feat: migrate deprecated diagram to new yuml API

CHANGELOG.md

@@ -10,6 +10,7 @@ The format is based on [Keep a Changelog](http://keepachangelog.com/).
 - Added `defaultProtocol` configuration option as fallback if no config is provided.
 ### Changed
 - set `odata` as the service protocol if no protocol is set to match the default behavior of `@sap/cds`. Provide `cds.env.openapi.defaultProtocol = "rest"` to restore old behavior.
+- ER diagrams are now rendered using the yuml.me v1 API (`app.yuml.me`), avoiding the 'please migrate' image. The diagram and legend are displayed as clickable SVG images.
 ### Deprecated
 ### Removed
 ### Fixed

lib/compile/diagram.js

@@ -59,25 +59,28 @@ class Diagram {
         Object.keys(entityContainer).filter(name => isIdentifier(name)).reverse().forEach(name => {
             const resource = entityContainer[name];
             if (resource.$Type) {
-                diagram += `${this.#comma}[${name}%20${this.#color.resource}]` // additional space in case entity set and type have same name
+                diagram += `${this.#comma}[${name}\u200C${this.#color.resource}]` // U+200C (ZWNJ) disambiguates entity set node from same-named entity type node
                     + `++-${cardinality(resource)}>[${nameParts(resource.$Type).name}]`;
             } else if (resource.$Action) {
-                    diagram += `${this.#comma}[${name}${this.#color.resource}]`;
-                    const overload = this.#meta.modelElement(resource.$Action).find(pOverload => !pOverload.$IsBound);
-                    diagram += this.#overloadDiagram(name, overload);
-                } else if (resource.$Function) {
-                    diagram += `${this.#comma}[${name}${this.#color.resource}]`;
-                    const overloads = this.#meta.modelElement(resource.$Function);
-                    if (overloads) {
-                        const unbound = overloads.filter(overload => !overload.$IsBound);
-                        // TODO: loop over all overloads, add new source box after first arrow
-                        diagram += this.#overloadDiagram(name, unbound[0]);
-                    }
+                diagram += `${this.#comma}[${name}${this.#color.resource}]`;
+                const overload = this.#meta.modelElement(resource.$Action).find(pOverload => !pOverload.$IsBound);
+                diagram += this.#overloadDiagram(name, overload);
+            } else if (resource.$Function) {
+                diagram += `${this.#comma}[${name}${this.#color.resource}]`;
+                const overloads = this.#meta.modelElement(resource.$Function);
+                if (overloads) {
+                    const unbound = overloads.filter(overload => !overload.$IsBound);
+                    // TODO: loop over all overloads, add new source box after first arrow
+                    diagram += this.#overloadDiagram(name, unbound[0]);
                 }
+            }
         });
 
         if (diagram != '') {
-            diagram = `\n\n## Entity Data Model\n![ER Diagram](https://yuml.me/diagram/class/${diagram})\n\n### Legend\n![Legend](https://yuml.me/diagram/plain;dir:TB;scale:60/class/[External.Type${this.#color.external}],[ComplexType${this.#color.complexType}],[EntityType${this.#color.entityType}],[EntitySet/Singleton/Operation${this.#color.resource}])`;
+            const legendDsl = `@direction LR\n[External.Type${this.#color.external}]-[ComplexType${this.#color.complexType}]-[EntityType${this.#color.entityType}]-[EntitySet/Singleton/Operation${this.#color.resource}]`;
+            const erUrl = `https://app.yuml.me/diagram/v1/class/plain/${encodeURIComponent(diagram)}.svg`;
+            const legendUrl = `https://app.yuml.me/diagram/v1/class/plain/${encodeURIComponent(legendDsl)}.svg`;
+            diagram = `\n\n### Entity Data Model\n[![ER Diagram](${erUrl})](${erUrl})\n\n#### Legend\n<a href="${legendUrl}"><img src="${legendUrl}" width="450"></a>`;
         }
 
         return diagram;

