query.js
4.78 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
var Utils = require("../../utils")
, AbstractQuery = require('../abstract/query')
module.exports = (function() {
var Query = function(database, sequelize, callee, options) {
this.database = database
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.getInsertIdField = function() {
return 'lastID'
}
Query.prototype.run = function(sql) {
var self = this
this.sql = sql
if (this.options.logging !== false) {
this.options.logging('Executing (' + this.options.uuid + '): ' + this.sql)
}
var columnTypes = {}
this.database.serialize(function() {
var executeSql = function() {
self.database[getDatabaseMethod.call(self)](self.sql, function(err, results) {
// allow clients to listen to sql to do their own logging or whatnot
self.emit('sql', self.sql)
this.columnTypes = columnTypes;
err ? onFailure.call(self, err) : onSuccess.call(self, results, this)
})
};
if ((getDatabaseMethod.call(self) === 'all') && /select\s.*?\sfrom\s+([^ ;]+)/i.test(self.sql)) {
var tableName = RegExp.$1;
if (tableName !== 'sqlite_master') {
// get the column types
self.database.all("PRAGMA table_info(" + tableName + ")", function(err, results) {
if (!err) {
for (var i=0, l=results.length; i<l; i++) {
columnTypes[results[i].name] = results[i].type
}
}
executeSql()
});
} else {
executeSql()
}
} else {
executeSql()
}
})
return this
}
//private
var getDatabaseMethod = function() {
if (this.send('isInsertQuery') || this.send('isUpdateQuery') || (this.sql.toLowerCase().indexOf('CREATE TEMPORARY TABLE'.toLowerCase()) !== -1)) {
return 'run'
} else {
return 'all'
}
}
var onSuccess = function(results, metaData) {
var result = this.callee
// add the inserted row id to the instance
if (this.send('isInsertQuery', results, metaData)) {
this.send('handleInsertQuery', results, metaData)
}
if (this.sql.indexOf('sqlite_master') !== -1) {
result = results.map(function(resultSet) { return resultSet.name })
} else if (this.send('isSelectQuery')) {
if(!this.options.raw) {
results = results.map(function(result) {
for (var name in result) {
if (result.hasOwnProperty(name) && metaData.columnTypes[name]) {
if (metaData.columnTypes[name] === 'DATETIME') {
// we need to convert the timestamps into actual date objects
var val = result[name]
if (val !== null) {
result[name] = new Date(val+'Z') // Z means UTC
}
} else if (metaData.columnTypes[name].lastIndexOf('BLOB') !== -1) {
result[name] = new Buffer(result[name])
}
}
}
return result
})
}
result = this.send('handleSelectQuery', results)
} else if (this.send('isShowOrDescribeQuery')) {
result = results
} else if (this.sql.indexOf('PRAGMA INDEX_LIST') !== -1) {
// this is the sqlite way of getting the indexes of a table
result = results.map(function(result) {
return {
name: result.name,
tableName: result.name.split('_')[0],
unique: (result.unique === 0)
}
})
} else if (this.sql.indexOf('PRAGMA TABLE_INFO') !== -1) {
// this is the sqlite way of getting the metadata of a table
result = {}
results.forEach(function(_result) {
result[_result.name] = {
type: _result.type,
allowNull: (_result.notnull === 0),
defaultValue: _result.dflt_value
}
if (result[_result.name].type === 'TINYINT(1)') {
result[_result.name].defaultValue = { '0': false, '1': true }[result[_result.name].defaultValue]
}
if (result[_result.name].defaultValue === undefined) {
result[_result.name].defaultValue = null
}
if (typeof result[_result.name].defaultValue === 'string') {
result[_result.name].defaultValue = result[_result.name].defaultValue.replace(/'/g, "")
}
})
} else if (this.sql.indexOf('PRAGMA foreign_keys;') !== -1) {
result = results[0]
} else if (this.sql.indexOf('PRAGMA foreign_keys') !== -1) {
result = results
}
this.emit('success', result)
}
var onFailure = function(err) {
this.emit('error', err, this.callee)
}
return Query
})()