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schema.js
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schema.js
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const is = require('is')
class Schema {
constructor() {
this.filters = new Map()
this.sorts = new Map()
this.page(false)
}
filter(field, operator, options = {}) {
this.filters.set(`${field}[${operator}]`, {
field,
operator,
options,
})
return this
}
sort(field, options = {}) {
this.sorts.set(field, {
field,
options,
})
return this
}
page(isEnabledOrOptions = true) {
if (is.bool(isEnabledOrOptions)) {
this.pageOptions = { isEnabled: isEnabledOrOptions }
} else {
this.pageOptions = {
...isEnabledOrOptions,
isEnabled:
isEnabledOrOptions.isEnabled !== undefined
? isEnabledOrOptions.isEnabled
: true,
}
}
return this
}
mapFilterFieldsToOperators() {
const filters = Array.from(this.filters.values())
return filters.reduce((accumulator, filter) => {
if (!accumulator[filter.field]) {
accumulator[filter.field] = []
}
accumulator[filter.field].push(filter.operator)
return accumulator
}, {})
}
}
module.exports = Schema