relation edit

yopa-web/resources/templates/_macros.html.tera

@@ -5,5 +5,5 @@
 	{%- endif -%}
 	{%- if prop.optional %}, OPTIONAL{% endif %}
 	{%- if prop.multiple %}, MULTIPLE{% endif %}
-	<a href="/model/property/delete/{{prop.id}}">Delete property</a>
+	<a href="/model/property/delete/{{prop.id}}" onclick="return confirm('Delete property?')">Delete property</a>
 {% endmacro input %}

yopa-web/resources/templates/index.html.tera

@@ -23,7 +23,7 @@
 	<li>
 		<b title="{{model.id}}">{{model.name}}</b><br>
 
-		<a href="/model/object/delete/{{model.id}}">Delete model</a> &middot;
+		<a href="/model/object/delete/{{model.id}}" onclick="return confirm('Delete model?')">Delete model</a> &middot;
 		<a href="/model/object/update/{{model.id}}">Edit model</a> &middot;
 		<a href="/model/relation/create/{{model.id}}">New relation</a> &middot;
 		<a href="/model/property/create/{{model.id}}">New property</a>
@@ -50,7 +50,8 @@
 				{%- if rel.model.multiple %}, MULTIPLE{% endif %}
 				<br>
 
-				<a href="/model/relation/delete/{{rel.model.id}}">Delete relation</a> &middot;
+				<a href="/model/relation/update/{{rel.model.id}}">Edit relation</a> &middot;
+				<a href="/model/relation/delete/{{rel.model.id}}" onclick="return confirm('Delete relation?')">Delete relation</a> &middot;
 				<a href="/model/property/create/{{rel.model.id}}">New property</a>
 				<br>
 

yopa-web/resources/templates/model_create.html.tera

@@ -12,11 +12,9 @@ Define object
 
 <h1>Define new object model</h1>
 
-{# TODO implement value restoration on error #}
-
 <form action="/model/object/create" method="POST">
 	<label for="name">Name:</label>
-	<input type="text" id="name" name="name" autocomplete="off"><br>
+	<input type="text" id="name" name="name" value="{{old.name}}" autocomplete="off"><br>
 
 	<input type="submit" value="Save">
 </form>

yopa-web/resources/templates/property_create.html.tera

@@ -22,11 +22,11 @@ Define property
 	<input type="text" id="name" name="name" autocomplete="off"><br>
 
 	<label for="optional">Optional:</label>
-	<input type="checkbox" name="optional" id="optional" value="1" autocomplete="off">
+	<input type="checkbox" name="optional" id="optional" value="true" autocomplete="off">
 	<br>
 
 	<label for="multiple">Multiple:</label>
-	<input type="checkbox" name="multiple" id="multiple" value="1" autocomplete="off"><br>
+	<input type="checkbox" name="multiple" id="multiple" value="true" autocomplete="off"><br>
 
 	<label for="data_type">Type:</label>
 	<select name="data_type" id="data_type" autocomplete="off">

yopa-web/resources/templates/relation_create.html.tera

@@ -24,11 +24,11 @@ Define relation
 	<input type="text" id="reciprocal_name" name="reciprocal_name" autocomplete="off"><br>
 
 	<label for="optional">Optional:</label>
-	<input type="checkbox" name="optional" id="optional" value="1" autocomplete="off">
+	<input type="checkbox" name="optional" id="optional" value="true" autocomplete="off">
 	<br>
 
 	<label for="multiple">Multiple:</label>
-	<input type="checkbox" name="multiple" id="multiple" value="1" autocomplete="off"><br>
+	<input type="checkbox" name="multiple" id="multiple" value="true" autocomplete="off"><br>
 
 	<label for="related">Related object:</label>
 	<select name="related" id="related" autocomplete="off">

yopa-web/resources/templates/relation_update.html.tera

@@ -0,0 +1,35 @@
+{% extends "_layout" %}
+
+{% block title -%}
+Edit relation
+{%- endblock %}
+
+{% block nav -%}
+<a href="/">Home</a>
+{%- endblock %}
+
+{% block content -%}
+
+<h1>Edit relation model "{{model.name}}"</h1>
+
+<form action="/model/relation/update/{{model.id}}" method="POST">
+	<label for="name">Name:</label>
+	<input type="text" id="name" name="name" value="{{model.name}}" autocomplete="off"><br>
+
+	<label for="reciprocal_name">Reciprocal name:</label>
+	<input type="text" id="reciprocal_name" name="reciprocal_name" value="{{model.reciprocal_name}}" autocomplete="off"><br>
+
+	<label for="optional">Optional:</label>
+	<input type="checkbox" name="optional" id="optional" value="true" {{opt(checked=model.optional)}} autocomplete="off">
+	<br>
+
+	<label for="multiple">Multiple:</label>
+	<input type="checkbox" name="multiple" id="multiple" value="true" {{opt(checked=model.multiple)}} autocomplete="off"><br>
+
+	<p>The related object cannot be changed. Create a new relation if needed.</p>
+
+	<input type="submit" value="Save">
+</form>
+
+
+{%- endblock %}

