Foreign Key in Meta.Select

Does anyone know how I can reference a column from the parent in meta. select? See:

<Refine
  dataProvider={dataProvider(supabaseClient)}
  liveProvider={liveProvider(supabaseClient)}
  routerProvider={routerProvider}
  options={{
    liveMode: "auto",
    syncWithLocation: true,
    warnWhenUnsavedChanges: true,
  }}
  resources={[
    // --- SNIP ---
    {
      name: "projects",
      list: "/:tenantId/projects",
      // show: "/:tenantId/projects/:id",
    },
    {
      name: "applications",
      list: "/:tenantId/projects/:projectId/applications",
      // show: "/:tenantId/projects/:id",
      meta: {
        parent: "projects",
        // How to use project_id?
        select: "id"
      },
    },
    // --- SNIP ---
  ]}
>
  {/* --- SNIP ---  */}
</Refine>

<Refine
  dataProvider={dataProvider(supabaseClient)}
  liveProvider={liveProvider(supabaseClient)}
  routerProvider={routerProvider}
  options={{
    liveMode: "auto",
    syncWithLocation: true,
    warnWhenUnsavedChanges: true,
  }}
  resources={[
    // --- SNIP ---
    {
      name: "projects",
      list: "/:tenantId/projects",
      // show: "/:tenantId/projects/:id",
    },
    {
      name: "applications",
      list: "/:tenantId/projects/:projectId/applications",
      // show: "/:tenantId/projects/:id",
      meta: {
        parent: "projects",
        // How to use project_id?
        select: "id"
      },
    },
    // --- SNIP ---
  ]}
>
  {/* --- SNIP ---  */}
</Refine>

14 Replies

kapa.ai•6d ago

Hi @dionysos6378. I'm kapa.ai, your friendly support bot. I will try to answer your question by searching through the knowledge base. :wave: ---------------------- To answer your question about referencing a column from the parent in meta.select, I'll need to provide some context and then address your specific scenario. In refine, the meta property can be used to pass additional information to data provider methods. The select property within meta is specifically used with the Supabase data provider to specify which fields should be selected from the database. Based on the information provided in the Supabase data provider documentation (https://refine.dev/docs/data/packages/supabase/#select---handling-one-to-many-relationship), you can use the select property to handle relationships between tables. However, the documentation doesn't explicitly mention how to reference a column from a parent resource in the way you're trying to do. For your specific case, where you want to reference the project_id from the parent "projects" resource in the "applications" resource, you might need to approach this differently. The meta.select property is typically used to specify which columns to select from the current resource and its related tables, not to reference parameters from the URL or parent resources. Instead, you might need to handle this in your data provider or in the component where you're fetching the data. You could use the useParams hook from your router to get the projectId from the URL, and then use that in your data fetching logic. Here's a general approach you might consider: 1. In your list component for applications, use useParams to get the projectId. 2. Use this projectId in your data fetching logic (e.g., in useTable or useList). For example:

import { useParams } from "react-router-dom";
import { useTable } from "@refinedev/core";

const ApplicationList = () => {
  const { projectId } = useParams();
const { tableProps } = useTable({
    resource: "applications",
    filters: [
      {
        field: "project_id",
        operator: "eq",
        value: projectId,
      },
    ],
    meta: {
      select: "*", // Select all columns from applications
    },
  });

  // Rest of your component
};

import { useParams } from "react-router-dom";
import { useTable } from "@refinedev/core";

const ApplicationList = () => {
  const { projectId } = useParams();
const { tableProps } = useTable({
    resource: "applications",
    filters: [
      {
        field: "project_id",
        operator: "eq",
        value: projectId,
      },
    ],
    meta: {
      select: "*", // Select all columns from applications
    },
  });

  // Rest of your component
};

