[英]Creating dynamic tables from JSON data with angular-directives
我有以下JSON對象:
[{
"id": 31,
"name": "Foosie",
"terms": [{
"term": 24,
"monthly": 190.09
},
{
"term": 27,
"monthly": 179.6
},
{
"term": 30,
"monthly": 178.78
},
{
"term": 33,
"monthly": 178.06
},
{
"term": 36,
"monthly": 171.11
},
{
"term": 39,
"monthly": 215.36
}
]
},
{
"id": 35,
"name": "Barrie",
"terms": [{
"term": 24,
"monthly": 199.61
},
{
"term": 27,
"monthly": 188.05
},
{
"term": 30,
"monthly": 186.37
},
{
"term": 33,
"monthly": 184.95
},
{
"term": 36,
"monthly": 177.41
},
{
"term": 39,
"monthly": 220.85
}
]
},
{
"id": 23,
"name": "Boosie",
"terms": [{
"term": 24,
"monthly": 290.04
},
{
"term": 27,
"monthly": 287.01
},
{
"term": 36,
"monthly": 257.07
},
{
"term": 39,
"monthly": 245.85
},
{
"term": 42,
"monthly": 241.45
}
]
}
]
我試圖用垂直和水平表創建一個表。 (Vertical = names [Boosie, Foosie, Barrie], Horizontal = terms [24,27,...]
每月是一個按鈕<button (click)="selectPayment(id, term)"></button>
,它傳遞所選單元格的ID和期限。
演示的jsfiddle: https ://jsfiddle.net/34k8ytrk/ [注意:這是為了快速演示而使用<table></table>
完成的,您的響應不必是表]
我知道我需要跟蹤名稱和術語,因為每個月都取決於名稱和術語,但是我被困在地獄中並且很難弄清楚它。 我知道我可能必須對數據進行一些操作才能完成這項工作。 任何幫助,將不勝感激。
table.component.html
<table>
<thead>
<tr>
<td>(blank)</td>
<!-- assuming all terms are the same, just take the first of the object -->
<td *ngFor="let head of uniqueHeaders">{{head}}</td>
</tr>
</thead>
<tbody>
<tr *ngFor="let bank of banks; let i = index">
<td>{{bank.name}}</td>
<td *ngFor="let head of uniqueHeaders">{{getColumnData(head, i)}}</td>
</tr>
</tbody>
</table>
table.component.ts
class BankDatabase {
banks: BankData[] // your bank data
get uniqueHeaders(): number[] {
// We want a unique array of numbers for the header
let _uniqueHeader = []
this.banks.forEach((bank) => {
bank.terms.forEach((term) => {
// Append the term if it has not been added yet
if (!_uniqueHeader.includes(term.term))
_uniqueHeader.push(term.term)
})
})
// This should return a unique array of all terms combined
return _uniqueHeader
}
// head is the currently iterated column
// i is the index of the bank (in your example 0 - 2)
getColumnData(head, i): string {
const matchingData = this.banks[i].terms.find(_term => _term.term === head)
// If matching data found, return it's monthly value, else return empty string
return matchingData && matchingData.monthly || ''
}
}
這是你想要的嗎? banks
是您擁有的json
數據。
請注意 ,我使用的是getter函數來平整headers數組,這很草率,您應該通過將平整的數據保存到屬性中進行優化,並在需要時從那里獲取它。 您可能還需要采取額外的步驟對數組進行排序,因為在我的示例中,該數組恰巧是從給定的示例數據中進行排序的。
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