Merge pull request #2724 from Budibase/fix/mysql-issues

Fix MySQL issues

packages/server/scripts/integrations/postgres/docker-compose.yml

@@ -15,7 +15,7 @@ services:
       - ./init.sql:/docker-entrypoint-initdb.d/init.sql
 
   pgadmin:
-    container_name: pgadmin
+    container_name: pgadmin-pg
     image: dpage/pgadmin4
     restart: always
     environment:

packages/server/src/api/controllers/row/ExternalRequest.ts

@@ -544,6 +544,9 @@ module External {
         extra: {
           idFilter: buildFilters(id || generateIdForRow(row, table), {}, table),
         },
+        meta: {
+          table,
+        }
       }
       // can't really use response right now
       const response = await makeExternalQuery(appId, json)

packages/server/src/api/routes/tests/datasource.spec.js

@@ -94,7 +94,8 @@ describe("/datasources", () => {
         .expect(200)
       // this is mock data, can't test it
       expect(res.body).toBeDefined()
-      expect(pg.queryMock).toHaveBeenCalledWith(`select "users"."name" as "users.name", "users"."age" as "users.age" from "users" where "users"."name" ilike $1 limit $2`, ["John%", 5000])
+      const expSql = `select "users"."name" as "users.name", "users"."age" as "users.age" from (select * from "users" where "users"."name" ilike $1 limit $2) as "users"`
+      expect(pg.queryMock).toHaveBeenCalledWith(expSql, ["John%", 5000])
     })
   })
 

packages/server/src/definitions/datasource.ts

@@ -1,3 +1,5 @@
+import {Table} from "./common";
+
 export enum Operation {
   CREATE = "CREATE",
   READ = "READ",
@@ -136,6 +138,9 @@ export interface QueryJson {
   sort?: SortJson
   paginate?: PaginationJson
   body?: object
+  meta?: {
+    table?: Table,
+  }
   extra?: {
     idFilter?: SearchFilters
   }

packages/server/src/integrations/base/sql.ts

@@ -1,7 +1,5 @@
 import { Knex, knex } from "knex"
 const BASE_LIMIT = 5000
-// if requesting a single row then need to up the limit for the sake of joins
-const SINGLE_ROW_LIMIT = 100
 import {
   QueryJson,
   SearchFilters,
@@ -146,46 +144,48 @@ function buildCreate(
 function buildRead(knex: Knex, json: QueryJson, limit: number): KnexQuery {
   let { endpoint, resource, filters, sort, paginate, relationships } = json
   const tableName = endpoint.entityId
-  let query: KnexQuery = knex(tableName)
   // select all if not specified
   if (!resource) {
     resource = { fields: [] }
   }
+  let selectStatement: string|string[] = "*"
   // handle select
   if (resource.fields && resource.fields.length > 0) {
     // select the resources as the format "table.columnName" - this is what is provided
     // by the resource builder further up
-    query = query.select(resource.fields.map(field => `${field} as ${field}`))
-  } else {
-    query = query.select("*")
+    selectStatement = resource.fields.map(field => `${field} as ${field}`)
+  }
+  let foundLimit = limit || BASE_LIMIT
+  // handle pagination
+  let foundOffset: number | null = null
+  if (paginate && paginate.page && paginate.limit) {
+    // @ts-ignore
+    const page = paginate.page <= 1 ? 0 : paginate.page - 1
+    const offset = page * paginate.limit
+    foundLimit = paginate.limit
+    foundOffset = offset
+  } else if (paginate && paginate.limit) {
+    foundLimit = paginate.limit
+  }
+  // start building the query
+  let query: KnexQuery = knex(tableName).limit(foundLimit)
+  if (foundOffset) {
+    query = query.offset(foundOffset)
   }
-  // handle where
-  query = addFilters(tableName, query, filters)
-  // handle join
-  query = addRelationships(query, tableName, relationships)
-  // handle sorting
   if (sort) {
     for (let [key, value] of Object.entries(sort)) {
       const direction = value === SortDirection.ASCENDING ? "asc" : "desc"
       query = query.orderBy(key, direction)
     }
   }
-  let foundLimit = limit || BASE_LIMIT
-  // handle pagination
-  if (paginate && paginate.page && paginate.limit) {
+  query = addFilters(tableName, query, filters)
+  // @ts-ignore
+  let preQuery: KnexQuery = knex({
     // @ts-ignore
-    const page = paginate.page <= 1 ? 0 : paginate.page - 1
-    const offset = page * paginate.limit
-    foundLimit = paginate.limit
-    query = query.offset(offset)
-  } else if (paginate && paginate.limit) {
-    foundLimit = paginate.limit
-  }
-  if (foundLimit === 1) {
-    foundLimit = SINGLE_ROW_LIMIT
-  }
-  query = query.limit(foundLimit)
-  return query
+    [tableName]: query,
+  }).select(selectStatement)
+  // handle joins
+  return addRelationships(preQuery, tableName, relationships)
 }
 
 function buildUpdate(

packages/server/src/integrations/mysql.ts

@@ -104,7 +104,7 @@ module MySQLModule {
     client: any,
     query: SqlQuery,
     connect: boolean = true
-  ): Promise<any[]> {
+  ): Promise<any[]|any> {
     // Node MySQL is callback based, so we must wrap our call in a promise
     return new Promise((resolve, reject) => {
       if (connect) {
@@ -238,6 +238,23 @@ module MySQLModule {
       return internalQuery(this.client, input, false)
     }
 
