Implement approval query; fix helper queries

contracts/cw721-base/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "cw721-base"
-version = "0.10.0"
+version = "0.10.1"
 authors = ["Ethan Frey <ethanfrey@users.noreply.github.com>"]
 edition = "2018"
 description = "Basic implementation cw721 NFTs"
@@ -27,7 +27,7 @@ library = []
 [dependencies]
 cw0 = { version = "0.10.2" }
 cw2 = { version = "0.10.2" }
-cw721 = { path = "../../packages/cw721", version = "0.10.0" }
+cw721 = { path = "../../packages/cw721", version = "0.10.1" }
 cw-storage-plus = { version = "0.10.2" }
 cosmwasm-std = { version = "1.0.0-beta2" }
 schemars = "0.8.6"

contracts/cw721-base/examples/schema.rs

@@ -4,8 +4,8 @@ use std::fs::create_dir_all;
 use cosmwasm_schema::{export_schema, export_schema_with_title, remove_schemas, schema_for};
 
 use cw721::{
-    AllNftInfoResponse, ApprovedForAllResponse, ContractInfoResponse, NftInfoResponse,
-    NumTokensResponse, OwnerOfResponse, TokensResponse,
+    AllNftInfoResponse, ApprovedForAllResponse, ApprovedResponse, ContractInfoResponse,
+    NftInfoResponse, NumTokensResponse, OwnerOfResponse, TokensResponse,
 };
 use cw721_base::{ExecuteMsg, Extension, InstantiateMsg, MinterResponse, QueryMsg};
 
@@ -23,6 +23,7 @@ fn main() {
         &out_dir,
         "AllNftInfoResponse",
     );
+    export_schema(&schema_for!(ApprovedResponse), &out_dir);
     export_schema(&schema_for!(ApprovedForAllResponse), &out_dir);
     export_schema(&schema_for!(ContractInfoResponse), &out_dir);
     export_schema(&schema_for!(MinterResponse), &out_dir);

contracts/cw721-base/schema/approved_response.json

@@ -0,0 +1,94 @@
+{
+  "$schema": "http://json-schema.org/draft-07/schema#",
+  "title": "ApprovedResponse",
+  "type": "object",
+  "required": [
+    "approval"
+  ],
+  "properties": {
+    "approval": {
+      "$ref": "#/definitions/Approval"
+    }
+  },
+  "definitions": {
+    "Approval": {
+      "type": "object",
+      "required": [
+        "expires",
+        "spender"
+      ],
+      "properties": {
+        "expires": {
+          "description": "When the Approval expires (maybe Expiration::never)",
+          "allOf": [
+            {
+              "$ref": "#/definitions/Expiration"
+            }
+          ]
+        },
+        "spender": {
+          "description": "Account that can transfer/send the token",
+          "type": "string"
+        }
+      }
+    },
+    "Expiration": {
+      "description": "Expiration represents a point in time when some event happens. It can compare with a BlockInfo and will return is_expired() == true once the condition is hit (and for every block in the future)",
+      "oneOf": [
+        {
+          "description": "AtHeight will expire when `env.block.height` >= height",
+          "type": "object",
+          "required": [
+            "at_height"
+          ],
+          "properties": {
+            "at_height": {
+              "type": "integer",
+              "format": "uint64",
+              "minimum": 0.0
+            }
+          },
+          "additionalProperties": false
+        },
+        {
+          "description": "AtTime will expire when `env.block.time` >= time",
+          "type": "object",
+          "required": [
+            "at_time"
+          ],
+          "properties": {
+            "at_time": {
+              "$ref": "#/definitions/Timestamp"
+            }
+          },
+          "additionalProperties": false
+        },
+        {
+          "description": "Never will never expire. Used to express the empty variant",
+          "type": "object",
+          "required": [
+            "never"
+          ],
+          "properties": {
+            "never": {
+              "type": "object"
+            }
+          },
+          "additionalProperties": false
+        }
+      ]
+    },
+    "Timestamp": {
+      "description": "A point in time in nanosecond precision.\n\nThis type can represent times from 1970-01-01T00:00:00Z to 2554-07-21T23:34:33Z.\n\n## Examples\n\n``` # use cosmwasm_std::Timestamp; let ts = Timestamp::from_nanos(1_000_000_202); assert_eq!(ts.nanos(), 1_000_000_202); assert_eq!(ts.seconds(), 1); assert_eq!(ts.subsec_nanos(), 202);\n\nlet ts = ts.plus_seconds(2); assert_eq!(ts.nanos(), 3_000_000_202); assert_eq!(ts.seconds(), 3); assert_eq!(ts.subsec_nanos(), 202); ```",
+      "allOf": [
+        {
+          "$ref": "#/definitions/Uint64"
+        }
+      ]
+    },
+    "Uint64": {
+      "description": "A thin wrapper around u64 that is using strings for JSON encoding/decoding, such that the full u64 range can be used for clients that convert JSON numbers to floats, like JavaScript and jq.\n\n# Examples\n\nUse `from` to create instances of this and `u64` to get the value out:\n\n``` # use cosmwasm_std::Uint64; let a = Uint64::from(42u64); assert_eq!(a.u64(), 42);\n\nlet b = Uint64::from(70u32); assert_eq!(b.u64(), 70); ```",
+      "type": "string"
+    }
+  }
+}

