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Fragetyp - Datum

From LimeSurvey Manual

This page is a translated version of the page Question type - Date and the translation is 38% complete.

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Kurzbeschreibung

This question type can be used to ask for a certain date, time or a combination of both date and time. The values can be selected by the participants either from a popup calendar or from dropdown boxes. Validation, minimum, and/or maximum dates can be chosen by the survey administrator. Various date and time formats are supported.

Timepicker.jpgD Date DD.jpg

Datetime.jpg

Example: Example_Date_Time.zip

General options

Mandatory

Description

This option allows the survey administrators to request their respondents to answer to certain survey questions. If the mandatory questions are not answered, the respondents will not be able to proceed further. If you have a question with multiple subquestions and you require only certain subquestions to be answered, use the minimum answer attribute located under the Logic tab.

Available options

  • On
  • Off (default)


Relevance equation

Beschreibung

If the value of the relevance equation is "1" or "true", the question is "relevant" in the survey context, i.e. it is shown to the survey participant. If not, the question is hidden. Any survey question allows you to specify a relevance equation. This function is the successor of conditions and supports much more complex conditional logic.

Syntax-Hervorhebung

Whenever you save the relevance equation, it is evaluated and syntax-highlighted. Any errors will be color coded so that you can quickly detect and fix them.

Notice.png
Hint: To check if all the relevance equations are used correctly within your survey, read about our show logic file feature.


Gültige Werte

  • Any equation that makes use of the Expression Manager syntax, without surrounding curly braces.

Beispiele

Here are good examples of syntax highlighting.


Display

Anzeige als Dropdown-Boxen (dropdown_dates)

Beschreibung

If enabled, the date/time question type will display a dropdown box to the respondents from where to choose the date/time, instead of the default popup.

Verfügbare Optionen

  • Ja
  • Nein (Standard)

Example

If it is turned on, the question will be displayed in the following way:

D Date DD.jpg



Hide tip (hide_tip)

Description

Most questions will usually include a tip that says "Please choose one of the following options" or a hint text on how to fill out the question. This attribute allows you to turn off or on this tips/hints.

These tips/hints include validation criteria messages (such as min/max number of answers, min/max/equals sum value). If hide_tip is enabled, these messages will be hidden. However, if the user enters invalid data, the tips will appear. They will be coloured in red, getting changed to green once the validation criteria are met.

Available options

  • On - the tips/hints are hidden;
  • Off (default).


Month display style (month_display_style)

Description

The months can be displayed to the respondents in three ways: by using their short names (Jan, Feb, etc.), full names (January, February, etc.) or the number/position of the month in the yearly calendar (01 for January, 02 for February, and so on).

Available options

  • Short names
  • Full names
  • Numbers



Umgekehrte Antwortreihenfolge (reverse)

Beschreibung

If activated, the order of the answers will be reversed.

Verfügbare Optionen

  • An
  • Aus (Standard)

Example

Let's assume that you want to use an Array (Numbers) question type. If this option is disabled (default value), then the possible answers a survey participant can select are: "1, 2, 3, ... , 10". If enabled, the setting will reverse the order of the available answers: "10, 9, 8, ... , 1".


Question theme (question_theme)

Description

It allows you to use customized themes for the respective question.

Available options

  • Your created question themes which are located under the Question themes in the Themes panel.
Help.png Note: This feature is under development at the moment.


Always hide this question (hidden)

Beschreibung

If enabled, the question will always be hidden - it will not be displayed to the survey participants. This function can be used in the following scenarios:

  • If you wish to prefill a question with a URL and you want not to have it displayed on the screen. This overrides any conditions used within the survey because the respective question will not even be embedded on the page.
  • If you wish to store or calculate a value on the fly via the Expression Manager.
Help.png Note: A common question type that is used with this function is the Equation one.

Available options

  • On
  • Off (default)


CSS class (css_class)

Description

If you want to add special CSS classes to certain questions, you can enter the CSS class name(s) in this box. Make sure you leave an empty space between different class names.

Valid values

  • Any text string with a space between different CSS class names.
Notice.png
Hint: You can also insert an expression in this box (New in 3.0.0 ). Remember that the output of the expression will not be updated dynamically.


Important.png
According to the W3C, CSS class names can contain only the characters [a-zA-Z, and 0-9] and ISO 10646 characters U+00A1 and higher, plus the hyphen (-) and the underscore (_). They cannot start with a digit, or a hyphen followed by a digit. LimeSurvey encodes CSS classes, but it does not fix it totally.


QS:Date min/de

QS:Date max/de


Relevance help for printable survey (printable_survey_relevance_help)

Description

If you wish to print a survey, you can also print the relevance equations for each question. But, if you wish to offer instead an explanation rather than the expression on the printed form, fill in this box with the text explanation for the relevance equation.

Valid values

  • Any text and/or numbers you wish to be displayed on the printable form.


Input

Datum/Zeit-Format

Beschreibung

This question option can be used to specify a custom date format. If it is empty, the survey date format will be used.

