By Developers from DevZone

This choice of articles and web publication entries is consultant of the total spectrum of commerce-related content material we’ve released on PayPal’s Developer community over the last yr. you can find tutorials and fast reference items for builders. With the construction of x.commerce now we have extended our assurance to deal with the wishes of eBay and Magento builders and you'll anticipate to determine extra content material interested in aiding either the developer and service provider groups within the coming year.

Our staff has coated a large choice of issues together with construction cellular procuring carts, QR codes, operating with a variety of PayPal APIs, together with the way to combine PayPal with different applied sciences akin to WordPress. 3 major subject matters have emerged within the trade international this present day: cellular, Social, and native. anticipate to determine extra insurance of those within the coming months.

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GetCartItems() function. stringifyCart() function for the call back funtion parameter. string ifyCart() function. stringify function to convert the cartItems array into a string, and then the string will be inserted as the value for the hidden form field with the class cartData in the checkout form. When the user clicks the checkout button, the stringified cart will be submitted to the server for order processing. php, which will display the contents of the posted checkout form. Step 8: Clear the Cart Contents For the final step, we will add a function that will remove all the items from the cartItem table when the clear cart button is clicked.

The first statement runs a query in the database to find an existing cart item using the product id. id], The result of the query is then passed to an anonymous function, which will check if the product has already been added to the cart by using the length attribute of the result rows. length > 0, then the product has already been added to the cart, and an update query is executed to increment the quantity of the product in the cart. id], If the product has not been added to the cart, an insert query is executed.

You may need to substitute correct parameters for your database connection in the URL via the name, password, and table variables. ), Part 1 Figure 3-1. Sample visualizations that come with the Google visualization tools Picking apart the query reveals the parameters expected by the SqlDataSourceServlet as well as the tq parameter that defines a SQL-like query. Complete documentation for the query language is online, but the gist is that it supports the most commonly used SQL syntax, including basic aggregate functions, limits, offsets, and ordering.

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