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What is @tapgiants/field-gql

@tapgiants/field-gql goal is to provide easy way to load the fields data in your form fields.

Installation

Install peer dependencies:

yarn add apollo-boost graphql react-apollo

Install @tapgiants/field-gql

yarn add @tapgiants/field-gql

FieldGQL API

FieldGQL component follows the convetions described in the GraphQL conventions section.

So be sure you follow the list convetions.

Props

name: String

Field name. If valuePath is not provited it will use it as a value of valuePath.

label: String

Field label.

FieldCtxComponent: React.Component

FieldCtxComponent will receive all the passed props to the FieldGQL component. When the data is fetched from the server this component will receive array with the data as an options props.

Oprions format:

[
  { value: 'BG', label: 'Bulgaria' },
  { value: 'BF', label: 'Burkina Faso' },
  { value: 'BI', label: 'Burundi' }
]

valuesQuery: Object

This query will be used in order to fetch the data from a GraphQL server. Query reference.

valueKey: String

A property name in the json collection that will be returned from the server. It will be used in order to fill in the value property in the options prop.

valueLabel: String

A property name in the json collection that will be returned from the server. It will be used in order to fill in the label property in the options prop.

valuePath: String

Example:

// Server response:
{
  data: {
    industries: { // Use `industries` as a `valuePath`.
      list: [ // list key is a part of the GraphQL conventions described bellow.
        {
          id: 'BG', // Use `id` as a `valueKey`
          name: 'Bulgaria' // Use `name` as a `valueLabel`.
        }
      ]
    }
  }
}

FieldGQL example

import React from 'react';
import { ApolloWrapper } from '@tapgiants/graphql';
import FieldGQL from '@tapgiants/field-gql';
import gql from 'graphql-tag';

const INDUSTRIES = gql`
  query {
    industries {
      list {
        id
        name
      }
    }
  }
`;

const Field = ({ name, label, options, onChange }) => (
  <React.Fragment>
    <label>{label}</label>

    <select name={name} onChange={onChange}>
      {options.map(({ value, label }) => <option key={value} value={value}>{label}</option>)}
    </select>
  </React.Fragment>
);

export default () => (
  <ApolloWrapper uri="http://localhost:4001/api">
    <FieldGQL
      name="industries"
      label="Industries"
      valuesQuery={INDUSTRIES}
      valueKey="id"
      valueLabel="name"
      FieldCtxComponent={Field}
      onChange={(e) => console.log(e.target.value)}
    />
  </ApolloWrapper>
);

How to use FieldGQL with the @tapgiants/form

First check Tap Giants form package.

In order FieldGQL to be a part of your form context just set FieldCtxComponent to Tap Giants form field.

FieldGQL with Tap Giants form example

import React from 'react';
import gql from 'graphql-tag';
import Form, { Field, Submit, withForm } from '@tapgiants/form';
import { ApolloWrapper } from '@tapgiants/graphql';
import FieldGQL from '@tapgiants/field-gql';

const INDUSTRIES = gql`
  query {
    industries {
      list {
        id
        name
      }
    }
  }
`;

const COUNTRIES = gql`
  query {
    countries {
      list {
        code
        name
      }
    }
  }
`;

const FormMarkup = ({ formName, ...formikBag }) => (
  <ApolloWrapper uri="http://localhost:4001/api">
    <Form {...formikBag}>
      <h1>{formName}</h1>

      <Field
        name="companyName"
        label="Company Name"
      />

      <FieldGQL
        input="select"
        name="country"
        label="country"
        valuesQuery={COUNTRIES}
        valuePath="countries"
        valueKey="code"
        valueLabel="name"
        FieldCtxComponent={Field}
      />

      <FieldGQL
        input="checkboxGroup"
        name="industries"
        label="Industries"
        valuesQuery={INDUSTRIES}
        valueKey="id"
        valueLabel="name"
        FieldCtxComponent={Field}
      />

      <Submit>Save</Submit>
    </Form>
  </ApolloWrapper>
);

const TapGiantsForm = withForm({
  mapPropsToValues: () => ({ companyName: '', industries: [], country: '' }),
  handleSubmit: (values, formikBag) => {
    const { setSubmitting } = formikBag;

    setSubmitting(false);

    console.log('handleSubmit values: ', values);
    // handleSubmit values: { companyName: "", industries: [], country: '' }

    console.log('handleSubmit formikBag', formikBag);
    // handleSubmit formikBag: check https://jaredpalmer.com/formik/docs/api/withFormik
  }
})(FormMarkup);

export default () => <TapGiantsForm formName="Test Form" />;

GraphQL conventions

Add link to an external repo that describes all the conventions.

Development

Link the package from your target project and run yarn start. This will start the webpacker watcher.

Once you are satisfied with your changes, use yarn publish to push the new version to npmjs.org.

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