41 lines
868 B
JavaScript
41 lines
868 B
JavaScript
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const version = 9
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/*
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This migration breaks out the CurrencyController substate
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*/
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const merge = require('deep-merge')
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module.exports = {
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version,
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migrate: function (versionedData) {
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versionedData.meta.version = version
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try {
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const state = versionedData.data
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const newState = transformState(state)
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versionedData.data = newState
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} catch (err) {
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console.warn(`MetaMask Migration #${version}` + err.stack)
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}
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return Promise.resolve(versionedData)
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},
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}
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function transformState (state) {
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const newState = merge(state, {
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CurrencyController: {
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currentCurrency: state.currentFiat || 'USD',
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conversionRate: state.conversionRate,
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conversionDate: state.conversionDate,
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},
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})
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delete newState.currentFiat
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delete newState.conversionRate
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delete newState.conversionDate
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return newState
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}
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