query.js
5.77 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
"use strict";
var Utils = require("../../utils")
, AbstractQuery = require('../abstract/query')
, DataTypes = require('../../data-types')
, hstore = require('./hstore')
, QueryTypes = require('../../query-types')
, Promise = require('../../promise')
module.exports = (function() {
var Query = function(client, sequelize, callee, options) {
this.client = client
this.sequelize = sequelize
this.callee = callee
this.options = Utils._.extend({
logging: console.log,
plain: false,
raw: false
}, options || {})
this.checkLoggingOption()
}
Utils.inherit(Query, AbstractQuery)
Query.prototype.run = function(sql) {
this.sql = sql
var self = this
, receivedError = false
, query = this.client.query(sql)
, rows = []
if (this.options.logging !== false) {
this.sequelize.log('Executing (' + this.options.uuid + '): ' + this.sql)
}
return new Promise(function (resolve, reject) {
var promise = this;
query.on('row', function(row) {
rows.push(row)
})
query.on('error', function(err) {
receivedError = true
err.sql = sql
promise.emit('sql', sql, self.options.uuid)
reject(err);
})
query.on('end', function(result) {
if (receivedError) {
return;
}
promise.emit('sql', self.sql, self.options.uuid)
resolve([rows, sql, result]);
})
}).spread(function (rows, sql, result) {
var results = rows
, isTableNameQuery = (sql.indexOf('SELECT table_name FROM information_schema.tables') === 0)
, isRelNameQuery = (sql.indexOf('SELECT relname FROM pg_class WHERE oid IN') === 0)
if (isTableNameQuery || isRelNameQuery) {
if (isRelNameQuery) {
results = rows.map(function(row) {
return {
name: row.relname,
tableName: row.relname.split('_')[0]
}
})
} else {
results = rows.map(function(row) { return Utils._.values(row) })
}
return results
}
if (self.send('isSelectQuery')) {
if (self.sql.toLowerCase().indexOf('select c.column_name') === 0) {
result = {}
rows.forEach(function(_result) {
result[_result.Field] = {
type: _result.Type.toUpperCase(),
allowNull: (_result.Null === 'YES'),
defaultValue: _result.Default,
special: (!!_result.special ? self.sequelize.queryInterface.QueryGenerator.fromArray(_result.special) : [])
}
if (result[_result.Field].type === 'BOOLEAN') {
result[_result.Field].defaultValue = { 'false': false, 'true': true }[result[_result.Field].defaultValue]
if (result[_result.Field].defaultValue === undefined) {
result[_result.Field].defaultValue = null
}
}
if (typeof result[_result.Field].defaultValue === 'string') {
result[_result.Field].defaultValue = result[_result.Field].defaultValue.replace(/'/g, "")
if (result[_result.Field].defaultValue.indexOf('::') > -1) {
var split = result[_result.Field].defaultValue.split('::')
if (split[1].toLowerCase() !== "regclass)") {
result[_result.Field].defaultValue = split[0]
}
}
}
})
return result
} else {
// Postgres will treat tables as case-insensitive, so fix the case
// of the returned values to match attributes
if (self.options.raw === false && self.sequelize.options.quoteIdentifiers === false) {
var attrsMap = Utils._.reduce(self.callee.attributes, function(m, v, k) { m[k.toLowerCase()] = k; return m}, {})
rows.forEach(function(row) {
Utils._.keys(row).forEach(function(key) {
var targetAttr = attrsMap[key]
if (targetAttr != key) {
row[targetAttr] = row[key]
delete row[key]
}
})
})
}
// Parse hstore fields if the model has any hstore fields.
// This cannot be done in the 'pg' lib because hstore is a UDT.
if (!!self.callee && !!self.callee._hasHstoreAttributes) {
rows.forEach(function(row) {
Utils._.keys(row).forEach(function(key) {
if (self.callee._isHstoreAttribute(key)) {
row[key] = hstore.parse(row[key])
}
})
})
}
return self.send('handleSelectQuery', rows)
}
} else if (self.send('isShowOrDescribeQuery')) {
return results
} else if ([QueryTypes.BULKUPDATE, QueryTypes.BULKDELETE].indexOf(self.options.type) !== -1) {
return result.rowCount
} else if (self.send('isInsertQuery') || self.send('isUpdateQuery')) {
if (self.callee !== null) { // may happen for bulk inserts or bulk updates
for (var key in rows[0]) {
if (rows[0].hasOwnProperty(key)) {
var record = rows[0][key]
if (!!self.callee.Model && !!self.callee.Model.rawAttributes && !!self.callee.Model.rawAttributes[key] && !!self.callee.Model.rawAttributes[key].type && self.callee.Model.rawAttributes[key].type.toString() === DataTypes.HSTORE.toString()) {
record = hstore.parse(record)
}
self.callee.dataValues[key] = record
}
}
}
return self.callee
} else {
return results
}
})
return this
}
Query.prototype.getInsertIdField = function() {
return 'id'
}
return Query
})()