siimee/backend/db/seeds/10-scores.js

const aspects = require('../generated/prescore_matrix.json')

exports.seed = function (knex) {
    // Deletes ALL existing entries
    return knex('prescored_aspects')
        .truncate()
        .then(function () {
            let rowCount = 1
            const makeRow = scores => {
                scoreMap = {}
                scores.forEach((score, i) => {
                    scoreMap['aspect_id'] = rowCount
                    scoreMap[i + 1] = score
                })
                return scoreMap
            }
            
            const rows = []
            Object.values(aspects).forEach(rowOfScores => {
                if(Array.isArray(rowOfScores)) {
                    const row = makeRow(rowOfScores)
                    rows.push(row)
                    rowCount++
                }
            })
            // Inserts seed entries
            return knex('prescored_aspects').insert(rows)
        })
}