This approach allows you to filter the applications based on the project_id from the URL, rather than trying to reference it in the meta.select property. Remember, the exact implementation might vary depending on your specific data structure and requirements. If you need more specific guidance, you might want to consult the refine documentation or community forums for more detailed examples or ask for clarification on how to structure your resources and data fetching for your particular use case. ---------------------- Note: you can ask me a follow up question by @ mentioning me again :speech_balloon: ----------------------

kapa.ai•6d ago

<@841352460907708447> Kapa.ai is still learning and improving, please let me know how I did by reacting below.

extended-salmonOP•6d ago

I do want to define this in Refine -> resources to have a centralised place to define the behaviour for fetching data. @kapa.ai @kapa.ai I want to do maybe something like that:

        {
          name: "projects",
          list: "/:tenantId/projects",
          // show: "/:tenantId/projects/:id",
        },
        {
          name: "applications",
          list: "/:tenantId/projects/:projectId/applications",
          // show: "/:tenantId/projects/:id",
          meta: {
            parent: "projects",
            select: `*, projects(*)
                      FROM applications
                      WHERE project_id = :projectId`, // Use :projectId to reference the projectId from the URL params
          },
        },

        {
          name: "projects",
          list: "/:tenantId/projects",
          // show: "/:tenantId/projects/:id",
        },
        {
          name: "applications",
          list: "/:tenantId/projects/:projectId/applications",
          // show: "/:tenantId/projects/:id",
          meta: {
            parent: "projects",
            select: `*, projects(*)
                      FROM applications
                      WHERE project_id = :projectId`, // Use :projectId to reference the projectId from the URL params
          },
        },

kapa.ai•6d ago

Let me check the knowledge base for you again. One moment! :books: ---------------------- I understand you're trying to use a custom SQL-like query in the meta.select property to filter applications based on the projectId from the URL. However, this approach isn't directly supported in refine's Supabase data provider. Let me explain the correct way to achieve what you're looking for. The meta.select property in refine's Supabase data provider is used to specify which fields to select and doesn't support full SQL queries. Instead, it uses Supabase's select method syntax. Here's how you can properly structure your resource to achieve a similar result:

{
  name: "applications",
  list: "/:tenantId/projects/:projectId/applications",
  meta: {
    select: "*, projects(*)",
  },
}

{
  name: "applications",
  list: "/:tenantId/projects/:projectId/applications",
  meta: {
    select: "*, projects(*)",
  },
}

This select statement tells Supabase to fetch all fields from the applications table and all fields from the related projects table Supabase select documentation (https://refine.dev/docs/data/packages/supabase/#select---handling-one-to-many-relationship). To filter the applications based on the projectId from the URL, you should use the permanentFilter property in your data fetching hook (like useTable or useList) within your component. Here's an example of how you might implement this:

import { useParams } from "react-router-dom";
import { useTable } from "@refinedev/core";

const ApplicationList = () => {
  const { projectId } = useParams();

  const { tableProps } = useTable({
    resource: "applications",
    permanentFilter: [
      {
        field: "project_id",
        operator: "eq",
        value: projectId,
      },
    ],
    meta: {
      select: "*, projects(*)",
    },
  });

  // Rest of your component
};

import { useParams } from "react-router-dom";
import { useTable } from "@refinedev/core";

const ApplicationList = () => {
  const { projectId } = useParams();

  const { tableProps } = useTable({
    resource: "applications",
    permanentFilter: [
      {
        field: "project_id",
        operator: "eq",
        value: projectId,
      },
    ],
    meta: {
      select: "*, projects(*)",
    },
  });

  // Rest of your component
};

This approach allows you to: 1. Select all fields from both the applications and related projects tables. 2. Filter the applications based on the projectId from the URL. Remember, the exact implementation might vary depending on your specific data structure and requirements. If you need more advanced querying capabilities, you might need to consider creating a custom data provider or using Supabase's more advanced features. Supabase data provider documentation (https://refine.dev/docs/data/packages/supabase/#using-meta-to-pass-values-to-data-provider) provides more information on using the meta property and handling relationships in your queries. ---------------------- Note: you can ask me a follow up question by @ mentioning me again :speech_balloon: ----------------------

kapa.ai•6d ago

<@841352460907708447> Kapa.ai is still learning and improving, please let me know how I did by reacting below.