Gültige Werte

  • The d/dd,m/mm,yy/yyyy,H/HH,M/MM formats can be used to display the date and/or time, while "-", ".", "/", ":" can be used as separators.

Examples

  • yyyy-mm-dd - year-month-day;
  • dd.mm.yyyy HH:MM - day.month.year Hour:Minute;
  • HH:MM - Hour:Minute (only the time can be selected);
  • yyyy/mm - year/month.



Minute step interval (minute_step_interval)

Description

It can be used only if the display dropdown boxes option is enabled and the input format makes use of minutes ("MM").


Valid values

  • Any numerical value smaller than 60. Adding a value bigger than 60 is redundant -> only "0" or "00" will be displayed in the dropdown box as possible answers.


Example

In the below example, the minute step interval option was set up to 7:

Minute step interval date question.png


Logic

Randomisierungsgruppenname (random_group)

Beschreibung

It places the questions into a specified randomization group, all questions included in the specified group being displayed in a random order to the survey respondents.

Gültige Werte

Just enter any string you like (for example: 'group1'). All question which have set the same string within the randomization group name box will have their place in the survey randomized (=randomly exchanged among each other).



Question validation equation (em_validation_q)

Beschreibung

This is an equation that is used to validate the entire question (e.g, all of its parts collectively for a multi-answer question). If the question fails the validation criteria, then em_validation_q_tip message will be displayed (it uses the CSS style .error). This tip uses the .em_q_fn_validation CSS style, which is hidden by default within template.css.

The main difference between this feature and the subquestion validation equations (em_validation_sq option) is that for this feature, if the question (or question parts) fail validation, then an error message could be shown. For the subquestion validation, each text entry cell (e.g., in an array question type, but it can also be applied to single entry question types) will be styled so that the background color is (light) red.

Valid values

  • Any equation that makes use of the Expression Manager syntax, without surrounding curly braces.

Example

  • You want to collect demographic information from users via a multiple short text question, and you want to validate that the user has entered a valid email address and phone number.

This example shows how the question looks with invalid answers:

Validation-invalid-both.jpg

And here is what it looks like with one invalid answer:

Validation-invalid-phone.jpg

Here is how you edit a question to enter that information:

Validation-gui.jpg

And here is part of the Show Logic File output that lets you check the accuracy of your expression and ensure that there are no syntax errors:

Validation-logic.jpg

As you can see, the validation equation tests that both the email and phone number are either empty or match a regular expression filter.

The validation tip only shows the warning message if the phone or email appears invalid.

Notice.png
Hint: In order to create complex validation messages, read about the usage of the Expression Manager.


If you wish to import the example from above into your LimeSurvey installation, download the following .lsq file: Em_validation_q_example.zip.

Notice.png
Hint: Remember, LimeSuvey uses the Perl syntax for regular expressions, so they should start and end with / (slash character)!


QS:Em validation q tip/de

Other

Insert page break in printable view (page_break)

Beschreibung

This attribute is only active when you actually print a survey from the Printable View. It forces a page break before the question.

Available options

  • On
  • Off (default)


Statistics

Display chart (display_chart)

Description

This attribute allows the survey administrator to choose if a chart that contains the question results should be displayed to the survey participants after they filled out the survey.

Help.png Note: To have the chart displayed on the last page, you have to enable the following options:


Available options

  • On
  • Off (default)



Chart type (chart_type)

Description

This attribute allows the survey administrator to choose which type of chart will be displayed to the respondent once he/she finished filling out the survey.

Help.png Note: Do not forget to change the question and survey settings in order to have the charts displayed at the end on the survey. For more details, check the wiki section on the display chart question attribute.

Available options

  • Bar chart
  • Pie chart
  • Radar
  • Line
  • PolarArea
  • Doughnut


Datumsangaben und Expression Manager: Erweiterte Validierung und Berechnung

Limesurvey (versions 2.05+ and above) makes it fairly easy to validate dates using the date_min and date_max fields (see above). Use these whenever possible. If you need to do more advanced validation, you may be able to work (and calculate) with dates using the Expression Manager and the function strtotime(). It calculates the number of seconds from the 1st January 1970 to a given date.


Example: if you want to display in a question text the number of days that have passed since a departure date (asked in a previous question) and today, you can can use the expression {(strtotime("now")-strtotime(departure))/60/60/24}.


Please be aware that strtotime() works with a lot of different formats, but with not all of them! For example, Limesurvey's default date format (MM-DD-YYYY) does NOT work with strtotime(). Please set your survey to use one of the following date formats to avoid problems: YYYY-MM-DD, YYYY/MM/DD, DD.MM.YYYY, MM/DD/YYYY or DD-MM-YYYY.

Important.png
Dates in Limesurvey are saved as a string (text format). The Expression Manager converts all dates part of an expression into the standard format "yyyy-mm-dd HH:MM:SS". This makes it much easier to compare dates in an expression (e.g. "date1>date2"). If you need a datestring in the format it was asked in the question, use the ".shown" attribute (e.g.: You were born on the {birthdate.shown}.)