Komponenta za ucitavanje i prikaz csv fajla - v1 (probna)

1 files changed, 82 insertions, 0 deletions

diff --git a/frontend/src/app/_elements/dataset-load/dataset-load.component.ts b/frontend/src/app/_elements/dataset-load/dataset-load.component.ts
new file mode 100644
index 00000000..d97e7cbe
--- /dev/null
+++ b/frontend/src/app/_elements/dataset-load/dataset-load.component.ts
@@ -0,0 +1,82 @@
+import { Component, OnInit, ViewChild } from '@angular/core';
+
+@Component({
+  selector: 'app-dataset-load',
+  templateUrl: './dataset-load.component.html',
+  styleUrls: ['./dataset-load.component.css']
+})
+export class DatasetLoadComponent {
+
+   //array varibales to store csv data
+   lines : any[] = []; //for headings
+   linesR : any[] = []; // for rows
+
+/*
+    const csv = require('csv-parser')
+    const fs = require('fs')
+    const res : string[] = [];
+
+    fs.createReadStream('https://raw.githubusercontent.com/sharmaroshan/Churn-Modelling-Dataset/master/Churn_Modelling.csv')
+      .pipe(csv())
+      .on('data', (data : string) => res.push(data))
+      .on('end', () => {
+        console.log(res);
+
+*/
+
+  changeListener(files: FileList) {
+
+    console.log(files);
+
+    if(files && files.length > 0) {
+    
+      let file: File | null = files.item(0);
+      if (file == null)
+        return;
+
+      if (file) { 
+          console.log(file.name);
+          console.log(file.size);
+          console.log(file.type);
+          //File reader method
+          let reader: FileReader = new FileReader();
+          reader.readAsText(file);
+          reader.onload = (e) => {
+            let csv: any = reader.result;
+            let allTextLines = [];
+            allTextLines = csv.split(/\r|\n|\r/);
+          
+          //Table Headings
+            let headers = allTextLines[0].split(/,(?=(?:[^\"]*\"[^\"]*\")*[^\"]*$)/);
+            let data = headers;
+            let tarr = [];
+            for (let j = 0; j < headers.length; j++) {
+              tarr.push(data[j]);
+            }
+            //Pusd headings to array variable
+            this.lines.push(tarr);
+            //console.log(this.lines);
+            
+          
+            // Table Rows
+            let tarrR : string[] = [];
+            
+            let arrl = allTextLines.length;
+            let rows = [];
+            for(let i = 1; i < arrl; i++){
+            rows.push(allTextLines[i].split(/,(?=(?:[^\"]*\"[^\"]*\")*[^\"]*$)/));
+          
+            }
+            
+            for (let j = 0; j < arrl; j++) {
+                tarrR.push(rows[j]);
+            }
+          //Push rows to array variable
+            this.linesR.push(tarrR);
+            console.log(this.linesR);
+        }
+      }
+    }
+  }
+
+}