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object transform
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const objectTransform = r.curry(function OT_(template, obj) { | |
let originalObject = obj | |
function OT(template, obj) { | |
let o = obj | |
const | |
t = template, | |
keys = r.keys(template) | |
const | |
result = r.reduce((acc, key: string) => { | |
const mapT = t[key], val = <any> r.path([key], o) | |
let num = void 0 | |
if (key === '>>0') { | |
console.log() | |
} | |
const result = ( | |
r.isNil(val) && key.indexOf('>') !== 0 | |
? acc | |
: r.is(Boolean, mapT) | |
? mapT === true | |
? r.assoc(key, val, acc) | |
: acc | |
: r.is(String, mapT) | |
? r.assoc(mapT, val, acc) | |
: r.is(Function, mapT) | |
? key === '>' | |
? mapT(o, key, originalObject, acc) | |
: (num = r.path([1], key.match(/>>(\d)/))) | |
? num === '0' | |
? (o = r.merge(o, mapT(o, key, originalObject, acc)), acc) | |
: num === '2' | |
? (originalObject = r.merge(originalObject, mapT(o, key, originalObject, acc)), acc) | |
: r.merge(acc, mapT(o, key, originalObject, acc)) | |
: r.assoc(key, mapT(o, key, originalObject, acc), acc) | |
: r.is(Array, mapT) | |
? mapT.length === 1 | |
? r.assoc(key, map(OT.bind(null, mapT[0]), val), acc) | |
: r.assoc(key, map(r.apply(OT), r.zip(mapT, val)), acc) | |
: r.is(Object, mapT) | |
? r.assoc(key, OT(mapT, val), acc) | |
: acc) | |
return result | |
}, {}, keys) | |
return result | |
} | |
const finalResult = OT(template, obj) | |
return finalResult | |
}) | |
// Example usage | |
exampleViewMap = objectTransform({ | |
box: true, | |
dueDate: true, | |
dealer: true, | |
emailPercentages: (o, key) => Math.round(o[key]) + '%', | |
gross: true, | |
//call a generic view that maps over an object. | |
'>': (x, y, z, result) => objectView(result) | |
}), | |
serviceDealerViewMap = objectTransform({ | |
note: true, | |
startingContractNumber: true, | |
endingContractNumber: true, | |
manualContractsCompleted: true, | |
coursesCompleted: true, | |
courseList: [{ | |
'>': o => ({ name: `${o.firstName} ${o.lastName}` }), | |
courses: true, | |
}], | |
feedback: true, | |
// call a reusable view that maps over the feedback object and is generic for the rest of the keys | |
// I could have a function here that just says `fourth(feedback)` instead | |
'>': (x, y, z, acc) => feedback(acc) | |
}) |
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