Zone Plus Shipping (OpenCart Addon)

Supported OpenCart Versions:
v1.2.6, v1.2.7, v1.2.8, v1.2.9, v1.3.0, v1.3.1, v1.3.2, v1.3.3, v1.3.4, v1.4.0, v1.4.4, v1.4.6, v1.4.7, v1.4.8


What does it do:
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This module expands on the original zone shipping module (aka weight-only shipping) to allow calculate zone shipping based not only on the weight, but also the subtotal and item count of the entire order. It also supports incremental and decremental ranges, useful for breaks on shipping costs if the customer purchases a large order.


Main features:
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  * Additional methods for Weight, Subtotal, or ItemCount instead of just weight
  * Additional calculations of incremental and decremental method ranging
  * Hides when rates are out-of-range instead of showing 0.00


Examples:
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incremental (weight) - "increase" the shipping cost as the weight increases
an entry of 5:10,10:20 means
weight of 0-5 = $10 shipping
weight of 6-10 = $20 shipping

decremental (weight) - "decrease" the shipping cost as the weight increases
an entry of 0:10,20:5 means
weight of 0-19.99 = $10 shipping
weight of 20.00+ = $5 shipping

incremental (subtotal) - "increase" the shipping cost as the subtotal increases
an enter of 5:10,10:20 means
subtotal of $0-$5  = $10 shipping
subtotal of $6-$10 = $20 shipping

decremental (itemcount) - "decrease" the shipping cost as the item-count increases
a value of 1:11,3:6 means
1-2 items in the cart  = $11 shipping
3+ items in the cart = $6 shipping

Filtering by Postcode
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A new feature of Zone Plus is the ability to filter by postal codes. It works by utilizing the unused "Description" field in GeoZones. By including a "~" and following it with one or more partial post codes to match, starting from the first character.

For Example. If you lived it California and wanted people from "90100-90299" to pay $5.00 for shipping, but people in zip code "90300-90499" to pay $7.00. You could set it up with the steps below:

1. Create a new GeoZone
Name: CA 90100-90299
Description: ~901,902
Add GeoZone:
Country: United States
Zone: California

2. Create another GeoZone
Name: CA 90300-90499
Description: ~903,904
Add GeoZone:
Country: United States
Zone: California

3. Goto the Zone Plus shipping module

4. For the first new zone enter your price ranges:
  5:2.00, 10:3.00, 100:5.00

5. For the second new zone enter your price ranges:
  5:3.00, 10:4.00, 100:7.00

6. When a customer checks out, the zone shipping zone will check for the "~". If it finds it, it will check if the customer post code partially matches the listed codes. If the customer post code is 90210, it will match the "902" value from the first zone and show it. But since it doesn't match "903 or 904", it will not show that zone, even though the main zone is "California". The additional check hides it and only shows the appropriate selection.

If you don't want to use postcode matching, just remove the "~" from the geozone description field and it will just use the normal country/zone to match.