diff --git a/src/main.rs b/src/main.rs
index 921e7e6..e27869e 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -5,7 +5,7 @@ extern crate rocket;
 #[macro_use]
 extern crate serde;
 
-use serde_json::{json, Value, Number};
+use serde_json::{json, Number, Value};
 
 //use rocket::request::FromSegments;
 //use rocket::http::uri::Segments;
@@ -14,17 +14,17 @@ use rocket_contrib::templates::Template;
 
 mod store;
 
+use crate::store::form::{render_card_fields, render_empty_fields, RenderedCard, RenderedField};
+use crate::store::model::FieldKind;
 use crate::store::Store;
-use rocket::{State, Data};
+use indexmap::map::IndexMap;
 use parking_lot::RwLock;
-use rocket::response::Redirect;
 use rocket::http::Status;
-use rocket::request::{Form, LenientForm, FromForm, FormItems};
+use rocket::request::{Form, FormItems, FromForm, LenientForm};
+use rocket::response::Redirect;
+use rocket::{Data, State};
 use std::env;
-use crate::store::form::{RenderedField, render_empty_fields, RenderedCard, render_card_fields};
-use crate::store::model::FieldKind;
 use std::ops::Deref;
-use indexmap::map::IndexMap;
 
 #[derive(Serialize, Debug)]
 pub struct ListContext<'a> {
@@ -36,8 +36,14 @@ pub struct ListContext<'a> {
 
 const per_page: usize = 20;
 
-fn find_page_with_card(store : &Store, card_id : usize) -> Option<usize> {
-    if let Some((n, _)) = store.data.cards.iter().enumerate().find(|(_n, (id, _card))| **id == card_id) {
+fn find_page_with_card(store: &Store, card_id: usize) -> Option<usize> {
+    if let Some((n, _)) = store
+        .data
+        .cards
+        .iter()
+        .enumerate()
+        .find(|(_n, (id, _card))| **id == card_id)
+    {
         Some(n / per_page)
     } else {
         None
@@ -48,7 +54,6 @@ fn find_page_with_card(store : &Store, card_id : usize) -> Option<usize> {
 fn route_index(store: State<RwLock<Store>>, page: Option<usize>, card: Option<usize>) -> Template {
     let rg = store.read();
 
-
     let mut page = page.unwrap_or_default();
     let n_pages = (rg.data.cards.len() as f64 / per_page as f64).ceil() as usize;
 
@@ -64,7 +69,10 @@ fn route_index(store: State<RwLock<Store>>, page: Option<usize>, card: Option<us
         fields: render_empty_fields(&rg),
         pages: n_pages,
         page,
-        cards: rg.data.cards.iter()
+        cards: rg
+            .data
+            .cards
+            .iter()
             .skip(page * per_page)
             .take(per_page)
             .filter_map(|(id, card)| {
@@ -76,7 +84,8 @@ fn route_index(store: State<RwLock<Store>>, page: Option<usize>, card: Option<us
                 } else {
                     None
                 }
-            }).collect(),
+            })
+            .collect(),
     };
 
     Template::render("index", context)
@@ -84,7 +93,7 @@ fn route_index(store: State<RwLock<Store>>, page: Option<usize>, card: Option<us
 
 #[derive(Default)]
 struct MapFromForm {
-    pub data: IndexMap<String, String>
+    pub data: IndexMap<String, String>,
 }
 
 impl<'a> FromForm<'a> for MapFromForm {
@@ -100,7 +109,7 @@ impl<'a> FromForm<'a> for MapFromForm {
     }
 }
 
