Fails to create invoice. No invoice_items included?

[rept]

Hi,

First of all thanks for this gem, I've been able to quickly get customers out of Zoho, now I'm trying to send invoices but I'm running into some trouble.

This is what ZohoInvoice self looks like, you can see it includes invoice_items:

However when I check this: XMLString => self.to_xml

I don't see any InvoiceItems

"<?xml version="1.0"?>
<Invoice>
  <InvoiceNumber>18</InvoiceNumber>
  <CustomerID>562674000000039020</CustomerID>
  <InvoiceDate>2014-10-17</InvoiceDate>
  <InvoiceItems><InvoiceItem/>
<InvoiceItem/>
<InvoiceItem/>
<InvoiceItem/>
<InvoiceItem/>
<InvoiceItem/>
</InvoiceItems>
</Invoice>
"

This is the result.body I'm getting:

'Code': 4091
'Message': Select an item or give a description to create the invoice.
'Status': 0

[rept]

I tried out with the v3 that is currently in open pull request (from @alexherstinsky : #10 ) but there I'm getting this error:

undefined local variable or method `refl_h' for #<ZohoInvoice::Invoice:0x000001042fc7e0>

on

  def to_hash(*args)
    build_attributes(ZohoInvoice::Invoice::CREATE_UPDATE_ATTRIBUTES)["#{self.class.to_s.split('::').last}"]
  end

[rept]

Problem is solved. For future reference for others:

This is how you can make line_items:

zoho_invoice = ZohoInvoice::Invoice.new(@integration_client, :customer_id => invoice.integration_external_client_id)
zoho_invoice.invoice_number = invoice.number
zoho_invoice.invoice_date = invoice.date
zoho_invoice.due_date = invoice.due_date if !invoice.due_date.nil?
invoice.client_invoice_details.select('description,quantity,price_cents/100 as price').each do |id|
  zoho_invoice.invoice_items.push(ZohoInvoice::InvoiceItem.new(@integration_client, :item_name => 'service', :item_description => id.description, :price => id.price, :quantity => id.quantity))
end
result = zoho_invoice.save

It's important to always include the client when creating an InvoiceItem, otherwise it will fail on saving to Zoho since it can't find the attributes.