yopa-web/src/main.rs

@@ -56,6 +56,21 @@ pub(crate) static TERA: Lazy<Tera> = Lazy::new(|| {
         Err(tera::Error::msg("Expected nonenmpty object"))
     });
 
+    tera.register_function("opt", |args: &HashMap<String, Value>| -> tera::Result<Value> {
+        if args.len() != 1 {
+            return Err("Expected 1 argument".into());
+        }
+        match args.iter().nth(0) {
+            Some((name, &Value::Bool(true))) => {
+                Ok(Value::String(name.clone()))
+            },
+            Some((_, &Value::Bool(false))) => {
+                Ok(Value::Null)
+            },
+            _ => Err("Expected bool argument".into()),
+        }
+    });
+
     // TODO need to inject HttpRequest::url_for() into tera context, but it then can't be accessed by the functions.
     // tera.register_function("url_for", |args: HashMap<String, Value>| -> tera::Result<Value> {
     //     match args.get("name") {
@@ -110,6 +125,8 @@ async fn main() -> std::io::Result<()> {
             //
             .service(routes::relation_model::create_form)
             .service(routes::relation_model::create)
+            .service(routes::relation_model::update_form)
+            .service(routes::relation_model::update)
             .service(routes::relation_model::delete)
             //
             .service(routes::property_model::create_form)

yopa-web/src/routes/object_model.rs

@@ -25,10 +25,17 @@ pub(crate) async fn create_form(session: Session) -> actix_web::Result<impl Resp
     let mut context = tera::Context::new();
     session.render_flash(&mut context);
 
+    // Re-fill old values
+    if let Ok(Some(form)) = session.take::<ObjectModelForm>("old") {
+        context.insert("old", &form);
+    } else {
+        context.insert("old", &ObjectModelForm::default());
+    }
+
     TERA.build_response("model_create", &context)
 }
 
-#[derive(Debug, Clone, Serialize, Deserialize)]
+#[derive(Default, Debug, Clone, Serialize, Deserialize)]
 pub(crate) struct ObjectModelForm {
     pub name: String,
 }
@@ -53,6 +60,7 @@ pub(crate) async fn create(
         Err(e) => {
             warn!("Error creating model: {:?}", e);
             session.flash_error(e.to_string());
+            session.set("old", form);
             redirect("/model/object/create")
         }
     }

yopa-web/src/routes/property_model.rs

@@ -50,8 +50,10 @@ pub(crate) async fn create_form(
 pub(crate) struct PropertyModelCreate {
     pub object: ID,
     pub name: String,
-    pub optional: Option<i32>,
-    pub multiple: Option<i32>,
+    #[serde(default)]
+    pub optional: bool,
+    #[serde(default)]
+    pub multiple: bool,
     pub data_type: DataType,
     /// Default value to be parsed to the data type
     /// May be unused if empty and optional
@@ -67,8 +69,8 @@ pub(crate) async fn create(
     let mut wg = store.write().await;
     let form = form.into_inner();
 
-    let optional = form.optional.unwrap_or_default() != 0;
-    let multiple = form.multiple.unwrap_or_default() != 0;
+    let optional = form.optional;
+    let multiple = form.multiple;
 
     match wg.define_property(PropertyModel {
         id: Default::default(),

yopa-web/src/routes/relation_model.rs

@@ -44,18 +44,20 @@ pub(crate) async fn create_form(
 }
 
 #[derive(Deserialize)]
-pub(crate) struct RelationModelCreate {
+pub(crate) struct RelationModelCreateForm {
     pub object: ID,
     pub name: String,
     pub reciprocal_name: String,
-    pub optional: Option<i32>,
-    pub multiple: Option<i32>,
+    #[serde(default)]
+    pub optional: bool,
+    #[serde(default)]
+    pub multiple: bool,
     pub related: ID,
 }
 