-fn collect_card_form(store: &Store, mut form: MapFromForm) -> IndexMap::<String, Value> {
+fn collect_card_form(store: &Store, mut form: MapFromForm) -> IndexMap<String, Value> {
     let mut card = IndexMap::new();
 
     for (k, field) in &store.model.fields {
@@ -110,9 +119,7 @@ fn collect_card_form(store: &Store, mut form: MapFromForm) -> IndexMap::<String,
                 FieldKind::Text | FieldKind::String | FieldKind::FreeEnum { .. } => {
                     Value::String(input)
                 }
-                FieldKind::Bool { .. } => {
-                    serde_json::to_value(true).unwrap()
-                }
+                FieldKind::Bool { .. } => serde_json::to_value(true).unwrap(),
                 FieldKind::Int { min, max, default } => {
                     let mut val: i64 = if input.is_empty() {
                         *default
@@ -151,20 +158,19 @@ fn collect_card_form(store: &Store, mut form: MapFromForm) -> IndexMap::<String,
                     if options.contains(&input) {
                         Value::String(input)
                     } else {
-                        let val = default
-                            .as_ref()
-                            .map(ToOwned::to_owned)
-                            .unwrap_or_else(|| options
+                        let val = default.as_ref().map(ToOwned::to_owned).unwrap_or_else(|| {
+                            options
                                 .first()
                                 .expect("fixed enum must have values")
                                 .to_owned()
-                            );
+                        });
 
                         Value::String(val)
                     }
                 }
                 FieldKind::Tags { options } => {
-                    let tags: Vec<String> = input.split(' ')
+                    let tags: Vec<String> = input
+                        .split(' ')
                         .map(ToOwned::to_owned)
                         .filter_map(|tag| {
                             if options.contains(&tag) {
@@ -172,12 +178,14 @@ fn collect_card_form(store: &Store, mut form: MapFromForm) -> IndexMap::<String,
                             } else {
                                 None
                             }
-                        }).collect();
+                        })
+                        .collect();
 
                     serde_json::to_value(tags).unwrap()
                 }
                 FieldKind::FreeTags { .. } => {
-                    let tags: Vec<String> = input.split(' ')
+                    let tags: Vec<String> = input
+                        .split(' ')
                         .map(str::trim)
                         .filter(|s| !s.is_empty())
                         .map(ToOwned::to_owned)
@@ -216,7 +224,7 @@ fn route_add(store: State<RwLock<Store>>) -> Template {
     let rg = store.read();
 
     let context = AddCardContext {
-        fields: render_empty_fields(&rg)
+        fields: render_empty_fields(&rg),
     };
 
     Template::render("add", context)
@@ -249,7 +257,11 @@ fn route_edit(id: usize, store: State<RwLock<Store>>) -> Option<Template> {
 }
 
 #[post("/edit/<id>", data = "<form>")]
-fn route_edit_save(id: usize, form: Form<MapFromForm>, store: State<RwLock<Store>>) -> Option<Redirect> {
+fn route_edit_save(
+    id: usize,
+    form: Form<MapFromForm>,
+    store: State<RwLock<Store>>,
+) -> Option<Redirect> {
     let mut rg = store.write();
 
     let card = collect_card_form(&rg, form.into_inner());
@@ -278,12 +290,16 @@ fn main() {
         .attach(Template::fairing())
         .manage(RwLock::new(store))
         .mount("/", StaticFiles::from(cwd.join("templates/static/")))
-        .mount("/", routes![
-            route_index,
-            route_add,
-            route_add_save,
-            route_edit,
-            route_edit_save,
-            route_delete,
-        ]).launch();
+        .mount(
+            "/",
+            routes![
+                route_index,
+                route_add,
+                route_add_save,
+                route_edit,
+                route_edit_save,
+                route_delete,
+            ],
+        )
+        .launch();
 }
diff --git a/src/store/form.rs b/src/store/form.rs
index 0f57b46..aee1b53 100644
--- a/src/store/form.rs
+++ b/src/store/form.rs
@@ -1,7 +1,7 @@
 use crate::store::model::FieldKind;
+use crate::store::{model, Indexes, Store};
 use serde_json::Value;
 use std::borrow::Cow;
-use crate::store::{model, Indexes, Store};
 
 use lazy_static::lazy_static;
 
