Initial commit

node_modules/node-mysql/test/example_model.js

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+
+var cps = require('cps');
+var Class = require('better-js-class');
+var $U = require('underscore');
+
+var db = require('../lib/node-mysql.js');
+var DB = db.DB;
+
+
+var cb = function() {
+    var handleError = function(e) {
+        if (e.stack) {
+            console.log(e.stack);
+        } else {
+            console.log(e);
+        }
+    };
+
+    var start = new Date();
+    return function(err, res) {
+        try {
+            var end = new Date();
+            console.log('time spent: ', end-start);
+            if (err) {
+                handleError(err);
+            } else {
+                console.log(res);
+            }
+        } catch(e) {
+            handleError(e);
+        } finally {
+            // dw.end();
+        }
+    };
+}();
+
+var dw = new db.DB({
+    host     : 'localhost',
+    user     : 'root',
+    password : '',
+    database : 'data_warehouse_dev'
+});
+
+var Model = function() {
+    var cls = {
+    };
+
+    var Row = Class(db.Row, {
+        _init: function(data) {
+            this.parent._init.call(this, data, {
+                table: Table
+            });
+        }
+    });
+
+    var TableClass = Class(db.Table, {
+    });
+
+    var Table = new TableClass({
+        'name': 'subscription_initiation',
+        'idFieldName': 'id',
+        'rowClass': Row,
+        'db': dw
+    });
+
+    $U.extend(cls, {
+        Row: Row,
+        Table: Table
+    });
+
+    return cls;
+}();
+
+
+var findAndUpdateTest = function(cb) {
+    dw.connect(function(conn, cb) {
+        var o;
+        cps.seq([
+            function(_, cb) {
+                var q = Model.Table.baseQuery('order by date_created desc limit 1');
+                console.log(q);
+                Model.Table.find(conn, q, cb);
+            },
+            function(res, cb) {
+                o = res[0];
+                var dto = {
+                    'first_shipment_id': 300,
+                    'junk': function() {}
+                };
+                o.update(conn, dto, cb);
+            },
+            function(res, cb) {
+                console.log(res);
+                cb();
+            }
+        ], cb);
+    }, cb);
+};
+
+
+var getSampleDto = function() {
+    return {
+        id: 46585,
+        user_id: '1',
+        subscription_id: '1',
+        order_id: '1',
+        product_id: '1',
+        init_date: new Date(),
+        subscription_status: 'inactive',
+        date_created: new Date(),
+        last_updated: new Date(),
+        version: 100
+    }
+};
+
+var createTest = function(cb) {
+    dw.connect(function(conn, cb) {
+        cps.seq([
+            function(_, cb) {
+                Model.Table.clone(conn, getSampleDto(), cb);
+            },
+            function(res, cb) {
+                console.log(res);
+                cb();
+            }
+        ], cb);
+    }, cb);
+};
+
+var txnTest = function(cb) {
+    var add2Rows = function(conn, b, cb) {
+        dw.transaction(conn, function(conn, cb) {
+            cps.seq([
+                function(_, cb) {
+                    Model.Table.create(conn, getSampleDto(), cb);
+                },
+                function(_, cb) {
+                    dw.transaction(conn, function(conn, cb) {
+                        Model.Table.create(conn, getSampleDto(), cb);
+                    }, cb);
+                },
+                function(_, cb) {
+                    if (b) {
+                        cb(null, "Commit");
+                    } else {
+                        throw new Error("Roll back");
+                    }
+                }
+            ], cb);
+        }, cb);
+
+    };
+
+    dw.connect(function(conn, cb) {
+        // dw.transaction(conn, function(conn, cb) {
+            cps.seq([
+                function(_, cb) {
+                    add2Rows(conn, true, cb);
+                },
+                function(_, cb) {
+                    add2Rows(conn, true, cb);
+                }
+            ], cb);
+        // }, cb);
+    }, cb);
+};
+
+var lockTest = function(cb) {
+    var id = 74;
+
+    var exclusiveUpdate = function(conn, delay, value, cb) {
+        dw.transaction(conn, function(conn, cb) {
+            cps.seq([
+                function(_, cb) {
+                    console.log('start to lock: ' + value);
+                    Model.Table.lockById(conn, id, cb);
+                },
+                function(res, cb) {
+                    console.log('locked to update to: ' + value);
+                    setTimeout(function() {
+                        cb(null, res);
+                    }, delay);
+                },
+                function(row, cb) {
+                    if (value == 'foo1') {
+                        row.update(conn, {'product_id': 50}, cb);
+                    } else {
+                        row.update(conn, {'subscription_status': value}, cb);
+                    }
+                },
+                function(res, cb) {
+                    console.log('updated with value: ' + value);
+                    console.log(res);
+                    cb();
+                }
+            ], cb)
+        }, cb);
+    };
+
+    var conn;
+
+    dw.connect(function(conn, cb) {
+        cps.seq([
+            function(_, cb) {
+                cps.parallel([
+                    function(cb) {
+                        exclusiveUpdate(conn, 2000, 'foo1', cb);
+                    },
+                    function(cb) {
+                        exclusiveUpdate(conn, 0, 'bar1', cb);
+                    }
+                ], cb);
+            },
+            function(res, cb) {
+                console.log(res);
+                cb();
+            }
+        ], cb);
+    }, cb);
+};
+
+
+createTest(cb);