contracts/cw721-base/schema/query_msg.json

@@ -30,6 +30,31 @@
       },
       "additionalProperties": false
     },
+    {
+      "description": "Return operator that can access all of the owner's tokens. Return type: `ApprovedResponse`",
+      "type": "object",
+      "required": [
+        "approved"
+      ],
+      "properties": {
+        "approved": {
+          "type": "object",
+          "required": [
+            "operator",
+            "owner"
+          ],
+          "properties": {
+            "operator": {
+              "type": "string"
+            },
+            "owner": {
+              "type": "string"
+            }
+          }
+        }
+      },
+      "additionalProperties": false
+    },
     {
       "description": "List all operators that can access all of the owner's tokens Return type: `ApprovedForAllResponse`",
       "type": "object",

contracts/cw721-base/src/contract_tests.rs

@@ -3,8 +3,8 @@ use cosmwasm_std::testing::{mock_dependencies, mock_env, mock_info};
 use cosmwasm_std::{from_binary, to_binary, CosmosMsg, DepsMut, Empty, Response, WasmMsg};
 
 use cw721::{
-    ApprovedForAllResponse, ContractInfoResponse, Cw721Query, Cw721ReceiveMsg, Expiration,
-    NftInfoResponse, OwnerOfResponse,
+    Approval, ApprovedForAllResponse, ApprovedResponse, ContractInfoResponse, Cw721Query,
+    Cw721ReceiveMsg, Expiration, NftInfoResponse, OwnerOfResponse,
 };
 
 use crate::{
@@ -470,7 +470,7 @@ fn approving_all_revoking_all() {
     };
     let owner = mock_info("demeter", &[]);
     let res = contract
-        .execute(deps.as_mut(), mock_env(), owner, approve_all_msg)
+        .execute(deps.as_mut(), mock_env(), owner.clone(), approve_all_msg)
         .unwrap();
     assert_eq!(
         res,
@@ -480,6 +480,25 @@ fn approving_all_revoking_all() {
             .add_attribute("operator", "random")
     );
 