test/lib/compile/csdl2openapi.test.js

@@ -2404,11 +2404,11 @@ see [Expand](http://docs.oasis-open.org/odata/odata/v4.01/odata-v4.01-part1-prot
       [
         "Use the Core.LongDescription or Core.Description annotation on your CDS service to provide a meaningful description.",
         "",
-        "## Entity Data Model",
-        "![ER Diagram](https://yuml.me/diagram/class/[root{bg:lightslategray}],[root]->[other],[other{bg:lightslategray}],[act{bg:lawngreen}]->[root],[act{bg:lawngreen}]in->[root],[others%20{bg:lawngreen}]++-*>[other],[roots%20{bg:lawngreen}]++-*>[root])",
+        "### Entity Data Model",
+        "[![ER Diagram](https://app.yuml.me/diagram/v1/class/plain/%5Broot%7Bbg%3Alightslategray%7D%5D%2C%5Broot%5D-%3E%5Bother%5D%2C%5Bother%7Bbg%3Alightslategray%7D%5D%2C%5Bact%7Bbg%3Alawngreen%7D%5D-%3E%5Broot%5D%2C%5Bact%7Bbg%3Alawngreen%7D%5Din-%3E%5Broot%5D%2C%5Bothers%E2%80%8C%7Bbg%3Alawngreen%7D%5D%2B%2B-*%3E%5Bother%5D%2C%5Broots%E2%80%8C%7Bbg%3Alawngreen%7D%5D%2B%2B-*%3E%5Broot%5D.svg)](https://app.yuml.me/diagram/v1/class/plain/%5Broot%7Bbg%3Alightslategray%7D%5D%2C%5Broot%5D-%3E%5Bother%5D%2C%5Bother%7Bbg%3Alightslategray%7D%5D%2C%5Bact%7Bbg%3Alawngreen%7D%5D-%3E%5Broot%5D%2C%5Bact%7Bbg%3Alawngreen%7D%5Din-%3E%5Broot%5D%2C%5Bothers%E2%80%8C%7Bbg%3Alawngreen%7D%5D%2B%2B-*%3E%5Bother%5D%2C%5Broots%E2%80%8C%7Bbg%3Alawngreen%7D%5D%2B%2B-*%3E%5Broot%5D.svg)",
         "",
-        "### Legend",
-        "![Legend](https://yuml.me/diagram/plain;dir:TB;scale:60/class/[External.Type{bg:whitesmoke}],[ComplexType],[EntityType{bg:lightslategray}],[EntitySet/Singleton/Operation{bg:lawngreen}])",
+        "#### Legend",
+        "<a href=\"https://app.yuml.me/diagram/v1/class/plain/%40direction%20LR%0A%5BExternal.Type%7Bbg%3Awhitesmoke%7D%5D-%5BComplexType%5D-%5BEntityType%7Bbg%3Alightslategray%7D%5D-%5BEntitySet%2FSingleton%2FOperation%7Bbg%3Alawngreen%7D%5D.svg\"><img src=\"https://app.yuml.me/diagram/v1/class/plain/%40direction%20LR%0A%5BExternal.Type%7Bbg%3Awhitesmoke%7D%5D-%5BComplexType%5D-%5BEntityType%7Bbg%3Alightslategray%7D%5D-%5BEntitySet%2FSingleton%2FOperation%7Bbg%3Alawngreen%7D%5D.svg\" width=\"450\"></a>",
       ],
       "diagram"
     );

