上面的图像是我的图形的样子,我想查询以下输出:
[
{
chart:{
name: 'chart1',
id: 'chart1',
label: 'chart',
pk: 'chart1',
},
variables: [
{
variable: {
name:'variable1'
id: 'variable1',
label: 'variable',
pk: 'variable1',
},
years: [
{
name:'year1'
id: 'year1',
label: 'year',
pk: 'year1',
},
{
name:'year2'
id: 'year2',
label: 'year',
pk: 'year2',
},
],
},
{
variable: {
name:'variable2'
id: 'variable2',
label: 'variable',
pk: 'variable2',
},
years: [
{
name:'year3'
id: 'year3',
label: 'year',
pk: 'year3',
},
],
}
],
},
{
chart:{
name: 'chart2',
id: 'chart2',
label: 'chart',
pk: 'chart2',
},
variables: [
{
variable: {
name:'variable2'
id: 'variable2',
label: 'variable',
pk: 'variable2',
},
years: [
{
name:'year4'
id: 'year4',
label: 'year',
pk: 'year4',
},
],
},
],
}
]
但是使用我当前的查询:
g
.V()
.hasLabel('chart')
.project('chart', 'variables')
.by(valueMap(true))
.by(
out('visualizes')
.hasLabel('year')
.out('outputs')
.hasLabel('variable')
.project('variable', 'years')
.by(
valueMap(true).fold()
)
.by(
__.in('outputs')
.hasLabel('year')
.valueMap(true)
.fold()
)
.fold()
)
这就是我得到的:
[
{
chart: {
id: 'chart1',
label: 'chart',
name: 'chart1',
pk: 'chart1',
},
variables: [
{
variable: [
{
id: 'variable1',
label: variable,
name: 'variable1',
pk: 'variable1'
}
],
years: [
{
id: 'year1',
label: 'year',
name: 'year1',
pk: 'year1',
},
{
id: 'year2',
label: "year",
name: 'year2',
pk: 'year2'
},
]
},
{
variable: [
{
id: 'variable1',
label: 'variable',
name: 'variable1',
'pk': 'variable1'
}
],
years: [
{
id: 'year1',
label: 'year',
name: 'year1',
pk: 'year1'
},
{
id: 'year2',
label: 'year',
name: 'year2',
pk: 'year2'
}
]
},
{
variable: [
{
id: 'variable2',
label: "variable",
name: 'variable2',
pk: 'variable2'
}
],
years: [
{
id: 'year3',
label: 'year',
name: 'year3',
pk: 'year3',
},
{
id: 'year4',
label: "year",
name: 'year4',
pk: 'year4'
}
]
}
]
},
{
chart: {
id: 'chart2',
label: 'chart',
name: 'chart2',
pk: 'chart2'
},
variables: [
{
variable: [
{
id: 'variable2',
label: 'variable',
name: 'variable2',
pk: 'variable2'
}
],
years: [
{
id: 'year3',
label: 'year',
name: 'year3',
pk: 'year3'
},
{
id: 'year4',
label: 'year',
name: 'year4',
pk: 'year4'
}
]
}
]
}
]
//this is the formatted version to be easily read. refer to this link for the actual json: https://pastebin.com/Y2ncHyPi
从实际输出中可以看到,我的查询问题是chart1
的重复项variable1
和chart2
的变量具有year3
,该变量来自{{1 }}。我是否需要更改图形的结构?还是我必须添加其他属性以供参考?请帮忙。
查询种子图:
chart1
PS:我正在使用Azure Cosmos DB的gremlin API。
答案 0 :(得分:1)
我可以提出一种我不确定是最简单的解决方案,但可以解决这个问题:
g.V().hasLabel('chart').
project('chart', 'variables').
by(valueMap(true)).
by(out('visualizes').
hasLabel('year').as('y').
out('outputs').
group().by().
by(select('y').fold()).unfold().
project('variable', 'years').
by(select(keys).
valueMap(true)).
by(select(values).unfold().
valueMap(true).fold()).fold())
我在这里进行了测试: https://gremlify.com/6h