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431
stackit/services/postgresflex/user/resource.go
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431
stackit/services/postgresflex/user/resource.go
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package postgresflex
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import (
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"context"
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"fmt"
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"strings"
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"time"
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"github.com/hashicorp/terraform-plugin-framework-validators/setvalidator"
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"github.com/hashicorp/terraform-plugin-framework-validators/stringvalidator"
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"github.com/hashicorp/terraform-plugin-framework/schema/validator"
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"github.com/hashicorp/terraform-plugin-log/tflog"
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"github.com/stackitcloud/terraform-provider-stackit/stackit/conversion"
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"github.com/stackitcloud/terraform-provider-stackit/stackit/core"
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"github.com/stackitcloud/terraform-provider-stackit/stackit/validate"
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"github.com/hashicorp/terraform-plugin-framework/attr"
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"github.com/hashicorp/terraform-plugin-framework/path"
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"github.com/hashicorp/terraform-plugin-framework/resource"
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"github.com/hashicorp/terraform-plugin-framework/resource/schema"
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"github.com/hashicorp/terraform-plugin-framework/resource/schema/planmodifier"
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"github.com/hashicorp/terraform-plugin-framework/resource/schema/setplanmodifier"
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"github.com/hashicorp/terraform-plugin-framework/resource/schema/stringplanmodifier"
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"github.com/hashicorp/terraform-plugin-framework/types"
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"github.com/stackitcloud/stackit-sdk-go/core/config"
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"github.com/stackitcloud/stackit-sdk-go/services/postgresflex"
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)
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// Ensure the implementation satisfies the expected interfaces.
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var (
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_ resource.Resource = &userResource{}
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_ resource.ResourceWithConfigure = &userResource{}
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_ resource.ResourceWithImportState = &userResource{}
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)
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type Model struct {
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Id types.String `tfsdk:"id"` // needed by TF
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UserId types.String `tfsdk:"user_id"`
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InstanceId types.String `tfsdk:"instance_id"`
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ProjectId types.String `tfsdk:"project_id"`
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Username types.String `tfsdk:"username"`
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Roles types.Set `tfsdk:"roles"`
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Password types.String `tfsdk:"password"`
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Host types.String `tfsdk:"host"`
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Port types.Int64 `tfsdk:"port"`
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}
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// NewUserResource is a helper function to simplify the provider implementation.
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func NewUserResource() resource.Resource {
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return &userResource{}
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}
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// userResource is the resource implementation.
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type userResource struct {
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client *postgresflex.APIClient
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}
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// Metadata returns the resource type name.
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func (r *userResource) Metadata(_ context.Context, req resource.MetadataRequest, resp *resource.MetadataResponse) {
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resp.TypeName = req.ProviderTypeName + "_postgresflex_user"
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}
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// Configure adds the provider configured client to the resource.
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func (r *userResource) Configure(ctx context.Context, req resource.ConfigureRequest, resp *resource.ConfigureResponse) {
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// Prevent panic if the provider has not been configured.
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if req.ProviderData == nil {
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return
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}
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providerData, ok := req.ProviderData.(core.ProviderData)
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if !ok {
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resp.Diagnostics.AddError("Unexpected Data Source Configure Type", fmt.Sprintf("Expected stackit.ProviderData, got %T", req.ProviderData))
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return
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}
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var apiClient *postgresflex.APIClient
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var err error
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if providerData.PostgresFlexCustomEndpoint != "" {
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apiClient, err = postgresflex.NewAPIClient(
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config.WithCustomAuth(providerData.RoundTripper),
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config.WithEndpoint(providerData.PostgresFlexCustomEndpoint),
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)
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} else {
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apiClient, err = postgresflex.NewAPIClient(
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config.WithCustomAuth(providerData.RoundTripper),
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config.WithRegion(providerData.Region),
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)
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}
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if err != nil {
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resp.Diagnostics.AddError("Could not Configure API Client", err.Error())
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return
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}
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tflog.Info(ctx, "Postgresflex user client configured")
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r.client = apiClient
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}
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// Schema defines the schema for the resource.