test/lib/compile/data/Northwind-key-as-segment.openapi3.json

@@ -2,7 +2,7 @@
   "openapi": "3.0.2",
   "info": {
     "title": "Use the title annotation on your CDS service to provide a meaningful title.",
-    "description": "Use the Core.LongDescription or Core.Description annotation on your CDS service to provide a meaningful description.\n\n## Entity Data Model\n![ER Diagram](https://yuml.me/diagram/class/[Category{bg:lightslategray}],[CustomerDemographic{bg:lightslategray}],[Customer{bg:lightslategray}],[Customer]*-*[CustomerDemographic],[Employee{bg:lightslategray}],[Employee]*-0..1[Employee],[Order_Detail{bg:lightslategray}],[Order_Detail]*-[Order],[Order{bg:lightslategray}],[Order]*-0..1[Customer],[Order]*-0..1[Employee],[Product{bg:lightslategray}],[Product]*-0..1[Category],[Product]-*[Order_Detail],[Region{bg:lightslategray}],[Shipper{bg:lightslategray}],[Shipper]0..1-*[Order],[Supplier{bg:lightslategray}],[Supplier]0..1-*[Product],[Territory{bg:lightslategray}],[Territory]*-[Region],[Territory]*-*[Employee],[Alphabetical_list_of_product{bg:lightslategray}],[Category_Sales_for_1997{bg:lightslategray}],[Current_Product_List{bg:lightslategray}],[Customer_and_Suppliers_by_City{bg:lightslategray}],[Invoice{bg:lightslategray}],[Order_Details_Extended{bg:lightslategray}],[Order_Subtotal{bg:lightslategray}],[Orders_Qry{bg:lightslategray}],[Product_Sales_for_1997{bg:lightslategray}],[Products_Above_Average_Price{bg:lightslategray}],[Products_by_Category{bg:lightslategray}],[Sales_by_Category{bg:lightslategray}],[Sales_Totals_by_Amount{bg:lightslategray}],[Summary_of_Sales_by_Quarter{bg:lightslategray}],[Summary_of_Sales_by_Year{bg:lightslategray}],[Summary_of_Sales_by_Years%20{bg:lawngreen}]++-*>[Summary_of_Sales_by_Year],[Summary_of_Sales_by_Quarters%20{bg:lawngreen}]++-*>[Summary_of_Sales_by_Quarter],[Sales_Totals_by_Amounts%20{bg:lawngreen}]++-*>[Sales_Totals_by_Amount],[Sales_by_Categories%20{bg:lawngreen}]++-*>[Sales_by_Category],[Products_by_Categories%20{bg:lawngreen}]++-*>[Products_by_Category],[Products_Above_Average_Prices%20{bg:lawngreen}]++-*>[Products_Above_Average_Price],[Product_Sales_for_1997%20{bg:lawngreen}]++-*>[Product_Sales_for_1997],[Orders_Qries%20{bg:lawngreen}]++-*>[Orders_Qry],[Order_Subtotals%20{bg:lawngreen}]++-*>[Order_Subtotal],[Order_Details_Extendeds%20{bg:lawngreen}]++-*>[Order_Details_Extended],[Invoices%20{bg:lawngreen}]++-*>[Invoice],[Customer_and_Suppliers_by_Cities%20{bg:lawngreen}]++-*>[Customer_and_Suppliers_by_City],[Current_Product_Lists%20{bg:lawngreen}]++-*>[Current_Product_List],[Category_Sales_for_1997%20{bg:lawngreen}]++-*>[Category_Sales_for_1997],[Alphabetical_list_of_products%20{bg:lawngreen}]++-*>[Alphabetical_list_of_product],[Territories%20{bg:lawngreen}]++-*>[Territory],[Suppliers%20{bg:lawngreen}]++-*>[Supplier],[Shippers%20{bg:lawngreen}]++-*>[Shipper],[Regions%20{bg:lawngreen}]++-*>[Region],[Products%20{bg:lawngreen}]++-*>[Product],[Orders%20{bg:lawngreen}]++-*>[Order],[Order_Details%20{bg:lawngreen}]++-*>[Order_Detail],[Employees%20{bg:lawngreen}]++-*>[Employee],[Customers%20{bg:lawngreen}]++-*>[Customer],[CustomerDemographics%20{bg:lawngreen}]++-*>[CustomerDemographic],[Categories%20{bg:lawngreen}]++-*>[Category])\n\n### Legend\n![Legend](https://yuml.me/diagram/plain;dir:TB;scale:60/class/[External.Type{bg:whitesmoke}],[ComplexType],[EntityType{bg:lightslategray}],[EntitySet/Singleton/Operation{bg:lawngreen}])",
