@directus/api/dist/services/graphql/resolvers/get-field-type.js

Directus is a real-time API and App dashboard for managing SQL database content

import { GraphQLBoolean, GraphQLInt, GraphQLNonNull, GraphQLString } from 'graphql';
import { getGraphQLType } from '../../../utils/get-graphql-type.js';
export function getFieldType(schemaComposer, schema, action) {
    const prefix = action === 'read' ? '' : 'write_';
    const Field = schemaComposer.createObjectTC({
        name: `${prefix}directus_fields`,
    });
    if ('directus_fields' in schema.read.collections === false) {
        return Field;
    }
    Field.addFields({
        collection: GraphQLString,
        field: GraphQLString,
        type: GraphQLString,
        meta: schemaComposer.createObjectTC({
            name: `${prefix}directus_fields_meta`,
            fields: Object.values(schema.read.collections['directus_fields'].fields).reduce((acc, field) => {
                acc[field.field] = {
                    type: field.nullable || action === 'write'
                        ? getGraphQLType(field.type, field.special)
                        : new GraphQLNonNull(getGraphQLType(field.type, field.special)),
                    description: field.note,
                };
                return acc;
            }, {}),
        }),
        schema: schemaComposer.createObjectTC({
            name: `${prefix}directus_fields_schema`,
            fields: {
                name: GraphQLString,
                table: GraphQLString,
                data_type: GraphQLString,
                default_value: GraphQLString,
                max_length: GraphQLInt,
                numeric_precision: GraphQLInt,
                numeric_scale: GraphQLInt,
                is_generated: GraphQLBoolean,
                generation_expression: GraphQLString,
                is_indexed: GraphQLBoolean,
                is_nullable: GraphQLBoolean,
                is_unique: GraphQLBoolean,
                is_primary_key: GraphQLBoolean,
                has_auto_increment: GraphQLBoolean,
                foreign_key_column: GraphQLString,
                foreign_key_table: GraphQLString,
                comment: GraphQLString,
            },
        }),
    });
    return Field;
}