By the end of this chapter you will be able to:

You will also learn how to use an internal variable, _pipeName.

In this exercise you will produce a single list of updates to customers' Cable TV packages. Customers can update their packages both through a customer care system and in shops. You will bring all these updates together into a single list.

Read in

data sets from

files

For this exercise you need two files from the zip file you downloaded in  2 Using Excel Templates, step 5. The files contain updates from the two sources: the customer care

system and the shop.

• <path>\train\inputData\ChannelPackages\CustomerCareUpdates\CustomerCareUpdates.txt
• <path>\train\inputData\ChannelPackages\ShopUpdates\ShopUpdates.txt

1. Create a new model with the 

1. Name, Channel Package Check.
2. Add a file collector to your model and load the data as follows:
   1. From the model toolbar, drag a 

      Insert excerpt
      _file_collector _file_collector nopanel true

       into the model.
   2. PhixFlow displays

1. 1. the settings tab for the new file collector. Set the Name to Customer Care Updates.
   2. In the model, hover your mouse pointer over the

1. 1. Customer Care Updates file collector to display the context toolbar

1. 1. and click 

      Insert excerpt
      _upload_file _upload_file nopanel true

      .
   2.  Navigate to the directory <path>\train\inputData\ChannelPackages\CustomerCareUpdates.
   3. Select the file CustomerCareUpdates.txt

1. 1. , click Open, then click

      Insert excerpt
      _upload_file _upload_file nopanel true

      .
   2. PhixFlow adds a new

1. 1. table to the model, called CustomerCareUpdates.
   2. In the model, hover over the new CustomerCareUpdates

1. 1. table and click  

      Insert excerpt
      _run_analysis _run_analysis nopanel true

   2. Check the data is loaded. There should be 8 lines of data, with columns for Customer Ref, Sales Date and Package.
   3. Now the data is loaded into the table, set the table to 

      Insert excerpt
      _static _static nopanel true

      .
2. Add another file collector to your model and repeat the process described

1. above, this time:
   1. Set the file collector Name to Shop Updates.
   2. Upload <path>\train\inputData\ChannelPackages\ShopUpdates\ShopUpdates.txt.
   3. PhixFlow loads 7 rows of data to this

1. 1. table.
   2. Remember to set the table to 

      Insert excerpt
      _static _static nopanel true

      .

Screenshot of the Channel Package Check model so far:

Image Added

Combine

the data sets

1. Create a new

1. table in your model and populate its attributes

1. :
   1. Hover over the CustomerCareUpdates table and click 

1. 1. Insert excerpt
      _table_new _table_new nopanel true

      .
   2. In the

1. 1. settings, set the Name to  Combined Updates.
   2. In the model, show the

1. 1. table attributes for CustomerCareUpdates .
   2. Select all the attributes and drag them into the

1. 1. properties for the Combined Updates

1. 1. table. Drop them into the Attributes section.
   2. Click 

      Insert excerpt
      _finish _finish nopanel true

      .

1. To save your model, in the model toolbar click 

   Insert excerpt
   _save_saveModel _save_saveModel nopanel true

   . 
2. Connect the ShopUpdates

1.  table to the Combined Updates

1. table:
   1. Hover over ShopUpdates and click 

1. 1. Insert excerpt
      _pipe _pipe nopanel true

      .

   2. Click Combined Updates to link the pipe to the

1. 1. table.

      Info
      When

1. 1. you connect tables, PhixFlow automatically adds a reference to the input pipe name. This appears in the attribute expression. To merge

1. 1. this data

1. 1. successfully,  you must update the attribute expressions to remove the in. prefix; see step 4 below.

      
      

2. Fix all the attribute expressions.
   1. Double-click on Combined Updates to open its

1. 1. settings tab. For each attribute:
   2. In the Attributes section, double-click on an attribute to open its

1. 1. settings.
   2. In the

1. 1. Basic Settings section, edit the Expression to remove in. and

1. 1. click 

      Insert excerpt
      _finish _finish nopanel true

      
      Image Added
2. In the Combined Updates

1. table settings tab, click 

   Insert excerpt
   _finish _finish nopanel true

    to save and close.
2. In the model, hover your mouse pointer over Combined Updates and click 

   Insert excerpt
   _run_analysis _run_analysis nopanel true

   .
3. When the table has run, check that the table has:
   • the columns Customer Ref, Sales Date and Package
   • 15 rows
   • all cells have data.
     The default view:
     Image Added

Record the source for each update

You will now update your

settings to record the source for each update, in the set of combined updates. To do this:

1. To update the name of the pipe from the

1. CustomerCareUpdates table to the Combined Updates table:
   1. In the model, click on the pipe to open

1. 1. its settings tab.

1. 1. Set Name to CC.

1. 2. Click 

      Insert excerpt
      _finish _finish nopanel true

       to save and close the pipe settings.
2. Repeat the above steps to name the pipe from the ShopUpdates table to the Combined Updates table, shop.
3. Double-click the

1. table Combined Updates to open

1. its settings tab.
2. In the Attributes section,

1. click

   Insert excerpt
   _new _new nopanel true

    add a new attribute and set:

1. 1. Name: Source.

   2. Expression

1. 1. :

      Code Block
      if (_pipeName == "CC", "Customer Care" , "Shop" )

      
      

   2. Click 

      Insert excerpt
      _finish _finish nopanel true

       to save and close the attribute settings.
2. To make Source the first attribute in the

1. table, drag it to the top of the attributes list.

2. Click 

   Insert excerpt
   _finish _finish nopanel true

    to save and close the table settings.
3. Run analysis on Combined Updates.
4. In the model window, click 

   Insert excerpt
   _save_saveModel _save_saveModel nopanel true

   .
5. Check the output data set and make sure that the source has been recorded on each record correctly.
   Image Added

Snapshot of the Chanel Package Check model so far:

Image Added