extended-salmonOP•6d ago

Can I use the meta prop for that @kapa.ai ?

kapa.ai•6d ago

Let me check the knowledge base for you again. One moment! :books: ---------------------- Yes, you can use the meta property to achieve what you're looking for, but not exactly in the way you initially proposed. The meta property in refine is a powerful tool for passing additional information to data provider methods, including the Supabase data provider. Based on the refine documentation on the meta concept (https://refine.dev/docs/guides-concepts/general-concepts/#meta-concept), you can use the meta property to pass information from various sources, including the URL parameters. Here's how you can modify your resource definition to use the meta property effectively:

{
  name: "applications",
  list: "/:tenantId/projects/:projectId/applications",
  meta: {
    select: "*, projects(*)",
    filters: [
      {
        field: "project_id",
        operator: "eq",
        value: ":projectId",
      },
    ],
  },
}

{
  name: "applications",
  list: "/:tenantId/projects/:projectId/applications",
  meta: {
    select: "*, projects(*)",
    filters: [
      {
        field: "project_id",
        operator: "eq",
        value: ":projectId",
      },
    ],
  },
}

In this setup: 1. The select property in meta specifies that you want to fetch all fields from both the applications and related projects tables. 2. The filters property in meta sets up a filter that will use the :projectId parameter from the URL. However, it's important to note that you'll need to handle the URL parameters in your data provider. The Supabase data provider will need to be configured to interpret the :projectId placeholder and replace it with the actual value from the URL. You can achieve this by customizing your data provider to handle these placeholders. Here's a conceptual example of how you might modify your data provider:

const myDataProvider = {
  getList: async ({ resource, filters, meta }) => {
    const urlParams = useParams(); // You'll need to implement this to get URL parameters
    const processedFilters = filters.map(filter => ({
      ...filter,
      value: filter.value.startsWith(':') ? urlParams[filter.value.slice(1)] : filter.value
    }));

    // Use processedFilters in your Supabase query
    // ...
  },
  // ... other methods
};

const myDataProvider = {
  getList: async ({ resource, filters, meta }) => {
    const urlParams = useParams(); // You'll need to implement this to get URL parameters
    const processedFilters = filters.map(filter => ({
      ...filter,
      value: filter.value.startsWith(':') ? urlParams[filter.value.slice(1)] : filter.value
    }));

    // Use processedFilters in your Supabase query
    // ...
  },
  // ... other methods
};

This approach allows you to use the meta property to specify both the fields to select and the filters to apply, while still allowing for dynamic values from the URL. Remember, the exact implementation might vary depending on your specific setup and requirements. You may need to adjust this approach based on how you've configured your routing and data provider. For more detailed information on using the meta property in refine, you can refer to the meta concept documentation (https://refine.dev/docs/guides-concepts/general-concepts/#meta-concept). ---------------------- Note: you can ask me a follow up question by @ mentioning me again :speech_balloon: ----------------------

kapa.ai•6d ago

<@841352460907708447> Kapa.ai is still learning and improving, please let me know how I did by reacting below.

extended-salmonOP•6d ago

This is not working, can someone please help, I want to do something like that:

        {
          name: "projects",
          list: "/:tenantId/projects",
          // show: "/:tenantId/projects/:id",
        },
        {
          name: "applications",
          list: "/:tenantId/projects/:projectId/applications",
          // show: "/:tenantId/projects/:id",
          meta: {
            select: "*, projects(*)",
            filters: [
              {
                field: "project_id",
                operator: "eq",
                value: ":projectId",
              },
            ],
          },
        },

        {
          name: "projects",
          list: "/:tenantId/projects",
          // show: "/:tenantId/projects/:id",
        },
        {
          name: "applications",
          list: "/:tenantId/projects/:projectId/applications",
          // show: "/:tenantId/projects/:id",
          meta: {
            select: "*, projects(*)",
            filters: [
              {
                field: "project_id",
                operator: "eq",
                value: ":projectId",
              },
            ],
          },
        },