+    "description": "Use the Core.LongDescription or Core.Description annotation on your CDS service to provide a meaningful description.\n\n### Entity Data Model\n[![ER Diagram](https://app.yuml.me/diagram/v1/class/plain/%5BCategory%7Bbg%3Alightslategray%7D%5D%2C%5BCustomerDemographic%7Bbg%3Alightslategray%7D%5D%2C%5BCustomer%7Bbg%3Alightslategray%7D%5D%2C%5BCustomer%5D*-*%5BCustomerDemographic%5D%2C%5BEmployee%7Bbg%3Alightslategray%7D%5D%2C%5BEmployee%5D*-0..1%5BEmployee%5D%2C%5BOrder_Detail%7Bbg%3Alightslategray%7D%5D%2C%5BOrder_Detail%5D*-%5BOrder%5D%2C%5BOrder%7Bbg%3Alightslategray%7D%5D%2C%5BOrder%5D*-0..1%5BCustomer%5D%2C%5BOrder%5D*-0..1%5BEmployee%5D%2C%5BProduct%7Bbg%3Alightslategray%7D%5D%2C%5BProduct%5D*-0..1%5BCategory%5D%2C%5BProduct%5D-*%5BOrder_Detail%5D%2C%5BRegion%7Bbg%3Alightslategray%7D%5D%2C%5BShipper%7Bbg%3Alightslategray%7D%5D%2C%5BShipper%5D0..1-*%5BOrder%5D%2C%5BSupplier%7Bbg%3Alightslategray%7D%5D%2C%5BSupplier%5D0..1-*%5BProduct%5D%2C%5BTerritory%7Bbg%3Alightslategray%7D%5D%2C%5BTerritory%5D*-%5BRegion%5D%2C%5BTerritory%5D*-*%5BEmployee%5D%2C%5BAlphabetical_list_of_product%7Bbg%3Alightslategray%7D%5D%2C%5BCategory_Sales_for_1997%7Bbg%3Alightslategray%7D%5D%2C%5BCurrent_Product_List%7Bbg%3Alightslategray%7D%5D%2C%5BCustomer_and_Suppliers_by_City%7Bbg%3Alightslategray%7D%5D%2C%5BInvoice%7Bbg%3Alightslategray%7D%5D%2C%5BOrder_Details_Extended%7Bbg%3Alightslategray%7D%5D%2C%5BOrder_Subtotal%7Bbg%3Alightslategray%7D%5D%2C%5BOrders_Qry%7Bbg%3Alightslategray%7D%5D%2C%5BProduct_Sales_for_1997%7Bbg%3Alightslategray%7D%5D%2C%5BProducts_Above_Average_Price%7Bbg%3Alightslategray%7D%5D%2C%5BProducts_by_Category%7Bbg%3Alightslategray%7D%5D%2C%5BSales_by_Category%7Bbg%3Alightslategray%7D%5D%2C%5BSales_Totals_by_Amount%7Bbg%3Alightslategray%7D%5D%2C%5BSummary_of_Sales_by_Quarter%7Bbg%3Alightslategray%7D%5D%2C%5BSummary_of_Sales_by_Year%7Bbg%3Alightslategray%7D%5D%2C%5BSummary_of_Sales_by_Years%E2%80%8C%7Bbg%3Alawngreen%7D%5D%2B%2B-*%3E%5BSummary_of_Sales_by_Year%5D%2C%5BSummary_of_Sales_by_Quarters%E2%80%8C%7Bbg%3Alawngreen%7D%5D%2B%2B-*%3E%5BSummary_of_Sales_by_Quarter%5D%2C%5BSales_Totals_by_Amounts%E2%80%8C%7Bbg%3Alawngreen%7D%5D%2B%2B-*%3E%5BSales_Totals_by_Amount%5D%2C%5BSales_by_Categories%E2%80%8C%7Bbg%3Alawngreen%7D%5D%2B%2B-*%3E%5BSales_by_Category%5D%2C%5BProducts_by_Categories%E2%80%8C%7Bbg%3Alawngreen%7D%5D%2B%2B-*%3E%5BProducts_by_Category%5D%2C%5BProducts_Above_Average_Prices%E2%80%8C%7Bbg%3Alawngreen%7D%5D%2B%2B-*%3E%5BProducts_Above_Average_Price%5D%2C%5BProduct_Sales_for_1997%E2%80%8C%7Bbg%3Alawngreen%7D%5D%2B%2B-*%3E%5BProduct_Sales_for_1997%5D%2C%5BOrders_Qries%E2%80%8C%7Bbg%3Alawngreen%7D%5D%2B%2B-*%3E%5BOrders_Qry%5D%2C%5BOrder_Subtotals%E2%80%