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feat: change static from Convention class for create a new instance a…
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,16 +1,14 @@ | ||
| module.exports = class Convention { | ||
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| static camelToSnake(string) { | ||
| return string.replace(/([A-Z])/g, "_$1").toLowerCase() | ||
| } | ||
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| static toTableFieldName(entityField) { | ||
| return this.camelToSnake(entityField) | ||
| } | ||
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| static isScalarType(type) { | ||
| const scalarTypes = [Number, String, Boolean, Date, Object, Array] | ||
| return scalarTypes.includes(type) | ||
| } | ||
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| } | ||
| camelToSnake (string) { | ||
| return string.replace(/([A-Z])/g, '_$1').toLowerCase() | ||
| } | ||
|
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| toTableFieldName (entityField) { | ||
| return this.camelToSnake(entityField) | ||
| } | ||
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| isScalarType (type) { | ||
| const scalarTypes = [Number, String, Boolean, Date, Object, Array] | ||
| return scalarTypes.includes(type) | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,129 +1,129 @@ | ||
| const Convention = require('./convention') | ||
| const { entity } = require('@herbsjs/gotu') | ||
| const dependency = { convention: Convention } | ||
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| class DataMapper { | ||
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| constructor(entity, entityIDs = [], foreignKeys = [], options = {}) { | ||
| const di = Object.assign({}, dependency, options.injection) | ||
| this.convention = di.convention | ||
| this.entity = entity | ||
| const schema = entity.prototype.meta.schema | ||
| this.allFields = DataMapper.buildAllFields(schema, entityIDs, foreignKeys, this.convention) | ||
| this._proxy === undefined | ||
| } | ||
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| toEntity(payload) { | ||
| if (this._proxy === undefined) this._proxy = this.buildProxy() | ||
| this._proxy.load(payload) | ||
| return this.entity.fromJSON(this._proxy, { allowExtraKeys: true }) | ||
| constructor (entity, entityIDs = [], foreignKeys = [], options = {}) { | ||
| this.convention = Object.assign(new Convention(), options.convention) | ||
| this.entity = entity | ||
| const schema = entity.prototype.meta.schema | ||
| this.allFields = DataMapper.buildAllFields( | ||
| schema, | ||
| entityIDs, | ||
| foreignKeys, | ||
| this.convention | ||
| ) | ||
| this._proxy === undefined | ||
| } | ||
|
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| toEntity (payload) { | ||
| if (this._proxy === undefined) this._proxy = this.buildProxy() | ||
| this._proxy.load(payload) | ||
| return this.entity.fromJSON(this._proxy, { allowExtraKeys: true }) | ||
| } | ||
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| static buildAllFields (schema, entityIDs, foreignKeys, convention) { | ||
| function fieldType (type) { | ||
| if (Array.isArray(type)) return fieldType(type[0]) | ||
| return type | ||
| } | ||
|
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| static buildAllFields(schema, entityIDs, foreignKeys, convention) { | ||
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| function fieldType(type) { | ||
| if (Array.isArray(type)) return fieldType(type[0]) | ||
| return type | ||
| } | ||
|
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| const fields = Object.keys(schema) | ||
| .map((field) => { | ||
| if (typeof schema[field] === 'function') return { type: Function } | ||
| const isArray = Array.isArray(schema[field].type) | ||
| const type = fieldType(schema[field].type) | ||
| const isEntity = entity.isEntity(type) | ||
| const nameDb = convention.toTableFieldName(field) | ||
| const isID = entityIDs.includes(field) | ||
| return { name: field, type, isEntity, nameDb, isArray, isID } | ||
| }) | ||
|
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| const fkFields = foreignKeys.flatMap((fks) => { | ||
| return Object.keys(fks).map((field) => { | ||
| const isArray = Array.isArray(fks[field]) | ||
| const type = fieldType(fks[field]) | ||
| const isEntity = entity.isEntity(type) | ||
| const nameDb = convention.toTableFieldName(field) | ||
| return { name: field, type, isEntity, nameDb, isArray, isFk: true } | ||
| }) | ||
| }) | ||
|
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| const allFields = fields.concat(fkFields).filter((f) => f.type !== Function) | ||
|
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| return allFields | ||
| const fields = Object.keys(schema).map(field => { | ||
| if (typeof schema[field] === 'function') return { type: Function } | ||
| const isArray = Array.isArray(schema[field].type) | ||
| const type = fieldType(schema[field].type) | ||
| const isEntity = entity.isEntity(type) | ||
| const nameDb = convention.toTableFieldName(field) | ||
| const isID = entityIDs.includes(field) | ||
| return { name: field, type, isEntity, nameDb, isArray, isID } | ||
| }) | ||
|
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| const fkFields = foreignKeys.flatMap(fks => { | ||
| return Object.keys(fks).map(field => { | ||
| const isArray = Array.isArray(fks[field]) | ||
| const type = fieldType(fks[field]) | ||
| const isEntity = entity.isEntity(type) | ||
| const nameDb = convention.toTableFieldName(field) | ||
| return { name: field, type, isEntity, nameDb, isArray, isFk: true } | ||
| }) | ||
| }) | ||
|
