Product Importer, Exporter AND Sincronization by CSV File for OpenCart 1.5.X | Version 1.2014.08.13
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https://bitbucket.org/joelcorreia/products-importer
About
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The product importer is an back-office tool that allows the importation/update of a list of products, that are in a csv list file format like this:

Checkout video at: http://youtu.be/Zgv0_ryteug

name,model,price,quantity,image_url,product_description,sku,upc,weight,category_name,attribute1,attribute2,
usb pen,usb pen,7,400,http://www.joelcorreia.pt/product_importer/pen.jpg,<b>usb pen 5 gb</b> <br>,0002,0002,0.2,PC,text attribute 1,text attribute 2,


Examples of some situation(USE CASES):
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==CASE 1
==CSV File:
name,model,price,quantity,image_url,product_description,sku,upc,weight,category_name,attribute1,attribute2,
usb pen,,8,,,,,,,,,,
==Situation:
Already exists a product in opencart with the name: usb pen
==Behavior:
Updates the price to 8

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==CASE 2
==CSV File:
name,model,price,quantity,image_url,product_description,sku,upc,weight,category_name,attribute1,attribute2,
usb pen,usb pen,7,400,http://www.joelcorreia.pt/product_importer/pen.jpg,<b>usb pen 5 gb</b> <br>,0002,0002,0.2,PC,text attribute 1,,
==Situation:
A product with the model "usb pen" does not exists in open cart
==Behavior:
creates a new product, with the name:"usb pen" and price 7 and with the rest of the fields


This module download the image of each product from an url and creates an new product, the other fields that are not present in the csv file are filled by referring to an existing product.
By default if the name of the product already exists in opencart, it will update the product fields. These feature can be unselect.

The columns in the csv file must be in the correct order.