我需要将通过汇总mongodb值创建的嵌套数组结果值传递到车把模板并显示在表中
Mongodb，nodejs，handlesbar js，expressjs
mongodb查询控制台的汇总输出为
{
"_id" : "Safety",
"c_group" : [
{
"c_group" : "Electrical Safety & Control of Hazardous Energy",
"c_name" : [
"Electrical Safety for Ordinary Electrical Persons",
"Electrical Safety for Qualified Electrical Persons",
]
},
{
"c_group" : "Vestas Basic Safety",
"c_name" : [
"Safety Introduction for Technicians"
]
},
{
"c_group" : "Others",
"c_name" : [
"GWO First Aid",
"Energy Control Coordinator"
]
},
{
"c_group" : "GWO Basic Safety",
"c_name" : [
"GWO Fire awareness",
"Working at heights",
"GWO Manual Handling"
]
}
],
"count" : 13
}
{
"_id" : "D Level",
"c_group" : [
{
"c_group" : "Installation",
"c_name" : [
"Basic installation"
]
},
{
"c_group" : "D-Add On-Service",
"c_name" : [
"AVANTI Operation Service lift",
"Bolt tightening"
]
},
{
"c_group" : "Service",
"c_name" : [
"Basic Service"
]
},
{
"c_group" : "Basic Turbine Operation",
"c_name" : [
"Anchor Cage Assembly",
"VMP 3500"
]
},
{
"c_group" : "GWO - Basic Technical Training",
"c_name" : [
"BTT Electrical",
"BTT Hydraulic"
]
}
],
"count" : 18
}
{
"_id" : "C Level",
"c_group" : [
{
"c_group" : "Installation",
"c_name" : [
"V80-V100 2MW",
"2MW MK10",
"V112/V117/V126 3.3MW",
"V112 On shore",
"Installation_C_All"
]
},
{
"c_group" : "Service",
"c_name" : [
"V39/V47",
"TAC II",
"VMP 5000"
]
},
{
"c_group" : "C-Add on",
"c_name" : [
"Power Climber_SE_INS",
"Inspection of Anchor Points"
]
},
{
"c_group" : "Turbine Operation(TOC)",
"c_name" : [
"TAC II",
"VMP 5000",
"VMP Global",
"VMP 6000",
"VMP Global Mk10 & Mk11",
"V112 and Gridstreamer",
"V112 Mk3 Cubepower",
"GE 1.5 ESS",
"GE 1.5MW non-ESS",
"GE 2.5/2.75 MW",
"G5x",
"G8x/G9x",
"Nordex N90 2.5MW",
"Siemens SWT 2.3MW",
"Suzlon 88-2.1MW"
]
}
],
"count" : 45
}
{
"_id" : "A Level",
"c_group" : [
{
"c_group" : "Troubleshooting Tools",
"c_name" : [
"VMP Global"
]
}
],
"count" : 1
}
{
"_id" : "B Level",
"c_group" : [
{
"c_group" : "Troubleshooting",
"c_name" : [
"VMP 3500",
"VMP 5000",
"TAC II",
"Siemens SWT 2.3MW",
"Suzlon 88-2.1MW"
]
},
{
"c_group" : "",
"c_name" : [
"G 1.8-2MW",
"G8x/9x"
]
}
],
"count" : 18
}
{
"_id" : "Special Courses",
"c_group" : [
{
"c_group" : "Blade",
"c_name" : [
"Blade Inspection (Level C)",
"Blade Repair (Level C)",
"Advanced Blade Repair (Level B)"
]
},
{
"c_group" : "Others",
"c_name" : [
"Mount mobile anchor point - V82",
"Turbine Operation"
]
},
{
"c_group" : "Transportation",
"c_name" : [
"Transport-Road transportation",
"Transport-Sea and Stevedoring"
]
}
],
"count" : 34
}
这是我的渲染代码，用于将值传递到车把模板
router.get('/catalogue', function(req, res) {
var catalogd = {};
Ct_course.aggregate([
{ $match: { "c_cust": false }},
{
$group: {
_id: {c_level: "$c_level", c_group: "$c_group" },
c_name: {$push: "$c_name"},
bookCount: {$sum: 1}}
},
{
$group: {_id: "$_id.c_level", c_group: { $push: {c_group: "$_id.c_group", c_name: "$c_name"} },
count: {$sum: "$bookCount"}
}
}
],
function(err, results){
var a= results.length;
for (i=0; i < a; i++)
{
catalogd = results[i];
console.log(catalogd);
}
res.render("course/catalogue",{course:catalogd});
});
}）;
在控制台上，我没有得到如mongodb查询窗口中那样的确切结果。我需要显示嵌套数组，并将所有值传递到车把文件。我获得的控制台值是
{ _id: 'Safety',
c_group:
[ { c_group: 'Electrical Safety & Control of Hazardous Energy',
c_name: [Array] },
{ c_group: 'Vestas Basic Safety', c_name: [Array] },
{ c_group: 'Others', c_name: [Array] },
{ c_group: 'GWO Basic Safety', c_name: [Array] } ],
count: 13 }
{ _id: 'D Level',
c_group:
[ { c_group: 'Installation', c_name: [Array] },
{ c_group: 'D-Add On-Service', c_name: [Array] },
{ c_group: 'Service', c_name: [Array] },
{ c_group: 'Basic Turbine Operation', c_name: [Array] },
{ c_group: 'GWO - Basic Technical Training', c_name: [Array] } ],
count: 18 }
{ _id: 'C Level',
c_group:
[ { c_group: 'Installation', c_name: [Array] },
{ c_group: 'Service', c_name: [Array] },
{ c_group: 'C-Add on', c_name: [Array] },
{ c_group: 'Turbine Operation(TOC)', c_name: [Array] } ],
count: 45 }
{ _id: 'A Level',
c_group: [ { c_group: 'Troubleshooting Tools', c_name: [Array] } ],
count: 1 }
{ _id: 'B Level',
c_group:
[ { c_group: 'Troubleshooting', c_name: [Array] },
{ c_group: '', c_name: [Array] } ],
count: 18 }
{ _id: 'Special Courses',
c_group:
[ { c_group: 'Blade', c_name: [Array] },
{ c_group: 'Others', c_name: [Array] },
{ c_group: 'Software Upload', c_name: [Array] },
count: 34 }
我不确定如何解析数组值并将其发送到车把模板文件。
从nodejs渲染到车把模板后的异常输出
使用每个循环在车把文件中最终输出，车把帮助器js文件将采用表格格式
Safety
-Electrical Safety & Control of Hazardous Energy
-Electrical Safety for Ordinary Electrical Persons
-Electrical Safety for Qualified Electrical Persons
我对将嵌套数组值传递到车把模板很困惑。