├── LICENSE ├── README.md └── migrate.py /LICENSE: -------------------------------------------------------------------------------- 1 | GNU GENERAL PUBLIC LICENSE 2 | Version 2, June 1991 3 | 4 | Copyright (C) 1989, 1991 Free Software Foundation, Inc., 5 | 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA 6 | Everyone is permitted to copy and distribute verbatim copies 7 | of this license document, but changing it is not allowed. 8 | 9 | Preamble 10 | 11 | The licenses for most software are designed to take away your 12 | freedom to share and change it. By contrast, the GNU General Public 13 | License is intended to guarantee your freedom to share and change free 14 | software--to make sure the software is free for all its users. This 15 | General Public License applies to most of the Free Software 16 | Foundation's software and to any other program whose authors commit to 17 | using it. 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If this is what you want to do, use the GNU Lesser General 339 | Public License instead of this License. 340 | 341 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | Migrate-MySQL-to-MongoDB 2 | ======================== 3 | 4 | A Simple python Script to migrate data from MySQL to MongoDB with Mutliprocessing 5 | 6 | Author: Anirudh Parui (alwaysanirudh@gmail.com) 7 | Date: Dec 11, 2014 8 | Version: 1.0.1 9 | Purpose: Migrate Products from MySQL to Mongo 10 | Dependecies : python-pip , pymongo , mysqldb 11 | apt-get install python-pip ; pip install pymongo; 12 | apt-get install python-MySQLdb 13 | 14 | NOTE: This script was developed for specific requirement. Please Modify it as per your requirement and use. 15 | -------------------------------------------------------------------------------- /migrate.py: -------------------------------------------------------------------------------- 1 | #!/usr/bin/python 2 | # migrate.py 3 | # Author: Anirudh Parui (anirudh@ambab.com) 4 | # Date: Dec 11, 2014 5 | # Version: 1.0.1 6 | # Purpose: Migrate Products from MySQL to Mongo 7 | # Dependecies : python-pip , pymongo , mysqldb 8 | # apt-get install python-pip ; pip install pymongo; 9 | # apt-get install python-MySQLdb 10 | 11 | 12 | import MySQLdb as mydb # Import MySQL Libraimport sys, tracebackry 13 | import pymongo as mondb # Import MongoDB Library 14 | import multiprocessing as mp # Import Multiprocessing 15 | 16 | 17 | # MySQL Config 18 | myConfig = {'host': '', 19 | 'username': '', 20 | 'password': '', 21 | 'db': ''} 22 | 23 | 24 | moncon = mondb.MongoClient('mongodb://:@:27017/') 25 | mondb = moncon.db.collection 26 | 27 | # Number of threads is 3 times the cpu on the machine i.e. 3 threads per cpu 28 | threads = 3*mp.cpu_count() 29 | 30 | 31 | # Insert Products to MongoDB 32 | def index(product): 33 | productExist = mondb.find_one({'_id': product[0]}) 34 | 35 | if productExist is None: 36 | mycon = mydb.connect(myConfig['host'], myConfig['username'], 37 | myConfig['password'], myConfig['db']) 38 | iProduct = {'_id': int(product[0]), 39 | 'sku': product[3], 40 | 'name': product[4], 41 | 'long_desc': product[2], 42 | 'short_desc': product[1], 43 | 'brand': {'id': int(product[5]), 'name': product[6]}, 44 | 'style': {'id': int(product[10]), 'name': product[11]}, 45 | 'category': {'id': int(product[7]), 'name': product[8], 46 | 'parent': int(product[9])}, 47 | 'in_stock': 1, 48 | } 49 | 50 | iProduct['images'] = productImages(product[0], mycon) 51 | 52 | attributes = productAttributes(product[0], mycon) 53 | 54 | for attribute in attributes.iterkeys(): 55 | iProduct[attribute] = attributes[attribute] 56 | 57 | prices = productPrices(product[0], mycon) 58 | iProduct['currency'] = int(prices['currency']) 59 | iProduct['prices'] = prices['prices'] 60 | 61 | iProduct['sale_price'] = prices['prices']['sale'] 62 | 63 | mondb.insert(iProduct) 64 | 65 | print 'Product: ' + str(product[0])+' indexed' 66 | 67 | else: 68 | exit() 69 | print 'Product: ' + str(product[0])+' already exists' 70 | 71 | return True 72 | 73 | 74 | # Fetch Products from MySQL 75 | def fetchproducts(): 76 | mycon = mydb.connect(myConfig['host'], myConfig['username'], 77 | myConfig['password'], myConfig['db']) 78 | with mycon: 79 | 80 | cur = mycon.cursor() 81 | cur.execute("SELECT p.id, p.short_desc, p.long_desc, p.sku, p.name, \ 82 | p.brand_id, b.brand_name, p.category_id, \ 83 | c.category_name, c.parent_category, \ 84 | b.style_id, b.style_name \ 85 | FROM products as p \ 86 | LEFT JOIN brands as b ON p.brand_id = b.id \ 87 | LEFT JOIN product_categories as c \ 88 | ON c.id = p.category_id ") 89 | products = cur.fetchall() 90 | return products 91 | 92 | 93 | # Fetch Product Images 94 | def productImages(id, mycon): 95 | with mycon: 96 | 97 | cur = mycon.cursor() 98 | cur.execute("SELECT i.path, i.type, i.label FROM product_images as i \ 99 | WHERE i.product_id =" + str(id)) 100 | images = cur.fetchall() 101 | r = [] 102 | for image in images: 103 | 104 | r.append({'path': image[0], 'type': image[1], 'label': image[2]}) 105 | return r 106 | 107 | 108 | # Fetch Product Attributes 109 | def productAttributes(id, mycon): 110 | with mycon: 111 | 112 | cur = mycon.cursor() 113 | cur.execute("SELECT a.attribute_key, av.value, av.id \ 114 | FROM product_attribute_values as av \ 115 | LEFT JOIN product_attributes as a \ 116 | ON a.id = av.attribute_id \ 117 | WHERE av.product_id =" + str(id)) 118 | attributes = cur.fetchall() 119 | r = {} 120 | for attribute in attributes: 121 | if str(attribute[0]) == 'size': 122 | if 'size' not in r.keys(): 123 | r['size'] = [] 124 | temp = rectify(id, attribute[2], attribute[1], mycon) 125 | 126 | if temp is not None: 127 | 128 | if isinstance(temp, list): 129 | for te in temp: 130 | if te not in r['size']: 131 | r['size'].append(te) 132 | elif isinstance(temp, str): 133 | if temp not in r['size']: 134 | r['size'].append(temp) 135 | 136 | else: 137 | r[attribute[0]] = attribute[1] 138 | return r 139 | 140 | 141 | # Fetch Product Prices 142 | def productPrices(id, mycon): 143 | with mycon: 144 | 145 | cur = mycon.cursor() 146 | cur.execute("SELECT p.type, p.value, p.currency_id \ 147 | FROM product_prices as p \ 148 | WHERE p.product_id =" + str(id)) 149 | prices = cur.fetchall() 150 | r = {'currency': 0, 'prices': {}} 151 | i = 0 152 | for price in prices: 153 | r['currency'] = price[2] 154 | r['prices'][price[0]] = str(price[1]) 155 | i += 1 156 | return r 157 | 158 | 159 | # Rectify/Purify Product Attribute 'Size' 160 | def rectify(pid, av_id, value, mycon): 161 | r = value.split(',') 162 | if len(r) > 1: 163 | with mycon: 164 | cur = mycon.cursor() 165 | cur.execute('DELETE FROM product_attribute_values \ 166 | WHERE id = ' + str(av_id)) 167 | temp = [] 168 | for size in r: 169 | if '\xa3' not in size: 170 | temp.append(size) 171 | sql = 'INSERT INTO product_attribute_values \ 172 | (product_id, attribute_id, value) \ 173 | values (' + str(pid) + ", 9, '" + str(size) + "' )" 174 | cur.execute(sql) 175 | 176 | return temp 177 | 178 | elif '\xa3' in value: 179 | with mycon: 180 | cur = mycon.cursor() 181 | cur.execute('DELETE FROM product_attribute_values WHERE id = ' 182 | + str(av_id)) 183 | return None 184 | else: 185 | return value 186 | 187 | 188 | # Main Function 189 | def main(): 190 | products = fetchproducts() 191 | 192 | pool = mp.Pool(threads) 193 | for product in products: 194 | pool.apply_async(index, args=(product,)) 195 | pool.close() 196 | pool.join() 197 | 198 | # If you do not want MultiThreading uncomment the following line and comment 199 | # the call of main function 200 | # products = fetchproducts() 201 | 202 | # for product in products: 203 | # index(product) 204 | 205 | main() 206 | --------------------------------------------------------------------------------