waterline-postgresql
Version:
PostgreSQL Adapter for Sails and Waterline
139 lines (108 loc) • 4.17 kB
JavaScript
var _ = require('lodash')
var inherits = require('inherits')
var assign = require('lodash/object/assign')
var utils = require('../utils')
var Raw = require('../../../raw')
var ColumnCompiler = require('../../../schema/columncompiler')
// Column Compiler
// -------
function ColumnCompiler_Oracle() {
this.modifiers = ['defaultTo', 'checkIn', 'nullable', 'comment'];
ColumnCompiler.apply(this, arguments);
}
inherits(ColumnCompiler_Oracle, ColumnCompiler);
assign(ColumnCompiler_Oracle.prototype, {
// helper function for pushAdditional in increments() and bigincrements()
_createAutoIncrementTriggerAndSequence: function () {
// TODO Add warning that sequence etc is created
this.pushAdditional(function () {
var sequenceName = this.tableCompiler._indexCommand('seq', this.tableCompiler.tableNameRaw);
var triggerName = this.tableCompiler._indexCommand('trg', this.tableCompiler.tableNameRaw, this.getColumnName());
var tableName = this.tableCompiler.tableName();
var columnName = this.formatter.wrap(this.getColumnName());
var createTriggerSQL = 'create or replace trigger ' + triggerName + ' before insert on ' + tableName +
' for each row' +
' when (new.' + columnName + ' is null) ' +
' begin' +
' select ' + sequenceName + '.nextval into :new.' + columnName + ' from dual;' +
' end;';
this.pushQuery(utils.wrapSqlWithCatch('create sequence ' + sequenceName, -955));
this.pushQuery(createTriggerSQL);
});
},
increments: function () {
this._createAutoIncrementTriggerAndSequence();
return 'integer not null primary key';
},
bigincrements: function () {
this._createAutoIncrementTriggerAndSequence();
return 'number(20, 0) not null primary key';
},
floating: function(precision) {
var parsedPrecision = this._num(precision, 0);
return 'float' + (parsedPrecision ? '(' + parsedPrecision + ')' : '');
},
double: function(precision, scale) {
// if (!precision) return 'number'; // TODO: Check If default is ok
return 'number(' + this._num(precision, 8) + ', ' + this._num(scale, 2) + ')';
},
integer: function(length) {
return length ? 'number(' + this._num(length, 11) + ')' : 'integer';
},
tinyint: 'smallint',
smallint: 'smallint',
mediumint: 'integer',
biginteger: 'number(20, 0)',
text: 'clob',
enu: function (allowed) {
allowed = _.uniq(allowed);
var maxLength = (allowed || []).reduce(function (maxLength, name) {
return Math.max(maxLength, String(name).length);
}, 1);
// implicitly add the enum values as checked values
this.columnBuilder._modifiers.checkIn = [allowed];
return "varchar2(" + maxLength + ")";
},
time: 'timestamp with time zone',
datetime: function(without) {
return without ? 'timestamp' : 'timestamp with time zone';
},
timestamp: function(without) {
return without ? 'timestamp' : 'timestamp with time zone';
},
bit: 'clob',
json: 'clob',
bool: function () {
// implicitly add the check for 0 and 1
this.columnBuilder._modifiers.checkIn = [[0, 1]];
return 'number(1, 0)';
},
varchar: function(length) {
return 'varchar2(' + this._num(length, 255) + ')';
},
// Modifiers
// ------
comment: function(comment) {
this.pushAdditional(function() {
this.pushQuery('comment on column ' + this.tableCompiler.tableName() + '.' +
this.formatter.wrap(this.args[0]) + " is '" + (comment || '')+ "'");
}, comment);
},
checkIn: function (value) {
// TODO: Maybe accept arguments also as array
// TODO: value(s) should be escaped properly
if (value === undefined) {
return '';
} else if (value instanceof Raw) {
value = value.toQuery();
} else if (Array.isArray(value)) {
value = _.map(value, function (v) {
return "'" + v + "'";
}).join(', ');
} else {
value = "'" + value + "'";
}
return 'check (' + this.formatter.wrap(this.args[0]) + ' in (' + value + '))';
}
});
module.exports = ColumnCompiler_Oracle;