source: Dev/branches/rest-dojo-ui/client/qed/model/schema.js @ 418

define(['dojo/_base/lang'],function(lang){

    /** Note on dojox.json.schema
     * This implementation is not according to the version 03 of the json-schema
     * draft. Differences:
     * - doesn't support the 'required' property, but uses 'optional' (which is
     *   false by default).
     */

    ////////////////////////////////////////
    // Base schema types
    //

    var dateRe = "\\d{4}-\\d{2}-\\d{2}"; // YYYY-MM-DD
    var timeRe = "\\d{2}:\\d{2}:\\d{2}"; // hh:mm:ss 
    var datetimeRe = dateRe+"T"+timeRe+"Z"; // YYYY-MM-DDThh:mm:ssZ

    function mixin(obj1,obj2) {
        return lang.mixin({},obj1||{},obj2||{});
    }
    function mkType(base) {
        return function(props) {
            return mixin(base,props);
        };
    }

    var nestring = mkType({ type:'string', minLength:1 });
    var string = mkType({ type:'string' });
    var integer = mkType({ type: 'integer' });
    var boolean = mkType({ type: 'boolean' });
    var pattern = function(p){
        return mixin({
            type: 'string',
            pattern: p
        });
    };
    var date = mkType(pattern(dateRe));
    var time = mkType(pattern(timeRe));
    var datetime = mkType(pattern(datetimeRe));
    var array = function(items,props) {
        return mixin({
            type: 'array',
            items: items
        },props);
    };
    var object = function(properties,props) {
        return mixin({
            type: 'object',
            properties: properties,
            additionalProperties: false
        },props);
    };
    var optional = mkType({ optional: true });

    ////////////////////////////////////////
    // Domain specific
    //

    var typedobject = function(type,properties,props) {
        return object(mixin(properties,{
            type: pattern(type)
        }),props);
    };

    var dbobject = function(type,properties,props) {
        return typedobject(type,mixin(properties,{
            _id: nestring(optional()),
            _rev: nestring(optional())
        }),props);
    };

    ////////////////////////////////////////
    // The QED schema
    //

    var schema = {type:[
        dbobject('Question',{
            code:nestring(),
            title: nestring(),
            description: string(optional()),
            topic: string(optional()),
            categories: array(nestring(),optional()),
            content: array([
                typedobject('Header',{
                    content:string(optional())
                }),
                typedobject('Text',{
                    content:string(optional())
                }),
                typedobject('Divider'),
                typedobject('StringInput'),
                typedobject('TextInput',{
                    maxLength:integer()
                }),
                typedobject('IntegerInput',{
                    min:integer(),
                    max:integer(),
                    step:integer()
                }),
                typedobject('MultipleChoiceInput',{
                    multiple:boolean(),
                    items:array(nestring())
                })
            ],optional()),
            publicationDate:datetime(optional())
        }),
        dbobject('Survey',{
            title: nestring(),
            description: string(optional()),
            questions: array(nestring(),optional()),
            publicationDate:datetime(optional())
        }),
        dbobject('SurveyRun',{
            description: string(optional()),
            surveyId: nestring(),
            publicationDate:datetime(optional()),
            startDate:datetime(),
            endDate:datetime(),
            mode:{type:'string',enum:['open','closed']},
            respondents: array(nestring(),optional()),
            metadata:{type:'object',optional:true}
        }),
        dbobject('Session',{
            title: nestring(),
            description: string(optional()),
            publicationDate: datetime(optional())
        }),
        dbobject('SessionTemplate',{
            title: nestring(),
            description: string(optional()),
            publicationDate: datetime(optional()),
            plannedDate: datetime(optional())
        })
    ]};

    return schema;
});