@Omer any clue please? I am using supabase. @kapa.ai can I define filters in resources?

kapa.ai•6d ago

Let me check the knowledge base for you again. One moment! :books: ---------------------- Yes, you can define filters in resources within refine. This is typically done using the meta property of a resource definition. Here's how you can do it:

{
  name: "applications",
  list: "/:tenantId/projects/:projectId/applications",
  meta: {
    filters: [
      {
        field: "project_id",
        operator: "eq",
        value: ":projectId",
      },
    ],
  },
}

{
  name: "applications",
  list: "/:tenantId/projects/:projectId/applications",
  meta: {
    filters: [
      {
        field: "project_id",
        operator: "eq",
        value: ":projectId",
      },
    ],
  },
}

In this example, we're defining a filter in the resource that will filter applications based on the project_id field. The :projectId value is a placeholder that will be replaced with the actual value from the URL parameters. This approach is particularly useful for setting up permanent filters that should always be applied when querying this resource. It's important to note that these filters defined in the resource will be combined with any additional filters you might specify in your data fetching hooks (like useTable or useList). However, keep in mind that the exact behavior of these filters can depend on your data provider. The Supabase data provider, for instance, supports this kind of filtering, but you might need to ensure your data provider is set up to handle URL parameter placeholders like :projectId. For more detailed information on using filters and the meta property in refine, you can refer to the meta concept documentation (https://refine.dev/docs/guides-concepts/general-concepts/#meta-concept) and the Supabase data provider documentation (https://refine.dev/docs/data/packages/supabase/#using-meta-to-pass-values-to-data-provider). Remember, the most effective way to use these filters might vary depending on your specific use case and data structure. You may need to adjust this approach based on your particular requirements and how you've configured your routing and data provider. ---------------------- Note: you can ask me a follow up question by @ mentioning me again :speech_balloon: ----------------------

kapa.ai•6d ago

<@841352460907708447> Kapa.ai is still learning and improving, please let me know how I did by reacting below.

extended-salmonOP•6d ago

They dont work - I use a liveprovider They dont work I use a liveprovider @kapa.ai

kapa.ai•6d ago

Let me check the knowledge base for you again. One moment! :books: ---------------------- I apologize for the confusion. You're right that there are some limitations when using filters with a liveProvider, especially with Supabase. Let me explain the current situation based on the available information. According to a GitHub issue discussion (https://github.com/refinedev/refine/issues/6360), there are some challenges with using multiple filters in Supabase Realtime subscriptions. The refine team has acknowledged this issue and is working on a solution. Currently, the Supabase liveProvider in refine doesn't fully support complex filtering for realtime subscriptions. This is partly due to limitations in Supabase Realtime itself. Here's what's happening: 1. The liveProvider attempts to use filters in the subscription, but complex and relation-based filters might not work as expected in Supabase Realtime. 2. The refine team is considering showing a warning when multiple filters are used and allowing users to override the liveProvider's filters using a meta.realtimeFilters prop. As a workaround, some users have reported success with the following approach: 1. Use one filter that does most of the server-side filtering (about 90% of the filtering). 2. Perform the rest of the filtering on the client side. However, this approach may not be ideal for all use cases, especially if you need efficient, real-time updates based on complex filters. The refine team is actively investigating this issue and considering potential solutions. They're looking into the possibility of allowing users to override the liveProvider's filters and potentially showing warnings when multiple filters are used. For the most up-to-date information on this issue and potential workarounds, I recommend following the GitHub issue discussion (https://github.com/refinedev/refine/issues/6360) or reaching out to the refine community for the latest advice on handling this situation. In the meantime, you might need to consider alternative approaches, such as using broader subscriptions and implementing additional filtering logic in your application code, depending on your specific requirements. ---------------------- Note: you can ask me a follow up question by @ mentioning me again :speech_balloon: ----------------------

kapa.ai•6d ago

<@841352460907708447> Kapa.ai is still learning and improving, please let me know how I did by reacting below.