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type analysers for mysql, postgre

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This commit is contained in:
Jan Prochazka
2020-06-26 15:28:44 +02:00
parent 5e0563c42c
commit bf24796899
7 changed files with 81 additions and 23 deletions
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32
packages/engines/mysql/MySqlAnalyser.js
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@@ -3,6 +3,30 @@ const _ = require('lodash');
const sql = require('./sql');
const DatabaseAnalayser = require('../default/DatabaseAnalyser');
const { isTypeString, isTypeNumeric } = require('@dbgate/tools');
function getColumnInfo({
isNullable,
extra,
columnName,
dataType,
charMaxLength,
numericPrecision,
numericScale,
defaultValue,
}) {
let fullDataType = dataType;
if (charMaxLength && isTypeString(dataType)) fullDataType = `${dataType}(${charMaxLength})`;
if (numericPrecision && numericScale && isTypeNumeric(dataType))
fullDataType = `${dataType}(${numericPrecision},${numericScale})`;
return {
notNull: !isNullable,
autoIncrement: extra && extra.toLowerCase().includes('auto_increment'),
columnName,
dataType: fullDataType,
defaultValue,
};
}
class MySqlAnalyser extends DatabaseAnalayser {
constructor(pool, driver) {
@@ -24,13 +48,7 @@ class MySqlAnalyser extends DatabaseAnalayser {
return this.mergeAnalyseResult({
tables: tables.rows.map((table) => ({
...table,
columns: columns.rows
.filter((col) => col.pureName == table.pureName)
.map(({ isNullable, extra, ...col }) => ({
...col,
notNull: !isNullable,
autoIncrement: extra && extra.toLowerCase().includes('auto_increment'),
})),
columns: columns.rows.filter((col) => col.pureName == table.pureName).map(getColumnInfo),
primaryKey: DatabaseAnalayser.extractPrimaryKeys(table, pkColumns.rows),
foreignKeys: DatabaseAnalayser.extractForeignKeys(table, fkColumns.rows),
})),

8
packages/engines/mysql/sql/columns.js
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@@ -4,10 +4,10 @@ select
COLUMN_NAME as columnName,
IS_NULLABLE as isNullable,
DATA_TYPE as dataType,
CHARACTER_MAXIMUM_LENGTH,
NUMERIC_PRECISION,
NUMERIC_SCALE,
COLUMN_DEFAULT,
CHARACTER_MAXIMUM_LENGTH as charMaxLength,
NUMERIC_PRECISION as numericPrecision,
NUMERIC_SCALE as numericScale,
COLUMN_DEFAULT as defaultValue,
EXTRA as extra
from INFORMATION_SCHEMA.COLUMNS
where TABLE_SCHEMA = '#DATABASE#' and TABLE_NAME =[OBJECT_NAME_CONDITION]