SAPUI5 XML视图中具有嵌套JSON数组的聚合绑定

Question

我正在尝试使用JSON模型中嵌套数组中的数据进行聚合绑定：这是我的模特：

{
"days": [{
    "day": "monday",
    "menus": [{
        "menu": "Spaghetti mit Rinder-Bolognese oder VEGATARISCH mit TomatenBasilikumsoße und Parmesan",
        "price": "3.90",
        "price2": "2.90",
        "title": "Menü 1"
    }, {
        "menu": "Schweinerückensteak frisch aus der Pfanne Maisgemüse mit Ofenpaprika und Blattpetersilie Kartoffel Gnocchi im Kürbissud grüne Pfeffer-Butter mit Basilikum",
        "price": "4.40",
        "price2": "3.40",
        "title": "Menü 2"
    }, {
        "menu": "Tilapia aus dem Ofen mit Kokos-Zitronengras Sauce 2,70 € Chinakohl, Karotten, Champignons und Erbsen Jasmin Duftreis",
        "price": "4.80",
        "price2": "3.50",
        "title": "Live Cooking"
    }, {
        "menu": "VEGETARISCH Kokos Paprikasuppe",
        "price": "1.20",
        "price2": "Suppenschale: 3.50",
        "title": "Suppe"
    }, {
        "menu": "Blumenkohl-Lauch Bratling mit Soja-Kerbeldip",
        "price": "2.50",
        "price2": "",
        "title": "Veganer Bratling"
    }]
}, {
    "day": "tuesday",
    "menus": [{...}]
}, {
    "day": "wednesday",
    "menus": [{...}]
}, {
    "day": "Donnerstag",
    "menus": [{...}]
}, {
    "day": "Freitag",
    "menus": [{...}]
}]}

我想像这样将“星期一”绑定到我的桌子上

<Table id="nordMenuTable" inset="false" items="{ path: '/Menus>/monday/menu' }">
                    <columns>
                        <Column minScreenWidth="Phone" demandPopin="true"/>
                        <Column minScreenWidth="Desktop" demandPopin="true" popinDisplay="WithoutHeader"><ObjectIdentifier title="{i18n>NordColumn1}"/></Column>
                        <Column minScreenWidth="Desktop" demandPopin="true" popinDisplay="Inline"><ObjectIdentifier title="{i18n>NordColumn3}"/></Column>
                        <Column minScreenWidth="Phone" hAlign="End"><ObjectIdentifier title="{i18n>NordColumn2}"/></Column>
                    </columns>
                    <items>
                        <ColumnListItem>
                            <ObjectIdentifier title="{Menus/>title}"/>
                            <Text text="{Menus>/menu}"/>
                            <Text text="{Menus>/price2}"/>
                            <Text text="{Menus>/price}"/>
                        </ColumnListItem>
                    </items>
                </Table>

[请为我提供带有嵌套数组的JSON文件的绑定语法。我知道，如果我只有一个JSON模型，并且其中的数据仅位于嵌套数组中，那么一切都会起作用，但是我需要这样的JSON文件以及与特定日期相关的所有菜单。

Answer 1

您的json模型应该类似于：

{
    "days": {
        "monday": {
            "menus": [{

            }]
        },
        "tuesday": {
            "menus": [{

            }]
        }
    }
}

并且您的items汇总应为items="{ path: '/Menus>/monday/menus' }"