Merge pull request #171 from c12i/fix-empty-list-of-items-given-to-se…

…lect

Handle error creating linked `ActionHash` or `EntryHash` without previous entry-types existing

src/cli.rs

@@ -559,7 +559,7 @@ Add new entry definitions to your zome with:
                 let file_tree = load_directory_into_memory(&current_dir)?;
                 let template_file_tree = choose_or_get_template_file_tree(&file_tree, &template)?;
 
-                let name: String = match name {
+                let name = match name {
                     Some(n) => {
                         check_case(&n, "entry type name", Case::Snake)?;
                         n

src/scaffold/app.rs

@@ -25,6 +25,7 @@ impl AppFileTree {
     pub fn file_tree(self) -> FileTree {
         self.file_tree
     }
+
     pub fn file_tree_ref<'a>(&'a self) -> &'a FileTree {
         &self.file_tree
     }

src/scaffold/entry_type/fields.rs

@@ -5,7 +5,7 @@ use dialoguer::{theme::ColorfulTheme, Confirm, Select};
 use regex::Regex;
 
 use crate::{
-    error::ScaffoldResult,
+    error::{ScaffoldError, ScaffoldResult},
     file_tree::{dir_content, FileTree},
     scaffold::zome::ZomeFileTree,
     utils::{check_case, input_with_case, input_with_case_and_initial_text},
@@ -261,6 +261,13 @@ pub fn choose_field(
                         ));
                     }
 
+                    if all_options.is_empty() {
+                        return Err(ScaffoldError::NoEntryTypesDefFoundForIntegrityZome(
+                            zome_file_tree.dna_file_tree.dna_manifest.name(),
+                            zome_file_tree.zome_manifest.name.to_string(),
+                        ))
+                    }
+
                     let selection = Select::with_theme(&ColorfulTheme::default())
                         .with_prompt(String::from("Which entry type is this field referring to?"))
                         .default(0)