@@ -30,7 +30,7 @@ impl<'a> RenderedField<'a> {
         key: &'i String,
         field: &'i model::Field,
         value: Option<&'i Value>,
-        index: &'i Indexes
+        index: &'i Indexes,
     ) -> RenderedField<'i> {
         let mut rendered = RenderedField::default();
         rendered.key = key.as_str().into();
@@ -134,21 +134,23 @@ impl<'a> RenderedField<'a> {
                 if let Some(Value::String(s)) = value {
                     rendered.value = Cow::Borrowed(&s.as_str());
                 }
-            },
+            }
             FieldKind::Enum { .. } | FieldKind::FreeEnum { .. } => {
                 if let Some(Value::String(s)) = value {
                     rendered.value = Cow::Borrowed(&s.as_str());
                 }
-            },
+            }
             FieldKind::Tags { .. } | FieldKind::FreeTags { .. } => {
                 if let Some(v) = value {
                     rendered.value = serde_json::from_value::<Vec<String>>(v.clone())
-                        .unwrap().join(" ").into();
+                        .unwrap()
+                        .join(" ")
+                        .into();
                     rendered.tags_json = serde_json::to_string(v).unwrap();
                 } else {
                     rendered.tags_json = "[]".into();
                 }
-            },
+            }
             _ => {}
         }
 
@@ -156,24 +158,35 @@ impl<'a> RenderedField<'a> {
     }
 }
 
-#[derive(Serialize,Debug)]
+#[derive(Serialize, Debug)]
 pub struct RenderedCard<'a> {
-    pub fields : Vec<RenderedField<'a>>,
-    pub id : usize,
+    pub fields: Vec<RenderedField<'a>>,
+    pub id: usize,
 }
 
-pub fn render_empty_fields(store : &Store) -> Vec<RenderedField> {
+pub fn render_empty_fields(store: &Store) -> Vec<RenderedField> {
     let indexes = &store.index;
 
-    store.model.fields.iter().map(|(key, field)| {
-        RenderedField::from_template_field(key, field, None, indexes)
-    }).collect()
+    store
+        .model
+        .fields
+        .iter()
+        .map(|(key, field)| RenderedField::from_template_field(key, field, None, indexes))
+        .collect()
 }
 
-pub fn render_card_fields<'a>(store : &'a Store, values : &'a serde_json::Map<String, Value>) -> Vec<RenderedField<'a>> {
+pub fn render_card_fields<'a>(
+    store: &'a Store,
+    values: &'a serde_json::Map<String, Value>,
+) -> Vec<RenderedField<'a>> {
     let indexes = &store.index;
 
-    store.model.fields.iter().map(|(key, field)| {
-        RenderedField::from_template_field(key, field, values.get(key), indexes)
-    }).collect()
+    store
+        .model
+        .fields
+        .iter()
+        .map(|(key, field)| {
+            RenderedField::from_template_field(key, field, values.get(key), indexes)
+        })
+        .collect()
 }
diff --git a/src/store/mod.rs b/src/store/mod.rs
index eff9dec..0ce0345 100644
--- a/src/store/mod.rs
+++ b/src/store/mod.rs
@@ -1,56 +1,56 @@
-use std::fs::{File, OpenOptions};
-use std::io::{Read, Write, Error};
-use std::path::{Path, PathBuf};
-use rocket::request::FromForm;
 use crate::store::model::Model;
-use std::collections::HashMap;
+use indexmap::map::IndexMap;
+use rocket::request::FromForm;
 use serde::Serialize;
 use serde_json::Value;
-use indexmap::map::IndexMap;
+use std::collections::HashMap;
+use std::fs::{File, OpenOptions};
+use std::io::{Error, Read, Write};
+use std::path::{Path, PathBuf};
 
-pub mod model;
 pub mod form;
+pub mod model;
 
 /// Store instance
 #[derive(Debug)]
 pub struct Store {
-    path : PathBuf,
+    path: PathBuf,
     pub model: Model,
     pub data: Cards,
-    pub index : Indexes,
+    pub index: Indexes,
 }
 
 /// Indexes loaded from the indexes file
-#[derive(Serialize,Deserialize,Debug,Default)]
+#[derive(Serialize, Deserialize, Debug, Default)]
 pub struct Indexes {
-    pub free_enums : HashMap<String, Vec<String>>,
-    pub free_tags : HashMap<String, Vec<String>>,
+    pub free_enums: HashMap<String, Vec<String>>,
+    pub free_tags: HashMap<String, Vec<String>>,
 }
 
 /// Struct loaded from the repositroy config file
-#[derive(Deserialize,Debug)]
+#[derive(Deserialize, Debug)]
 struct RepositoryConfig {
-    pub model : Model,
+    pub model: Model,
 }
 
