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caching data from server to increase speed

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This commit is contained in:
Felix 2019-08-16 10:27:49 +01:00
parent 716bb409b5
commit 20fb03d1c9
1 changed files with 63 additions and 57 deletions
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40
src/app/dashboard/more-graphs-and-tables.component.ts
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@ -14,6 +14,7 @@ export class MoreStuffComponent implements OnInit {
@Input() public categories: any;
bubbleChartBegin: any;
bubbleChartEnd: any;
cached_graph_data: any;
constructor(
private api: ApiService,
@ -52,21 +53,15 @@ export class MoreStuffComponent implements OnInit {
* Supplier Bubble Chart Setup
*/
private loadSupplierBubble(useRange: boolean, start_range : string, end_range : string) {
console.log("Fetching data for bubble chart... this will take a while. custom range = " + useRange);
this.api.loadMiscUrl('organisation/external/supplier_count').subscribe(
result => {
private formatGraphData(passed_graph_data: any, useRange : boolean, start_range: string, end_range: string) : any[] {
let graph_data = [];
if (useRange == true) {
console.log("using range " + start_range + " : " + end_range);
result.data.map(item=> {
passed_graph_data.data.map(item=> {
let is_item_in_range = (new Date(item.date) >= new Date(start_range) && new Date(item.date) <= new Date(end_range));
// there are a lot of `new Date(blah)` but that is what works for some reason.
// IT WORKS!!!!!!!!!
console.log("item.date : " + new Date(item.date));
console.log("start_range input box: " + start_range);
console.log("start_range : " + new Date(start_range));
@ -89,9 +84,9 @@ export class MoreStuffComponent implements OnInit {
}
});
this.supplierBubbleChartData[0].data = graph_data;
return graph_data;
} else {
result.data.map(item => {
passed_graph_data.data.map(item => {
graph_data.push({
t: item.date,
r: item.value > 1000000 ? (item.value / 1000000) + 10 : (item.value / 100000) + 5,
@ -102,15 +97,29 @@ export class MoreStuffComponent implements OnInit {
});
});
this.supplierBubbleChartData[0].data = graph_data;
return graph_data;
}
}
this.supplierBubbleChartData[0].data = graph_data;
console.log("Graph fetched with " + graph_data.length + " items.");
private loadSupplierBubble(useRange: boolean, start_range : string, end_range : string) {
console.log("Fetching data for bubble chart... this will take a while. custom range = " + useRange);
if (this.cached_graph_data) {
this.supplierBubbleChartData[0].data = this.formatGraphData(this.cached_graph_data, useRange, start_range, end_range);
}
else {
this.api.loadMiscUrl('organisation/external/supplier_count').subscribe(
result => {
this.cached_graph_data = result;
this.supplierBubbleChartData[0].data = this.formatGraphData(this.cached_graph_data, useRange, start_range, end_range);
console.log("Graph fetched with " + this.cached_graph_data.length + " items.");
}
)
}
}
public supplierBubbleChartType: ChartType = 'bubble';
public supplierBubbleChartData: any[] = [
{
@ -165,7 +174,7 @@ export class MoreStuffComponent implements OnInit {
let value_data = [];
let count_data = [];
console.log("Graph being fetched.");
console.log("Graph being fetched from server.");
result.data.map(item => {
value_data.push({
t: item.date,
@ -186,13 +195,10 @@ export class MoreStuffComponent implements OnInit {
bubbleChartUpdate() {
console.log("start_range input box: " + this.bubbleChartBegin);
console.log("start_range : " + new Date(this.bubbleChartBegin));
console.log("end_range input box: " + this.bubbleChartEnd);
console.log("end_range : " + new Date(this.bubbleChartEnd));
// this is called when daterange is changed
this.loadSupplierBubble(true, (this.bubbleChartBegin), (this.bubbleChartEnd));
console.log("Bubble chart updating...");
/*
bubbleChartBegin: any;
bubbleChartEnd: any;