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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 ce64a9140e
commit 277c058450
1 changed files with 63 additions and 57 deletions
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116
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; @Input() public categories: any;
bubbleChartBegin: any; bubbleChartBegin: any;
bubbleChartEnd: any; bubbleChartEnd: any;
cached_graph_data: any;
constructor( constructor(
private api: ApiService, private api: ApiService,
@ -52,63 +53,71 @@ export class MoreStuffComponent implements OnInit {
* Supplier Bubble Chart Setup * Supplier Bubble Chart Setup
*/ */
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);
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.
console.log("item.date : " + new Date(item.date));
console.log("start_range input box: " + start_range);
console.log("start_range : " + new Date(start_range));
console.log("end_range input box: " + end_range);
console.log("end_range : " + new Date(end_range));
console.log("item.date >= start_range: " + (new Date(item.date) >= new Date(start_range)));
console.log("item.date <= end_range: " + (new Date(item.date) <= new Date(end_range)));
console.log("is_item_in_range: " + is_item_in_range);
console.log("----------------------");
if (is_item_in_range) {
graph_data.push({
t: item.date,
r: item.value > 1000000 ? (item.value / 1000000) + 10 : (item.value / 100000) + 5,
supplier: item.seller,
y: item.count,
value: item.value,
count: item.count,
});
}
});
return graph_data;
} else {
passed_graph_data.data.map(item => {
graph_data.push({
t: item.date,
r: item.value > 1000000 ? (item.value / 1000000) + 10 : (item.value / 100000) + 5,
supplier: item.seller,
y: item.count,
value: item.value,
count: item.count,
});
});
return graph_data;
}
}
private loadSupplierBubble(useRange: boolean, start_range : string, end_range : string) { 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); console.log("Fetching data for bubble chart... this will take a while. custom range = " + useRange);
this.api.loadMiscUrl('organisation/external/supplier_count').subscribe( if (this.cached_graph_data) {
result => { this.supplierBubbleChartData[0].data = this.formatGraphData(this.cached_graph_data, useRange, start_range, end_range);
let graph_data = []; }
else {
this.api.loadMiscUrl('organisation/external/supplier_count').subscribe(
result => {
this.cached_graph_data = result;
if (useRange == true) { this.supplierBubbleChartData[0].data = this.formatGraphData(this.cached_graph_data, useRange, start_range, end_range);
console.log("using range " + start_range + " : " + end_range); console.log("Graph fetched with " + this.cached_graph_data.length + " items.");
result.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));
console.log("end_range input box: " + end_range);
console.log("end_range : " + new Date(end_range));
console.log("item.date >= start_range: " + (new Date(item.date) >= new Date(start_range)));
console.log("item.date <= end_range: " + (new Date(item.date) <= new Date(end_range)));
console.log("is_item_in_range: " + is_item_in_range);
console.log("----------------------");
if (is_item_in_range) {
graph_data.push({
t: item.date,
r: item.value > 1000000 ? (item.value / 1000000) + 10 : (item.value / 100000) + 5,
supplier: item.seller,
y: item.count,
value: item.value,
count: item.count,
});
}
});
this.supplierBubbleChartData[0].data = graph_data;
} else {
result.data.map(item => {
graph_data.push({
t: item.date,
r: item.value > 1000000 ? (item.value / 1000000) + 10 : (item.value / 100000) + 5,
supplier: item.seller,
y: item.count,
value: item.value,
count: item.count,
});
});
this.supplierBubbleChartData[0].data = graph_data;
} }
)
}
this.supplierBubbleChartData[0].data = graph_data;
console.log("Graph fetched with " + graph_data.length + " items.");
}
)
} }
public supplierBubbleChartType: ChartType = 'bubble'; public supplierBubbleChartType: ChartType = 'bubble';
@ -165,7 +174,7 @@ export class MoreStuffComponent implements OnInit {
let value_data = []; let value_data = [];
let count_data = []; let count_data = [];
console.log("Graph being fetched."); console.log("Graph being fetched from server.");
result.data.map(item => { result.data.map(item => {
value_data.push({ value_data.push({
t: item.date, t: item.date,
@ -186,13 +195,10 @@ export class MoreStuffComponent implements OnInit {
bubbleChartUpdate() { bubbleChartUpdate() {
console.log("start_range input box: " + this.bubbleChartBegin); 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 input box: " + this.bubbleChartEnd);
console.log("end_range : " + new Date(this.bubbleChartEnd));
// this is called when daterange is changed // this is called when daterange is changed
this.loadSupplierBubble(true, (this.bubbleChartBegin), (this.bubbleChartEnd)); this.loadSupplierBubble(true, (this.bubbleChartBegin), (this.bubbleChartEnd));
console.log("Bubble chart updating...");
/* /*
bubbleChartBegin: any; bubbleChartBegin: any;
bubbleChartEnd: any; bubbleChartEnd: any;