[Convex Ents] Missing inverse edge

Hi got this this error with this code, seems like I missed an inverse edge but I have no clue where and why:

Error fetching POST  https://youthful-caribou-100.convex.cloud/api/prepare_schema 400 Bad Request: Error: Hit an error while evaluating your schema:
Uncaught Error: Missing inverse edge in table "messages" for edge "messages" in table "privateChats"
    at defineEntSchema (../node_modules/.pnpm/convex-ents@0.7.2_convex@1.11.3_@clerk+clerk-react@5.0.4_react-dom@18.3.1_react@18.3.1__react_3e36zvrjeuxn2krcacprafz7ny/node_modules/convex-ents/src/schema.ts:144:12)
    at <anonymous> (../convex/schema.ts:4:28)

Error fetching POST  https://youthful-caribou-100.convex.cloud/api/prepare_schema 400 Bad Request: Error: Hit an error while evaluating your schema:
Uncaught Error: Missing inverse edge in table "messages" for edge "messages" in table "privateChats"
    at defineEntSchema (../node_modules/.pnpm/convex-ents@0.7.2_convex@1.11.3_@clerk+clerk-react@5.0.4_react-dom@18.3.1_react@18.3.1__react_3e36zvrjeuxn2krcacprafz7ny/node_modules/convex-ents/src/schema.ts:144:12)
    at <anonymous> (../convex/schema.ts:4:28)

const schema = defineEntSchema({
  privateChats: defineEnt({})
    .field("support", v.boolean(), { default: false })
    .edges("users", { to: "users" })
    .edges("messages"),
  users: defineEnt({})
    .field("clerkId", v.string(), { unique: true })
    .field("username", v.string(), { unique: true })
    .field("firstName", v.optional(v.string()))
    .field("lastName", v.optional(v.string()))
    .edges("chats", { to: "privateChats" })
    .edges("messages"),
  messages: defineEnt({})
    .field("content", v.string())
    .edge("privateChats")
    .edge("users"),
});

const schema = defineEntSchema({
  privateChats: defineEnt({})
    .field("support", v.boolean(), { default: false })
    .edges("users", { to: "users" })
    .edges("messages"),
  users: defineEnt({})
    .field("clerkId", v.string(), { unique: true })
    .field("username", v.string(), { unique: true })
    .field("firstName", v.optional(v.string()))
    .field("lastName", v.optional(v.string()))
    .edges("chats", { to: "privateChats" })
    .edges("messages"),
  messages: defineEnt({})
    .field("content", v.string())
    .edge("privateChats")
    .edge("users"),
});

package.json: https://gist.github.com/FleetAdmiralJakob/a56f4a4f6d03c93b0773dd2dc0fbbbcc

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package.json

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4 Replies

Michal Srb•10mo ago

Try .edges("messages", {ref: true}) https://labs.convex.dev/convex-ents/schema#1many-edges The error message could be better

Ent Schema - Convex Ents

Relations, default values, unique fields and more for Convex

FleetAdmiralJakob 🗕 🗗 🗙OP•10mo ago

Thank you for your answer! Did not help. It now looks like this:

const schema = defineEntSchema({
  privateChats: defineEnt({})
    .field("support", v.boolean(), { default: false })
    .edges("users", { to: "users" })
    .edges("messages", { ref: true }),
  users: defineEnt({})
    .field("clerkId", v.string(), { unique: true })
    .field("username", v.string(), { unique: true })
    .field("firstName", v.optional(v.string()))
    .field("lastName", v.optional(v.string()))
    .edges("chats", { to: "privateChats" })
    .edges("messages"),
  messages: defineEnt({})
    .field("content", v.string())
    .edge("privateChats")
    .edge("users"),
});

const schema = defineEntSchema({
  privateChats: defineEnt({})
    .field("support", v.boolean(), { default: false })
    .edges("users", { to: "users" })
    .edges("messages", { ref: true }),
  users: defineEnt({})
    .field("clerkId", v.string(), { unique: true })
    .field("username", v.string(), { unique: true })
    .field("firstName", v.optional(v.string()))
    .field("lastName", v.optional(v.string()))
    .edges("chats", { to: "privateChats" })
    .edges("messages"),
  messages: defineEnt({})
    .field("content", v.string())
    .edge("privateChats")
    .edge("users"),
});

Michal Srb•10mo ago

Use singular:

.edge("privateChat")
.edge("user"),

.edge("privateChat")
.edge("user"),

GitHub

Usability: Table name pluralization in edge() vs edges() is confusi...

I don't think it's very usable to make the table name change pluralization when adding an edge() vs adding an edges(). It seems okay in simple cases: configs: defineEnt({}) .edges("foo...

FleetAdmiralJakob 🗕 🗗 🗙OP•10mo ago

Where exactly? I already use the singular edge twice in the message ent Wait a minute.... Do I have to use different forms (singular/plural), in the edge parameter of edge() and edges()? I am so confused. Oh man. I got it. Ig

const schema = defineEntSchema({
  privateChats: defineEnt({})
    .field("support", v.boolean(), { default: false })
    .edges("users")
    .edges("messages", { ref: true }),
  users: defineEnt({})
    .field("clerkId", v.string(), { unique: true })
    .field("username", v.string(), { unique: true })
    .field("firstName", v.optional(v.string()))
    .field("lastName", v.optional(v.string()))
    .edges("privateChats")
    .edges("messages", { ref: true }),
  messages: defineEnt({})
    .field("content", v.string())
    .edge("privateChat")
    .edge("user"),
});

const schema = defineEntSchema({
  privateChats: defineEnt({})
    .field("support", v.boolean(), { default: false })
    .edges("users")
    .edges("messages", { ref: true }),
  users: defineEnt({})
    .field("clerkId", v.string(), { unique: true })
    .field("username", v.string(), { unique: true })
    .field("firstName", v.optional(v.string()))
    .field("lastName", v.optional(v.string()))
    .edges("privateChats")
    .edges("messages", { ref: true }),
  messages: defineEnt({})
    .field("content", v.string())
    .edge("privateChat")
    .edge("user"),
});

This seems to work Thank you Michal But yeah, it was more trial and error than knowing what I did

[Convex Ents] Missing inverse edge

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