 #[post("/model/relation/create")]
 pub(crate) async fn create(
-    form: web::Form<RelationModelCreate>,
+    form: web::Form<RelationModelCreateForm>,
     store: crate::YopaStoreWrapper,
     session: Session,
 ) -> actix_web::Result<impl Responder> {
@@ -66,8 +68,8 @@ pub(crate) async fn create(
         object: form.object,
         name: form.name.clone(),
         reciprocal_name: form.reciprocal_name.clone(),
-        optional: form.optional.unwrap_or_default() != 0,
-        multiple: form.multiple.unwrap_or_default() != 0,
+        optional: form.optional,
+        multiple: form.multiple,
         related: form.related,
     }) {
         Ok(_id) => {
@@ -109,3 +111,74 @@ pub(crate) async fn delete(
         }
     }
 }
+
+#[derive(Serialize,Deserialize)]
+pub(crate) struct RelationModelEditForm {
+    pub name: String,
+    pub reciprocal_name: String,
+    #[serde(default)]
+    pub optional: bool,
+    #[serde(default)]
+    pub multiple: bool,
+}
+
+#[get("/model/relation/update/{model_id}")]
+pub(crate) async fn update_form(
+    model_id: web::Path<ID>,
+    store: crate::YopaStoreWrapper,
+    session: Session,
+) -> actix_web::Result<impl Responder> {
+    let mut context = tera::Context::new();
+    session.render_flash(&mut context);
+    let rg = store.read().await;
+
+    let model = rg.get_relation_model(*model_id)
+        .ok_or_else(|| actix_web::error::ErrorNotFound("No such model"))?;
+
+    // Re-fill old values
+    if let Ok(Some(form)) = session.take::<RelationModelEditForm>("old") {
+        let mut model = model.clone();
+        model.name = form.name;
+        model.optional = form.optional; // TODO try if regular bools cant be used
+        model.multiple = form.multiple;
+        context.insert("model", &model);
+    } else {
+        context.insert("model", model);
+    }
+
+    TERA.build_response("relation_update", &context)
+}
+
+#[post("/model/relation/update/{model_id}")]
+pub(crate) async fn update(
+    model_id: web::Path<ID>,
+    form: web::Form<RelationModelEditForm>,
+    store: crate::YopaStoreWrapper,
+    session: Session,
+) -> actix_web::Result<impl Responder> {
+    let mut wg = store.write().await;
+    let form = form.into_inner();
+
+    let id = model_id.into_inner();
+    match wg.update_relation(RelationModel {
+        id,
+        object: Default::default(), // dummy
+        name: form.name.clone(),
+        reciprocal_name: form.reciprocal_name.to_string(),
+        optional: form.optional,
+        multiple: form.multiple,
+        related: Default::default() // dummy
+    }) {
+        Ok(_id) => {
+            debug!("Relation updated, redirecting to root");
+            session.flash_success(format!("Relation model \"{}\" updated.", form.name));
+            redirect("/")
+        }
+        Err(e) => {
+            warn!("Error updating model: {:?}", e);
+            session.flash_error(e.to_string());
+            session.set("old", form);
+            redirect(format!("/model/relation/update/{}", id))
+        }
+    }
+}

yopa/src/lib.rs

@@ -389,4 +389,33 @@ impl Storage {
         self.obj_models.insert(model.id, model);
         Ok(())
     }
+
+    pub fn update_relation(&mut self, mut rel : RelationModel) -> Result<(), StorageError> {
+        // Object and Related can't be changed, so we re-fill them from the existing model
+        if let Some(existing) = self.rel_models.get(&rel.id) {
+            rel.object = existing.object;
+            rel.related = existing.related;
+        } else {
+            return Err(StorageError::NotExist(format!("Relation model ID {} does not exist.", rel.id).into()));
+        }
+
+        // Difficult checks ...
+
+        // yes this is stupid and inefficient and slow and
+        if let Some((_, colliding)) = self.rel_models.iter().find(|(_, other)| {
+            (other.name == rel.name && other.object == rel.object && rel.id != other.id) // Exact match
+                || (other.name == rel.reciprocal_name && other.object == rel.related && rel.id != other.id) // Our reciprocal name collides with related's own relation name
+                || (other.reciprocal_name == rel.name && other.related == rel.object && rel.id != other.id) // Our name name collides with a reciprocal name on the other relation
+                || (other.reciprocal_name == rel.reciprocal_name && other.related == rel.related && rel.id != other.id) // Reciprocal names collide for the same destination
+        }) {
+            return Err(StorageError::ConstraintViolation(
+                format!("name collision (\"{}\" / \"{}\") with existing relation (\"{}\" / \"{}\")",
+                        rel.name, rel.reciprocal_name,
+                        colliding.name, colliding.reciprocal_name
+                ).into()));
+        }
+
+        self.rel_models.insert(rel.id, rel);
+        Ok(())
+    }
 }