+    // when creating if an ID has been inserted need to make sure
+    // the id filter is enriched with it before trying to retrieve the row
+    checkLookupKeys(results: any, json: QueryJson) {
+      if (!results?.insertId || !json.meta?.table || !json.meta.table.primary) {
+        return json
+      }
+      const primaryKey = json.meta.table.primary?.[0]
+      json.extra = {
+        idFilter: {
+          equal: {
+            [primaryKey]: results.insertId
+          },
+        }
+      }
+      return json
+    }
+
     async query(json: QueryJson) {
       const operation = this._operation(json)
       this.client.connect()
@@ -250,7 +267,7 @@ module MySQLModule {
       const results = await internalQuery(this.client, input, false)
       // same as delete, manage returning
       if (operation === Operation.CREATE || operation === Operation.UPDATE) {
-        row = this.getReturningRow(json)
+        row = this.getReturningRow(this.checkLookupKeys(results, json))
       }
       this.client.end()
       if (operation !== Operation.READ) {

packages/server/src/integrations/tests/sql.spec.js

@@ -57,7 +57,7 @@ describe("SQL query builder", () => {
     const query = sql._query(generateReadJson())
     expect(query).toEqual({
       bindings: [limit],
-      sql: `select * from "${TABLE_NAME}" limit $1`
+      sql: `select * from (select * from "${TABLE_NAME}" limit $1) as "${TABLE_NAME}"`
     })
   })
 
@@ -68,7 +68,7 @@ describe("SQL query builder", () => {
     }))
     expect(query).toEqual({
       bindings: [limit],
-      sql: `select "${TABLE_NAME}"."name" as "${nameProp}", "${TABLE_NAME}"."age" as "${ageProp}" from "${TABLE_NAME}" limit $1`
+      sql: `select "${TABLE_NAME}"."name" as "${nameProp}", "${TABLE_NAME}"."age" as "${ageProp}" from (select * from "${TABLE_NAME}" limit $1) as "${TABLE_NAME}"`
     })
   })
 
@@ -82,7 +82,7 @@ describe("SQL query builder", () => {
     }))
     expect(query).toEqual({
       bindings: ["John%", limit],
-      sql: `select * from "${TABLE_NAME}" where "${TABLE_NAME}"."name" ilike $1 limit $2`
+      sql: `select * from (select * from "${TABLE_NAME}" where "${TABLE_NAME}"."name" ilike $1 limit $2) as "${TABLE_NAME}"`
     })
   })
 
@@ -99,7 +99,7 @@ describe("SQL query builder", () => {
     }))
     expect(query).toEqual({
       bindings: [2, 10, limit],
-      sql: `select * from "${TABLE_NAME}" where "${TABLE_NAME}"."age" between $1 and $2 limit $3`
+      sql: `select * from (select * from "${TABLE_NAME}" where "${TABLE_NAME}"."age" between $1 and $2 limit $3) as "${TABLE_NAME}"`
     })
   })
 
@@ -115,7 +115,7 @@ describe("SQL query builder", () => {
     }))
     expect(query).toEqual({
       bindings: [10, "John", limit],
-      sql: `select * from "${TABLE_NAME}" where ("${TABLE_NAME}"."age" = $1) or ("${TABLE_NAME}"."name" = $2) limit $3`
+      sql: `select * from (select * from "${TABLE_NAME}" where ("${TABLE_NAME}"."age" = $1) or ("${TABLE_NAME}"."name" = $2) limit $3) as "${TABLE_NAME}"`
     })
   })
 
@@ -160,7 +160,7 @@ describe("SQL query builder", () => {
     const query = new Sql("mssql", 10)._query(generateReadJson())
     expect(query).toEqual({
       bindings: [10],
-      sql: `select top (@p0) * from [${TABLE_NAME}]`
+      sql: `select * from (select top (@p0) * from [${TABLE_NAME}]) as [${TABLE_NAME}]`
     })
   })
 
@@ -168,7 +168,7 @@ describe("SQL query builder", () => {
     const query = new Sql("mysql", 10)._query(generateReadJson())
     expect(query).toEqual({
       bindings: [10],
-      sql: `select * from \`${TABLE_NAME}\` limit ?`
+      sql: `select * from (select * from \`${TABLE_NAME}\` limit ?) as \`${TABLE_NAME}\``
     })
   })
 })