3f535f30
 杨鑫
'初始'
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/**
* 判断是否是对象
*
* @export
* @param {*} val
* @returns true/false
*/
export function isObject (val) {
return Object.prototype.toString.call(val) === '[object Object]'
}
/**
* 判断是否是Function
*
* @export
* @param {*} val
* @returns true/false
*/
export function isFunction (val) {
return Object.prototype.toString.call(val) === '[object Function]'
}
/**
* 根据value获取columns信息
*
* @export
* @param {*} { value, list, mode, props, level }
* @param {number} [type=2] 查询不到value数据返回数据类型 1空值null 2默认第一个选项
* @returns
*/
export function getColumns ({ value, list, mode, props, level }, type = 2) {
let pickerValue = []
let pickerColumns = []
let selectValue = []
let selectItem = []
let columnsInfo = null
switch (mode) {
case 'selector':
let index = list.findIndex(item => {
return isObject(item) ? item[props.value] === value : item === value
})
if (index === -1 && type === 1) {
columnsInfo = null
} else {
index = index > -1 ? index : 0
selectItem = list[index]
selectValue = isObject(selectItem)
? selectItem[props.value]
: selectItem
pickerColumns = list
pickerValue = [index]
columnsInfo = {
index: pickerValue,
value: selectValue,
item: selectItem,
columns: pickerColumns
}
}
break
case 'multiSelector':
const setPickerItems = (data = [], index = 0) => {
if (!data.length) return
const defaultValue = value || []
if (index < level) {
const value = defaultValue[index] || ''
let i = data.findIndex(item => item[props.value] === value)
if (i === -1 && type === 1) return
i = i > -1 ? i : 0
pickerValue[index] = i
pickerColumns[index] = data
if (data[i]) {
selectValue[index] = data[i][props.value]
selectItem[index] = data[i]
setPickerItems(data[i][props.children] || [], index + 1)
}
}
}
setPickerItems(list)
if (!selectValue.length && type === 1) {
columnsInfo = null
} else {
columnsInfo = {
index: pickerValue,
value: selectValue,
item: selectItem,
columns: pickerColumns
}
}
break
case 'unlinkedSelector':
list.forEach((item, i) => {
let index = item.findIndex(item => {
return isObject(item)
? item[props.value] === value[i]
: item === value[i]
})
if (index === -1 && type === 1) return
index = index > -1 ? index : 0
const columnItem = list[i][index]
const valueItem = isObject(columnItem)
? columnItem[props.value]
: columnItem
pickerValue[i] = index
selectValue[i] = valueItem
selectItem[i] = columnItem
})
pickerColumns = list
if (!selectValue.length && type === 1) {
columnsInfo = null
} else {
columnsInfo = {
index: pickerValue,
value: selectValue,
item: selectItem,
columns: pickerColumns
}
}
break
}
return columnsInfo
}
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