-#[derive(Serialize,Deserialize,Debug)]
+#[derive(Serialize, Deserialize, Debug)]
 pub struct Cards {
     #[serde(default)]
-    pub cards : IndexMap<usize, Value>,
+    pub cards: IndexMap<usize, Value>,
     #[serde(default)]
     pub counter: usize,
 }
 
-const REPO_CONFIG_FILE : &'static str = "repository.yaml";
-const REPO_DATA_FILE : &'static str = "data.json";
-const REPO_INDEX_FILE : &'static str = "index.json";
+const REPO_CONFIG_FILE: &'static str = "repository.yaml";
+const REPO_DATA_FILE: &'static str = "data.json";
+const REPO_INDEX_FILE: &'static str = "index.json";
 
 impl Store {
     pub fn new(path: impl AsRef<Path>) -> Self {
         let file = load_file(path.as_ref().join(REPO_CONFIG_FILE));
 
-        let repository_config : RepositoryConfig = serde_yaml::from_str(&file)
-            .expect("Error parsing repository config file.");
+        let repository_config: RepositoryConfig =
+            serde_yaml::from_str(&file).expect("Error parsing repository config file.");
 
         let items = load_file_or(path.as_ref().join(REPO_DATA_FILE), "{}");
         let indexes = load_file_or(path.as_ref().join(REPO_INDEX_FILE), "{}");
@@ -72,10 +72,11 @@ impl Store {
             .expect("Error opening data file for writing.");
 
         let serialized = serde_json::to_string_pretty(&self.data).expect("Error serialize.");
-        file.write(serialized.as_bytes()).expect("Error write data file");
+        file.write(serialized.as_bytes())
+            .expect("Error write data file");
     }
 
-    pub fn add_card(&mut self, values : IndexMap::<String, Value>) -> usize {
+    pub fn add_card(&mut self, values: IndexMap<String, Value>) -> usize {
         let packed = serde_json::to_value(values).expect("Error serialize");
         if let p @ Value::Object(_) = packed {
             let id = self.data.counter;
@@ -88,7 +89,7 @@ impl Store {
         }
     }
 
-    pub fn update_card(&mut self, id : usize, values : IndexMap::<String, Value>) {
+    pub fn update_card(&mut self, id: usize, values: IndexMap<String, Value>) {
         let packed = serde_json::to_value(values).expect("Error serialize");
 
         if !self.data.cards.contains_key(&id) {
@@ -104,7 +105,7 @@ impl Store {
         self.persist()
     }
 
-    pub fn delete_card(&mut self, id : usize) {
+    pub fn delete_card(&mut self, id: usize) {
         self.data.cards.remove(&id);
 
         self.persist()
@@ -112,17 +113,19 @@ impl Store {
 }
 
 fn load_file(path: impl AsRef<Path>) -> String {
-    let mut file= File::open(&path).expect(&format!("Error opening file {}", path.as_ref().display()));
+    let mut file =
+        File::open(&path).expect(&format!("Error opening file {}", path.as_ref().display()));
 
     let mut buf = String::new();
-    file.read_to_string(&mut buf).expect(&format!("Error reading file {}", path.as_ref().display()));
+    file.read_to_string(&mut buf)
+        .expect(&format!("Error reading file {}", path.as_ref().display()));
     buf
 }
 
-fn load_file_or(file : impl AsRef<Path>, def : impl Into<String>) -> String {
+fn load_file_or(file: impl AsRef<Path>, def: impl Into<String>) -> String {
     let mut file = match File::open(file) {
         Ok(file) => file,
-        Err(_) => return def.into()
+        Err(_) => return def.into(),
     };
 
     let mut buf = String::new();
diff --git a/src/store/model.rs b/src/store/model.rs
index 693541b..2fd14b1 100644
--- a/src/store/model.rs
+++ b/src/store/model.rs
@@ -1,5 +1,5 @@
-use std::collections::HashMap;
 use indexmap::map::IndexMap;
+use std::collections::HashMap;
 
 /// A data card's model.
 /// Cards of one model can be sorted, searched and filtered by their fields.