Add support for SQL in variables

docs/guide.md

@@ -1975,7 +1975,7 @@ To use Yugabyte in your local development flow just uncomment the following line
 
 ## Developing Super Graph
 
-If you want to build and run Super Graph from code then the below commands will build the web ui and launch Super Graph in developer mode with a watcher to rebuild on code changes. And the demo rails app is also launched to make it essier to test changes.
+If you want to build and run Super Graph from code then the below commands will build the web ui and launch Super Graph in developer mode with a watcher to rebuild on code changes. And the demo rails app is also launched to make it easier to test changes.
 
 ```bash
 

psql/query.go

@@ -1127,9 +1127,15 @@ func (c *compilerContext) renderVal(ex *qcode.Exp, vars map[string]string, col *
 
 	switch ex.Type {
 	case qcode.ValVar:
-		if val, ok := vars[ex.Val]; ok {
+		val, ok := vars[ex.Val]
+		switch {
+		case ok && strings.HasPrefix(val, "sql:"):
+			io.WriteString(c.w, ` (`)
+			io.WriteString(c.w, val[4:])
+			io.WriteString(c.w, `)`)
+		case ok:
 			squoted(c.w, val)
-		} else {
+		default:
 			io.WriteString(c.w, ` '{{`)
 			io.WriteString(c.w, ex.Val)
 			io.WriteString(c.w, `}}'`)

serv/args.go

@@ -57,8 +57,6 @@ func argMap(ctx context.Context, vars []byte) func(w io.Writer, tag string) (int
 			return w.Write(v1)
 		}
 
-		fmt.Println(">>>", tag, string(v))
-
 		return w.Write(escQuote(fields[0].Value))
 	}
 }

tmpl/dev.yml

@@ -125,7 +125,9 @@ database:
 
   # Define additional variables here to be used with filters
   variables:
-    admin_account_id: "5"
+    #admin_account_id: "5"
+    admin_account_id: "sql:select id from users where admin = true limit 1"
+
 
   # Field and table names that you wish to block
   blocklist:
@@ -168,26 +170,14 @@ tables:
     table: users
 
 
-roles_query: "SELECT * FROM users WHERE id = $user_id"
+#roles_query: "SELECT * FROM users WHERE id = $user_id"
 
 roles:
   - name: anon
     tables:
-      - name: products
-        limit: 10
-
+      - name: users
         query:
-          columns: ["id", "name", "description" ]
-          aggregation: false
-
-        insert:
-          block: false
-            
-        update:
-          block: false
-
-        delete:
-          block: false
+          limit: 10
 
   - name: user
     tables:
@@ -215,8 +205,8 @@ roles:
         delete:
           block: true
 
-  - name: admin
-    match: id = 1000
-    tables:
-      - name: users
-        filters: []
+  # - name: admin
+  #   match: id = 1000
+  #   tables:
+  #     - name: users
+  #       filters: []