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filterFunction.js
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filterFunction.js
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function filterFunction(filter, data, attr, wildcard) {
if (typeof filter==="string") {
try {
filter = JSON.parse(filter.replace(/'/g, '"'));
} catch (err) {
filter=[filter]; // make an array of the filter
}
}
if (filter.indexOf(wildcard) == -1) {
// is data an array?
if (Array.isArray(data)) {
// remove ones where does not match
data = data.filter((x) => {
let list;
if (!x[attr]) {
return true;
}
try {
list=JSON.parse(x[attr].replace(/'/g, '"'));
return list.some((e) =>filter.indexOf(e) >= 0);
} catch (err) { // when list is not an array, but a string
list=x[attr];
return filter.indexOf(x[attr]) >= 0;
}
});
} else {
if (!data[attr]) {
data = data;
} else {
let list;
try {
list=JSON.parse(data[attr].replace(/'/g, '"'));
if (list.some((e) => filter.indexOf(e) >= 0)) {
return data;
} else {
return {};
}
} catch (err) { // when list is not an array, but a string
if (filter.indexOf(data[attr]) >= 0) {
return data;
} else {
return {};
}
}
}
}
}
return data;
}
module.exports = filterFunction;