From 8c6485155e553000c8491fcf6b0dd25a86a62513 Mon Sep 17 00:00:00 2001
From: "Harish.K" <harish2704@gmail.com>
Date: Tue, 16 Feb 2016 13:01:17 +0530
Subject: [PATCH] Initial commit

---
 data/migration-file.js.ect |  42 ++++++++++++
 src/gen-migrations.js      | 129 +++++++++++++++++++++++++++++++++++++
 2 files changed, 171 insertions(+)
 create mode 100644 data/migration-file.js.ect
 create mode 100644 src/gen-migrations.js

diff --git a/data/migration-file.js.ect b/data/migration-file.js.ect
new file mode 100644
index 0000000..0144b23
--- /dev/null
+++ b/data/migration-file.js.ect
@@ -0,0 +1,42 @@
+/* This file is auto-generated using https://github.com/harish2704/sequelize-migration-generator. */
+
+'use strict';
+
+module.exports = {
+  up: function (queryInterface, Sequelize) {
+    return queryInterface.createTable('<%- @model.tableName %>', {
+<% for field in @model.fields : %>
+      <%- field.name %>: {
+        type: Sequelize.<%- field.type %><%- field.values  %><%- field.length %><%- '.UNSIGNED' if field.unsigned %>,
+<% if field.references?.model : %>
+        references: <%- JSON.stringify field.references %>,
+<% end %>
+<% for opt in @fieldOpts : %>
+<% if not field[opt].isEmpty() : %>
+        <%- opt %> : <%- field[opt] %>,
+<% end %>
+<% end %>
+      },
+
+<% end %>
+    })<% if ( Object.keys @model.uniqueKeys ).length : %>
+<% for keyName, keyOpts of @model.uniqueKeys : %>
+
+    .then( function(){
+      return queryInterface.addIndex(
+        '<%- @model.tableName %>',
+        <%- JSON.stringify keyOpts.fields %>,
+        {
+          indexName: '<%- keyName %>',
+          indicesType: 'UNIQUE'
+        }
+      )
+<% end %>
+    })<% end %>;
+  },
+
+  down: function (queryInterface, Sequelize) {
+    return queryInterface.dropTable( '<%- @model.tableName %>' );
+  }
+};
+
diff --git a/src/gen-migrations.js b/src/gen-migrations.js
new file mode 100644
index 0000000..2896e9b
--- /dev/null
+++ b/src/gen-migrations.js
@@ -0,0 +1,129 @@
+
+var util = require('util');
+
+if( typeof exports == 'undefined' ){ global.exports = {}; }
+
+
+function Val( val ){
+  this.val = val;
+}
+Val.prototype = {
+  isEmpty: function(){
+    if( this.val == null ){
+      return true;
+    }
+    switch ( this.val.constructor.name ) {
+      case 'Boolean':
+        return false;
+      case 'Array':
+        return this.val.length == 0;
+      default:
+        return !Boolean( this.val );
+    }
+  },
+  toString: function(){
+    return this.isEmpty()? '' : this._toCode();
+  },
+  _toCode: function(){
+    return this.toCode ? this.toCode() : this.val;
+  }
+};
+
+
+function QuotedVal( val ){
+  Val.call( this, val );
+}
+util.inherits( QuotedVal, Val );
+QuotedVal.prototype.toCode = function(){
+  return "'" + this.val + "'";
+};
+
+
+function LengthVal( val ){
+  Val.call( this, val );
+}
+util.inherits( LengthVal, Val );
+LengthVal.prototype.toCode = function(){
+  return '( ' + this.val +' )';
+};
+
+
+function ValuesVal( val ){
+  Val.call( this, val );
+}
+util.inherits( ValuesVal, Val );
+ValuesVal.prototype.toCode = function(){
+  return '( ' + JSON.stringify( this.val ).slice(1,-1) +' )';
+};
+
+
+
+function Field( attr ){
+  var options = attr.type.options || {};
+
+  this.type = attr.type.key;
+  this.name = attr.field;
+
+  this.autoIncrement = new Val( attr.autoIncrement );
+  this.allowNull     = new Val( attr.allowNull );
+  this.primaryKey    = new Val( attr.primaryKey );
+  this.onDelete      = new QuotedVal( attr.onDelete );
+  this.onUpdate      = new QuotedVal( attr.onUpdate );
+
+  this.references    = attr.references;
+
+  this.unsigned      = options.unsigned;
+  this.values        = new ValuesVal( options.values );
+  this.length        = new LengthVal( options.length );
+
+}
+
+Field.opts = [
+  'autoIncrement',
+  'allowNull',
+  'primaryKey',
+  'onDelete',
+  'onUpdate'
+];
+
+exports.Field = Field;
+
+
+
+
+function Model( model ){
+  this.tableName = model.tableName;
+  this.uniqueKeys = model.uniqueKeys;
+  this.fields = Object.keys( model.attributes ).map( function( key ){
+    return new Field( model.attributes[key] );
+  });
+}
+exports.Model = Model;
+
+
+
+
+if( require.main == module ){
+  
+  var models = require('./models');
+  var ect  = require('ect')();
+  var fs = require( 'fs');
+
+  [
+    'model1',
+    'model2',
+    'model3',
+    'model4',
+    'model5',
+
+  ].forEach( function(modelName, i ){
+    var m = new Model( models[modelName] );
+      var out = ect.render('./data/migration-file.js.ect', { model: m, fieldOpts: Field.opts });
+    var timestamp = new Date( Date.now() + i ).toISOString().replace(/[-:.TZ]/g, '');
+    fs.writeFileSync( './migrations/' + timestamp + '-create_table_' + modelName + '_mi-generated.js', out );
+  });
+
+}
+
+
+