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| const allFields = fields.concat(fkFields).filter(f => f.type !== Function) | ||
|
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| return allFields | ||
| } | ||
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| toTableFieldName (entityFieldName) { | ||
| return this.convention.toTableFieldName(entityFieldName) | ||
| } | ||
|
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| tableIDs () { | ||
| return this.allFields | ||
| .filter(i => i.isID) | ||
| .map(i => this.convention.toTableFieldName(i.name)) | ||
| } | ||
|
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| tableFields () { | ||
| return this.allFields.filter(i => !i.isEntity).map(i => i.nameDb) | ||
| } | ||
|
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| tableFieldsWithValue (instance) { | ||
| return this.allFields | ||
| .filter(i => !i.isEntity) | ||
| .map(i => ({ [i.nameDb]: instance[i.name] })) | ||
| .reduce((x, y) => ({ ...x, ...y })) | ||
| } | ||
|
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| buildProxy () { | ||
| function getDataParser (type, isArray) { | ||
| function arrayDataParser (value, parser) { | ||
| if (value === null) return null | ||
| return value.map(i => parser(i)) | ||
| } | ||
|
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| function dataParser (value, parser) { | ||
| if (value === null) return null | ||
| return parser(value) | ||
| } | ||
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| if (isArray) { | ||
| const parser = getDataParser(type, false) | ||
| return value => arrayDataParser(value, parser) | ||
| } | ||
|
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| if (type === Date || !convention.isScalarType(type)) return x => x | ||
|
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| return value => dataParser(value, type) | ||
| } | ||
|
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| toTableFieldName(entityFieldName) { | ||
| return this.convention.toTableFieldName(entityFieldName) | ||
| } | ||
|
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| tableIDs() { | ||
| return this.allFields.filter((i) => i.isID).map(i => this.convention.toTableFieldName(i.name)) | ||
| } | ||
|
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| tableFields() { | ||
| return this.allFields | ||
| .filter((i) => !i.isEntity) | ||
| .map((i) => i.nameDb) | ||
| } | ||
|
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| tableFieldsWithValue(instance) { | ||
| return this.allFields | ||
| .filter((i) => !i.isEntity) | ||
| .map(i => ({ [i.nameDb]: instance[i.name] })) | ||
| .reduce((x, y) => ({ ...x, ...y })) | ||
| } | ||
|
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| buildProxy() { | ||
|
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| function getDataParser(type, isArray) { | ||
| function arrayDataParser(value, parser) { | ||
| if (value === null) return null | ||
| return value.map((i) => parser(i)) | ||
| } | ||
|
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| function dataParser(value, parser) { | ||
| if (value === null) return null | ||
| return parser(value) | ||
| } | ||
|
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| if (isArray) { | ||
| const parser = getDataParser(type, false) | ||
| return (value) => arrayDataParser(value, parser) | ||
| } | ||
|
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| if ((type === Date) || (!convention.isScalarType(type))) | ||
| return (x) => x | ||
|
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| return (value) => dataParser(value, type) | ||
| } | ||
|
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| const convention = this.convention | ||
| const proxy = {} | ||
|
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| Object.defineProperty(proxy, '_payload', { | ||
| enumerable: false, | ||
| writable: true, | ||
| value: null | ||
| }) | ||
|
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| Object.defineProperty(proxy, 'load', { | ||
| enumerable: false, | ||
| value: function load(payload) { this._payload = payload }, | ||
| }) | ||
|
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| for (const field of this.allFields) { | ||
| const parser = getDataParser(field.type, field.isArray) | ||
| const nameDb = field.nameDb | ||
| Object.defineProperty(proxy, field.name, { | ||
| enumerable: true, | ||
| get: function () { | ||
| if (field.isEntity) return undefined | ||
| return parser(this._payload[nameDb]) | ||
| } | ||
| }) | ||
| const convention = this.convention | ||
| const proxy = {} | ||
|
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| Object.defineProperty(proxy, '_payload', { | ||
| enumerable: false, | ||
| writable: true, | ||
| value: null | ||
| }) | ||
|
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| Object.defineProperty(proxy, 'load', { | ||
| enumerable: false, | ||
| value: function load (payload) { | ||
| this._payload = payload | ||
| } | ||
| }) | ||
|
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| for (const field of this.allFields) { | ||
| const parser = getDataParser(field.type, field.isArray) | ||
| const nameDb = field.nameDb | ||
| Object.defineProperty(proxy, field.name, { | ||
| enumerable: true, | ||
| get: function () { | ||
| if (field.isEntity) return undefined | ||
| return parser(this._payload[nameDb]) | ||
| } | ||
| return proxy | ||
| }) | ||
| } | ||
| return proxy | ||
| } | ||
| } | ||
|
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| module.exports = DataMapper | ||
| module.exports = DataMapper |
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