44 lines
1.3 KiB
JavaScript
44 lines
1.3 KiB
JavaScript
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// Convert a form to an object literal
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module.exports = function(form) {
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if(form === undefined) throw new Error("form is undefined")
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var result = {}
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var fields = toArr(form.querySelectorAll('input, textarea, select'))
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.filter(function(n) { return n.hasAttribute('name') })
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.map(function(n) {
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var name = n.getAttribute('name')
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var keys = n.getAttribute('name').split('.')
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if(n.value && n.value.toString().length) { // won't set empty strings for empty vals
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if(n.getAttribute('type') === 'checkbox') {
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deepSet(keys, n.checked, result)
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} else if(n.getAttribute('type') === 'radio') {
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if(n.checked) deepSet(keys, n.value, result)
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} else {
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deepSet(keys, n.value, result)
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}
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}
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})
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return result
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}
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function toArr(x) { return Array.prototype.slice.call(x) }
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// Given an array of nested keys, a value, and a target object:
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// Set the value into the object at the last nested key
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function deepSet(keys, val, obj, options) {
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var exceptLast = keys.slice(0, keys.length-1)
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var last = keys[keys.length-1]
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var nested = exceptLast.reduce(function(nestedObj, key) {
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if(nestedObj[key] === undefined) {
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nestedObj[key] = {}
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return nestedObj[key]
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} else {
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return nestedObj[key]
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}
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}, obj)
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// if(nested[last] === undefined) nested[last] = {}
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nested[last] = val
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return obj
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}
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