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Fixed 'JSON to CSV' data flattening.

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This commit is contained in:
n1474335 2021-02-16 14:48:56 +00:00
parent 61e85474d3
commit b69373f5e7
1 changed files with 9 additions and 7 deletions
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16
src/core/operations/JSONToCSV.mjs
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@ -43,15 +43,16 @@ class JSONToCSV extends Operation {
/**
* Converts JSON to a CSV equivalent.
*
* @param {boolean} force - Whether to force conversion of data to fit in a cell
* @returns {string}
*/
toCSV() {
toCSV(force=false) {
const self = this;
// If the JSON is an array of arrays, this is easy
if (this.flattened[0] instanceof Array) {
return this.flattened
.map(row => row
.map(self.escapeCellContents.bind(self))
.map(d => self.escapeCellContents(d, force))
.join(this.cellDelim)
)
.join(this.rowDelim) +
@ -61,13 +62,13 @@ class JSONToCSV extends Operation {
// If it's an array of dictionaries...
const header = Object.keys(this.flattened[0]);
return header
.map(self.escapeCellContents.bind(self))
.map(d => self.escapeCellContents(d, force))
.join(this.cellDelim) +
this.rowDelim +
this.flattened
.map(row => header
.map(h => row[h])
.map(self.escapeCellContents.bind(self))
.map(d => self.escapeCellContents(d, force))
.join(this.cellDelim)
)
.join(this.rowDelim) +
@ -98,7 +99,7 @@ class JSONToCSV extends Operation {
if (!(this.flattened instanceof Array)) {
this.flattened = [this.flattened];
}
return this.toCSV();
return this.toCSV(true);
} catch (err) {
throw new OperationError("Unable to parse JSON to CSV: " + err.toString());
}
@ -109,11 +110,12 @@ class JSONToCSV extends Operation {
* Correctly escapes a cell's contents based on the cell and row delimiters.
*
* @param {string} data
* @param {boolean} force - Whether to force conversion of data to fit in a cell
* @returns {string}
*/
escapeCellContents(data) {
escapeCellContents(data, force=false) {
if (typeof data === "number") data = data.toString();
if (typeof data !== "string") data = JSON.stringify(data);
if (force && typeof data !== "string") data = JSON.stringify(data);
// Double quotes should be doubled up
data = data.replace(/"/g, '""');