/
WebSQLStepper.js
165 lines (138 loc) · 4.41 KB
/
WebSQLStepper.js
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
(function() {
/*
# Copyright (c) 2012 Patrick Mueller
#
# Licensed under the Apache License, Version 2.0 (the 'License');
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an 'AS IS' BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
*/
var LibraryName, Stepper, Transaction, WebSQLStepper;
WebSQLStepper = (function() {
function WebSQLStepper() {}
WebSQLStepper.prototype.transaction = function(db, steps) {
var stepper;
stepper = new Stepper(db, steps);
return stepper.run();
};
return WebSQLStepper;
})();
window.WebSQLStepper = new WebSQLStepper();
LibraryName = WebSQLStepper.name;
Transaction = (function() {
function Transaction(stepper) {
var _this = this;
this.stepper = stepper;
this.successCB = function(tx, resultSet) {
return _this.stepper.nextStep(tx, null, resultSet);
};
this.errorCB = function(tx, sqlError) {
return _this.stepper.nextStep(tx, sqlError, null);
};
}
Transaction.prototype.executeSql = function(sqlStatement, arguments) {
return this.stepper.sqlTx.executeSql(sqlStatement, arguments, this.successCB, this.errorCB);
};
return Transaction;
})();
Stepper = (function() {
function Stepper(db, steps) {
var locus;
this.db = db;
this.steps = steps;
this.index = -1;
this.stepFns = this.getStepFunctions();
locus = "initialization";
if (this.stepFns.length === 0) {
this.error("no step# methods found in Steps object", locus);
}
if (typeof this.steps.success !== 'function') {
this.error("no success method found in Steps object", locus);
}
if (typeof this.steps.error !== 'function') {
this.error("no error method found in Steps object", locus);
}
}
Stepper.prototype.run = function() {
var errorCB, statementCB, successCB;
var _this = this;
statementCB = function(tx) {
return _this.nextStep(tx);
};
successCB = function() {
return _this.txSuccessCB();
};
errorCB = function(sqlError) {
return _this.txErrorCB(sqlError);
};
this.transaction = new Transaction(this);
return this.db.transaction(statementCB, errorCB, successCB);
};
Stepper.prototype.nextStep = function(sqlTx, sqlError, resultSet) {
var stepFn;
this.sqlTx = sqlTx;
this.index++;
stepFn = this.stepFns[this.index];
if (!stepFn) return;
try {
return stepFn.call(this.steps, this.transaction, sqlError, resultSet);
} catch (e) {
return this.error(e, "step" + (1 + this.index) + "()");
}
};
Stepper.prototype.txSuccessCB = function() {
try {
return this.steps.success.call(this.steps);
} catch (e) {
return this.error(e, 'success()');
}
};
Stepper.prototype.txErrorCB = function(sqlError) {
try {
return this.steps.error.call(this.steps, sqlError);
} catch (e) {
return this.error(e, 'error()');
}
};
Stepper.prototype.error = function(e, locus) {
var message, stack;
message = "" + LibraryName + ": exception during " + (this.getLocus(locus)) + ": " + e;
console.log(message);
stack = e.stack;
if (stack) console.log(stack);
throw e;
};
Stepper.prototype.getLocus = function(locus) {
return "" + (this.getStepperName()) + "." + locus;
};
Stepper.prototype.getStepperName = function() {
var name;
name = this.steps.stepsName;
if (name) return "" + name;
name = this.steps.constructor.name;
if (name !== 'Object') return "" + name;
return "?";
};
Stepper.prototype.getStepFunctions = function() {
var fn, index, name, result;
result = [];
index = 0;
while (true) {
index++;
name = "step" + index;
fn = this.steps[name];
if (typeof fn !== 'function') break;
result.push(fn);
}
return result;
};
return Stepper;
})();
}).call(this);