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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,144 @@ | ||
| 'use strict'; | ||
|
|
||
| const Types = require('../constants/types.js'); | ||
| const Charsets = require('../constants/charsets.js'); | ||
| const helpers = require('../helpers'); | ||
|
|
||
| const typeNames = []; | ||
| for (const t in Types) { | ||
| typeNames[Types[t]] = t; | ||
| } | ||
|
|
||
| function readField({ packet, type, charset, encoding, config, options }) { | ||
| const supportBigNumbers = | ||
| options.supportBigNumbers || config.supportBigNumbers; | ||
| const bigNumberStrings = options.bigNumberStrings || config.bigNumberStrings; | ||
| const timezone = options.timezone || config.timezone; | ||
| const dateStrings = options.dateStrings || config.dateStrings; | ||
|
|
||
| switch (type) { | ||
| case Types.TINY: | ||
| case Types.SHORT: | ||
| case Types.LONG: | ||
| case Types.INT24: | ||
| case Types.YEAR: | ||
| return packet.parseLengthCodedIntNoBigCheck(); | ||
| case Types.LONGLONG: | ||
| if (supportBigNumbers && bigNumberStrings) { | ||
| return packet.parseLengthCodedIntString(); | ||
| } | ||
| return packet.parseLengthCodedInt(supportBigNumbers); | ||
| case Types.FLOAT: | ||
| case Types.DOUBLE: | ||
| return packet.parseLengthCodedFloat(); | ||
| case Types.NULL: | ||
| // case Types.BIT: | ||
| // return 'packet.readBuffer(2)[1]'; | ||
| case Types.DECIMAL: | ||
| case Types.NEWDECIMAL: | ||
| if (config.decimalNumbers) { | ||
| return packet.parseLengthCodedFloat(); | ||
| } | ||
| return packet.readLengthCodedString("ascii"); | ||
| case Types.DATE: | ||
| if (helpers.typeMatch(type, dateStrings, Types)) { | ||
| return packet.readLengthCodedString("ascii"); | ||
| } | ||
| return packet.parseDate(timezone); | ||
| case Types.DATETIME: | ||
| case Types.TIMESTAMP: | ||
| if (helpers.typeMatch(type, dateStrings, Types)) { | ||
| return packet.readLengthCodedString('ascii'); | ||
| } | ||
| return packet.parseDateTime(timezone); | ||
| case Types.TIME: | ||
| return packet.readLengthCodedString('ascii'); | ||
| case Types.GEOMETRY: | ||
| return packet.parseGeometryValue(); | ||
| case Types.JSON: | ||
| // Since for JSON columns mysql always returns charset 63 (BINARY), | ||
| // we have to handle it according to JSON specs and use "utf8", | ||
| // see https://github.com/sidorares/node-mysql2/issues/409 | ||
| return JSON.parse(packet.readLengthCodedString('utf8')); | ||
| default: | ||
| if (charset === Charsets.BINARY) { | ||
| return packet.readLengthCodedBuffer(); | ||
| } | ||
| return packet.readLengthCodedString(encoding); | ||
| } | ||
| } | ||
|
|
||
| function compile(fields, options, config) { | ||
| if ( | ||
| typeof config.typeCast === 'function' && | ||
| typeof options.typeCast !== 'function' | ||
| ) { | ||
| options.typeCast = config.typeCast; | ||
| } | ||
| } | ||
|
|
||
| function createTypecastField(field, packet) { | ||
| return { | ||
| type: typeNames[field.columnType], | ||
| length: field.columnLength, | ||
| db: field.schema, | ||
| table: field.table, | ||
| name: field.name, | ||
| string: function(encoding = field.encoding) { | ||
| if (field.columnType === Types.JSON && encoding === field.encoding) { | ||
| // Since for JSON columns mysql always returns charset 63 (BINARY), | ||
| // we have to handle it according to JSON specs and use "utf8", | ||
| // see https://github.com/sidorares/node-mysql2/issues/1661 | ||
| console.warn(`typeCast: JSON column "${field.name}" is interpreted as BINARY by default, recommended to manually set utf8 encoding: \`field.string("utf8")\``); | ||
| } | ||
| return packet.readLengthCodedString(encoding); | ||
| }, | ||
| buffer: function() { | ||
| return packet.readLengthCodedBuffer(); | ||
| }, | ||
| geometry: function() { | ||
| return packet.parseGeometryValue(); | ||
| } | ||
| }; | ||
| } | ||
|
|
||
| function getTextParser(fields, options, config) { | ||
| return { | ||
| next(packet, fields, options) { | ||
| const result = options.rowsAsArray ? [] : {}; | ||
| for (let i = 0; i < fields.length; i++) { | ||
| const field = fields[i]; | ||
| const typeCast = options.typeCast ? options.typeCast : config.typeCast; | ||
| const next = () => { | ||
| return readField({ | ||
| packet, | ||
| type: field.columnType, | ||
| encoding: field.encoding, | ||
| charset: field.characterSet, | ||
| config, | ||
| options | ||
| }) | ||
| } | ||
| let value; | ||
| if (typeof typeCast === 'function') { | ||
| value = typeCast(createTypecastField(field, packet), next); | ||
| } else { | ||
| value = next(); | ||
| } | ||
| if (options.rowsAsArray) { | ||
| result.push(value); | ||
| } else if (options.nestTables) { | ||
| if (!result[field.table]) { | ||
| result[field.table] = {}; | ||
| } | ||
| result[field.table][field.name] = value; | ||
| } else { | ||
| result[field.name] = value; | ||
| } | ||
| } | ||
| return result; | ||
| } | ||
| } | ||
| } | ||
|
|
||
| module.exports = getTextParser; |
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