p>
    </td>
    <td>&nbsp;You need to reconstruct all the datasets and dataitems</td>
    <td>&nbsp;You need to reconstruct all the datasets and dataitems</td>
  </tr>
</table>

===Tim's suggestion===

What about if, when you are moving questions from one category to another, it searches the database to see whether
# The dataset is only used by questions that are being moved to the new category now; or
# It is used by other questions.
In case 1, move the dataset to the new category with the questions. If 2, display a warning with the choices 'cancel', 'move all the questions depending on these datasets', or 'move question and copy datasets'.

When you need to copy datasets, I think it should copy the dataset definitions automatically, to save the user having to recreate them. Then they only need to recreate the dataset items.
===Pierre's comments===
Your suggestion is mostly what I was planning and I am beginning to work on. However because of the academic year beginning next week, it won't be ready for testing until the end of september.Most of the problem is related to the datasets that are used by more than one question. The other datasets just follow the question because they are not category dependent.This imply also that category moving should be done by default question functions not by just modifying the question->category parameter.
[[Calculated_question_development#Moving_calculated_questions_to_another_category]]