+    // test approval query
+    let res = contract
+        .approval(
+            deps.as_ref(),
+            mock_env(),
+            owner.sender.into_string(),
+            String::from("random"),
+        )
+        .unwrap();
+    assert_eq!(
+        res,
+        ApprovedResponse {
+            approval: Approval {
+                spender: String::from("random"),
+                expires: Expiration::Never {}
+            }
+        }
+    );
+
     // random can now transfer
     let random = mock_info("random", &[]);
     let transfer_msg = ExecuteMsg::TransferNft {

contracts/cw721-base/src/msg.rs

@@ -81,6 +81,14 @@ pub enum QueryMsg {
         /// unset or false will filter out expired approvals, you must set to true to see them
         include_expired: Option<bool>,
     },
+
+    /// Return operator that can access all of the owner's tokens.
+    /// Return type: `ApprovedResponse`
+    Approved {
+        owner: String,
+        operator: String,
+    },
+
     /// List all operators that can access all of the owner's tokens
     /// Return type: `ApprovedForAllResponse`
     ApprovedForAll {

contracts/cw721-base/src/query.rs

@@ -5,8 +5,8 @@ use cosmwasm_std::{to_binary, Binary, BlockInfo, Deps, Env, Order, Record, StdEr
 
 use cw0::maybe_addr;
 use cw721::{
-    AllNftInfoResponse, ApprovedForAllResponse, ContractInfoResponse, CustomMsg, Cw721Query,
-    Expiration, NftInfoResponse, NumTokensResponse, OwnerOfResponse, TokensResponse,
+    AllNftInfoResponse, ApprovedForAllResponse, ApprovedResponse, ContractInfoResponse, CustomMsg,
+    Cw721Query, Expiration, NftInfoResponse, NumTokensResponse, OwnerOfResponse, TokensResponse,
 };
 use cw_storage_plus::Bound;
 
@@ -79,6 +79,29 @@ where
         Ok(ApprovedForAllResponse { operators: res? })
     }
 
+    fn approval(
+        &self,
+        deps: Deps,
+        _env: Env,
+        owner: String,
+        operator: String,
+    ) -> StdResult<ApprovedResponse> {
+        let owner_addr = deps.api.addr_validate(&owner)?;
+        let operator_addr = deps.api.addr_validate(&operator)?;
+
+        let expires = self
+            .operators
+            .key((&owner_addr, &operator_addr))
+            .load(deps.storage)?;
+
+        Ok(ApprovedResponse {
+            approval: cw721::Approval {
+                spender: operator,
+                expires,
+            },
+        })
+    }
+
     fn tokens(
         &self,
         deps: Deps,
@@ -197,6 +220,9 @@ where
             QueryMsg::AllTokens { start_after, limit } => {
                 to_binary(&self.all_tokens(deps, start_after, limit)?)
             }
+            QueryMsg::Approved { owner, operator } => {
+                to_binary(&self.approval(deps, env, owner, operator)?)
+            }
         }
     }
 }

contracts/cw721-metadata-onchain/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "cw721-metadata-onchain"
-version = "0.10.0"
+version = "0.10.1"
 authors = ["Ethan Frey <ethanfrey@users.noreply.github.com>"]
 edition = "2018"
 description = "Example extending CW721 NFT to store metadata on chain"

contracts/cw721-metadata-onchain/examples/schema.rs

@@ -4,8 +4,8 @@ use std::fs::create_dir_all;
 use cosmwasm_schema::{export_schema, export_schema_with_title, remove_schemas, schema_for};
 
 use cw721::{
-    AllNftInfoResponse, ApprovedForAllResponse, ContractInfoResponse, NftInfoResponse,
-    NumTokensResponse, OwnerOfResponse, TokensResponse,
+    AllNftInfoResponse, ApprovedForAllResponse, ApprovedResponse, ContractInfoResponse,
+    NftInfoResponse, NumTokensResponse, OwnerOfResponse, TokensResponse,
 };
 use cw721_metadata_onchain::{ExecuteMsg, Extension, InstantiateMsg, MinterResponse, QueryMsg};
 
@@ -23,6 +23,7 @@ fn main() {
         &out_dir,
         "AllNftInfoResponse",
     );
+    export_schema(&schema_for!(ApprovedResponse), &out_dir);
     export_schema(&schema_for!(ApprovedForAllResponse), &out_dir);
     export_schema(&schema_for!(ContractInfoResponse), &out_dir);
     export_schema(&schema_for!(MinterResponse), &out_dir);