SequelizeHelper.js
3.67 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
SequelizeHelper = {
log: function(obj) {
var sys = require("sys")
sys.puts(sys.inspect(obj))
},
evaluateTemplate: function(template, replacements) {
var result = template
SequelizeHelper.Hash.keys(replacements).forEach(function(key) {
result = result.replace("%{" + key + "}", replacements[key])
})
return result
},
SQL: {
manyToManyTableName: function(t1, t2) {
return [t1.tableName, t2.tableName].sort().join("")
},
asTableIdentifier: function(name) {
return name.toLowerCase().replace(/s$/, "") + "Id"
},
addPrefix: function(prefix, string) {
return prefix + string[0].toUpperCase() + string.replace(/^./, "")
},
asTableName: function(name) {
return name + "s"
},
asSqlDate: function(date) {
return [
[
date.getFullYear(),
((date.getMonth() < 9 ? '0' : '') + (date.getMonth()+1)),
((date.getDate() < 10 ? '0' : '') + date.getDate())
].join("-"),
date.toLocaleTimeString()
].join(" ")
},
valuesForInsertQuery: function(object) {
var actualValues = object.values,
result = []
SequelizeHelper.Hash.forEach(actualValues, function(value, key) {
var dataType = object.table.attributes[key]
result.push(SequelizeHelper.SQL.transformValueByDataType(value, dataType))
})
return result
},
fieldsForInsertQuery: function(object) {
return SequelizeHelper.Hash.keys(object.values).join(", ")
},
transformValueByDataType: function(value, dataType) {
if((value == null)||(typeof value == 'undefined'))
return "NULL"
if(dataType.indexOf(Sequelize.INTEGER) > -1)
return value
if(dataType.indexOf(Sequelize.DATE) > -1)
return ("'" + SequelizeHelper.SQL.asSqlDate(value) + "'")
return ("'" + value + "'")
},
valuesForUpdate: function(object, options) {
var actualValues = object.values,
result = []
options = options || {}
SequelizeHelper.Hash.forEach(actualValues, function(value, key) {
var dataType = object.table.attributes[key]
result.push([key, SequelizeHelper.SQL.transformValueByDataType(value, dataType)].join(" = "))
})
return result.join(options.seperator || ", ")
},
hashToWhereConditions: function(conditions, attributes) {
if(typeof conditions == 'number')
return ('id = ' + conditions)
else {
var result = []
SequelizeHelper.Hash.forEach(conditions, function(value, key) {
result.push(key + "=" + SequelizeHelper.SQL.transformValueByDataType(value, attributes[key]))
})
return result.join(" AND ")
}
}
},
Hash: {
forEach: function(object, func) {
SequelizeHelper.Hash.keys(object).forEach(function(key) {
func(object[key], key, object)
})
},
map: function(object, func) {
var result = []
SequelizeHelper.Hash.forEach(object, function(value, key, object) {
result.push(func(value, key, object))
})
return result
},
keys: function(object) {
var results = []
for (var property in object)
results.push(property)
return results
},
values: function(object) {
var result = []
SequelizeHelper.Hash.keys(object).forEach(function(key) {
result.push(object[key])
})
return result
},
merge: function(source, target, force) {
SequelizeHelper.Hash.forEach(source, function(value, key) {
if(!target[key] || force)
target[key] = value
})
return target
}
}
}