8C%7Bbg%3Alawngreen%7D%5D%2B%2B-*%3E%5BOrder_Subtotal%5D%2C%5BOrder_Details_Extendeds%E2%80%8C%7Bbg%3Alawngreen%7D%5D%2B%2B-*%3E%5BOrder_Details_Extended%5D%2C%5BInvoices%E2%80%8C%7Bbg%3Alawngreen%7D%5D%2B%2B-*%3E%5BInvoice%5D%2C%5BCustomer_and_Suppliers_by_Cities%E2%80%8C%7Bbg%3Alawngreen%7D%5D%2B%2B-*%3E%5BCustomer_and_Suppliers_by_City%5D%2C%5BCurrent_Product_Lists%E2%80%8C%7Bbg%3Alawngreen%7D%5D%2B%2B-*%3E%5BCurrent_Product_List%5D%2C%5BCategory_Sales_for_1997%E2%80%8C%7Bbg%3Alawngreen%7D%5D%2B%2B-*%3E%5BCategory_Sales_for_1997%5D%2C%5BAlphabetical_list_of_products%E2%80%8C%7Bbg%3Alawngreen%7D%5D%2B%2B-*%3E%5BAlphabetical_list_of_product%5D%2C%5BTerritories%E2%80%8C%7Bbg%3Alawngreen%7D%5D%2B%2B-*%3E%5BTerritory%5D%2C%5BSuppliers%E2%80%8C%7Bbg%3Alawngreen%7D%5D%2B%2B-*%3E%5BSupplier%5D%2C%5BShippers%E2%80%8C%7Bbg%3Alawngreen%7D%5D%2B%2B-*%3E%5BShipper%5D%2C%5BRegions%E2%80%8C%7Bbg%3Alawngreen%7D%5D%2B%2B-*%3E%5BRegion%5D%2C%5BProducts%E2%80%8C%7Bbg%3Alawngreen%7D%5D%2B%2B-*%3E%5BProduct%5D%2C%5BOrders%E2%80%8C%7Bbg%3Alawngreen%7D%5D%2B%2B-*%3E%5BOrder%5D%2C%5BOrder_Details%E2%80%8C%7Bbg%3Alawngreen%7D%5D%2B%2B-*%3E%5BOrder_Detail%5D%2C%5BEmployees%E2%80%8C%7Bbg%3Alawngreen%7D%5D%2B%2B-*%3E%5BEmployee%5D%2C%5BCustomers%E2%80%8C%7Bbg%3Alawngreen%7D%5D%2B%2B-*%3E%5BCustomer%5D%2C%5BCustomerDemographics%E2%80%8C%7Bbg%3Alawngreen%7D%5D%2B%2B-*%3E%5BCustomerDemographic%5D%2C%5BCategories%E2%80%8C%7Bbg%3Alawngreen%7D%5D%2B%2B-*%3E%5BCategory%5D.svg)](https://app.yuml.me/diagram/v1/class/plain/%5BCategory%7Bbg%3Alightslategray%7D%5D%2C%5BCustomerDemographic%7Bbg%3Alightslategray%7D%5D%2C%5BCustomer%7Bbg%3Alightslategray%7D%5D%2C%5BCustomer%5D*-*%5BCustomerDemographic%5D%2C%5BEmployee%7Bbg%3Alightslategray%7D%5D%2C%5BEmployee%5D*-0..1%5BEmployee%5D%2C%5BOrder_Detail%7Bbg%3Alightslategray%7D%5D%2C%5BOrder_Detail%5D*-%5BOrder%5D%2C%5BOrder%7Bbg%3Alightslategray%7D%5D%2C%5BOrder%5D*-0..1%5BCustomer%5D%2C%5BOrder%5D*-0..1%5BEmployee%5D%2C%5BProduct%7Bbg%3Alightslategray%7D%5D%2C%5BProduct%5D*-0..1%5BCategory%5D%2C%5BProduct%5D-*%5BOrder_Detail%5D%2C%5BRegion%7Bbg%3Alightslategray%7D%5D%2C%5BShipper%7Bbg%3Alightslategray%7D%5D%2C%5BShipper%5D0..1-*%5BOrder%5D%2C%5BSupplier%7Bbg%3Alightslategray%7D%5D%2C%5BSupplier%5D0..1-*%5BProduct%5D%2C%5BTerritory%7Bbg%3Alightslategray%7D%5D%2C%5BTerritory%5D*-%5BRegion%5D%2C%5BTerritory%5D*-*%5BEmployee%5D%2C%5BAlphabetical_list_of_product%7Bbg%3Alightslategray%7D%5D%2C%5BCate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Legend\n<a href=\"https://app.yuml.me/diagram/v1/class/plain/%40direction%20LR%0A%5BExternal.Type%7Bbg%3Awhitesmoke%7D%5D-%5BComplexType%5D-%5BEntityType%7Bbg%3Alightslategray%7D%5D-%5BEntitySet%2FSingleton%2FOperation%7Bbg%3Alawngreen%7D%5D.svg\"><img src=\"https://app.yuml.me/diagram/v1/class/plain/%40direction%20LR%0A%5BExternal.Type%7Bbg%3Awhitesmoke%7D%5D-%5BComplexType%5D-%5BEntityType%7Bbg%3Alightslategray%7D%5D-%5BEntitySet%2FSingleton%2FOperation%7Bbg%3Alawngreen%7D%5D.svg\" width=\"450\"></a>",
     "version": ""
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