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func (r *userResource) Schema(_ context.Context, _ resource.SchemaRequest, resp *resource.SchemaResponse) {
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descriptions := map[string]string{
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"main": "PostgresFlex user resource schema.",
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"id": "Terraform's internal resource ID.",
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"user_id": "User ID.",
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"instance_id": "ID of the PostgresFlex instance.",
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"project_id": "STACKIT project ID to which the instance is associated.",
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}
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resp.Schema = schema.Schema{
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Description: descriptions["main"],
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Attributes: map[string]schema.Attribute{
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"id": schema.StringAttribute{
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Description: descriptions["id"],
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Computed: true,
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PlanModifiers: []planmodifier.String{
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stringplanmodifier.UseStateForUnknown(),
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},
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},
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"user_id": schema.StringAttribute{
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Description: descriptions["user_id"],
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Computed: true,
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PlanModifiers: []planmodifier.String{
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stringplanmodifier.UseStateForUnknown(),
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},
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Validators: []validator.String{
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validate.NoSeparator(),
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},
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},
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"instance_id": schema.StringAttribute{
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Description: descriptions["instance_id"],
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Required: true,
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PlanModifiers: []planmodifier.String{
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stringplanmodifier.RequiresReplace(),
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stringplanmodifier.UseStateForUnknown(),
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},
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Validators: []validator.String{
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validate.UUID(),
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validate.NoSeparator(),
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},
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},
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"project_id": schema.StringAttribute{
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Description: descriptions["project_id"],
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Required: true,
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PlanModifiers: []planmodifier.String{
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stringplanmodifier.RequiresReplace(),
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stringplanmodifier.UseStateForUnknown(),
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},
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Validators: []validator.String{
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validate.UUID(),
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validate.NoSeparator(),
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},
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},
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"username": schema.StringAttribute{
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Required: true,
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PlanModifiers: []planmodifier.String{
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stringplanmodifier.RequiresReplace(),
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},
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},
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"roles": schema.SetAttribute{
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ElementType: types.StringType,
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Required: true,
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PlanModifiers: []planmodifier.Set{
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setplanmodifier.RequiresReplace(),
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},
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Validators: []validator.Set{
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setvalidator.ValueStringsAre(
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stringvalidator.OneOf("login", "createdb"),
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),
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},
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},
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"password": schema.StringAttribute{
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Computed: true,
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Sensitive: true,
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},
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"host": schema.StringAttribute{
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Computed: true,
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},
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"port": schema.Int64Attribute{
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Computed: true,
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},
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},
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}
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}
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// Create creates the resource and sets the initial Terraform state.
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func (r *userResource) Create(ctx context.Context, req resource.CreateRequest, resp *resource.CreateResponse) { // nolint:gocritic // function signature required by Terraform
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var model Model
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diags := req.Plan.Get(ctx, &model)
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resp.Diagnostics.Append(diags...)
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if resp.Diagnostics.HasError() {
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return
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}
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projectId := model.ProjectId.ValueString()
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instanceId := model.InstanceId.ValueString()
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ctx = tflog.SetField(ctx, "project_id", projectId)
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ctx = tflog.SetField(ctx, "instance_id", instanceId)
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var roles []string
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if !(model.Roles.IsNull() || model.Roles.IsUnknown()) {
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diags = model.Roles.ElementsAs(ctx, &roles, false)
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resp.Diagnostics.Append(diags...)
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if resp.Diagnostics.HasError() {
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return
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}
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}
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// Generate API request body from model
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payload, err := toCreatePayload(&model, roles)
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if err != nil {
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core.LogAndAddError(ctx, &resp.Diagnostics, "Error creating user", fmt.Sprintf("Creating API payload: %v", err))
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return
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}
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// Create new user
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userResp, err := r.client.CreateUser(ctx, projectId, instanceId).CreateUserPayload(*payload).Execute()
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if err != nil {
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core.LogAndAddError(ctx, &resp.Diagnostics, "Error creating user", fmt.Sprintf("Calling API: %v", err))
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return
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}
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if userResp == nil || userResp.Item == nil || userResp.Item.Id == nil || *userResp.Item.Id == "" {
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core.LogAndAddError(ctx, &resp.Diagnostics, "Error creating user", "Didn't get ID of created user. A user might have been created")
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return
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}
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userId := *userResp.Item.Id
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ctx = tflog.SetField(ctx, "user_id", userId)
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// Map response body to schema and populate Computed attribute values
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err = mapFieldsCreate(userResp, &model)
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if err != nil {
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core.LogAndAddError(ctx, &resp.Diagnostics, "Error mapping fields", err.Error())
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return
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}
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// Set state to fully populated data
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diags = resp.State.Set(ctx, model)
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resp.Diagnostics.Append(diags...)
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tflog.Info(ctx, "Postgresflex user created")
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}
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// Read refreshes the Terraform state with the latest data.
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func (r *userResource) Read(ctx context.Context, req resource.ReadRequest, resp *resource.ReadResponse) { // nolint:gocritic // function signature required by Terraform
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var model Model
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diags := req.State.Get(ctx, &model)
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resp.Diagnostics.Append(diags...)
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if resp.Diagnostics.HasError() {
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return
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}
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projectId := model.ProjectId.ValueString()
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instanceId := model.InstanceId.ValueString()
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userId := model.UserId.ValueString()
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ctx = tflog.SetField(ctx, "project_id", projectId)
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ctx = tflog.SetField(ctx, "instance_id", instanceId)
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ctx = tflog.SetField(ctx, "user_id", userId)
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recordSetResp, err := r.client.GetUser(ctx, projectId, instanceId, userId).Execute()
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if err != nil {
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core.LogAndAddError(ctx, &resp.Diagnostics, "Error reading user", err.Error())
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return
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}
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// Map response body to schema and populate Computed attribute values
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err = mapFields(recordSetResp, &model)
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if err != nil {
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core.LogAndAddError(ctx, &resp.Diagnostics, "Error mapping fields", err.Error())
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return
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}
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// Set refreshed state
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diags = resp.State.Set(ctx, model)
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resp.Diagnostics.Append(diags...)
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tflog.Info(ctx, "Postgresflex user read")
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}
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// Update updates the resource and sets the updated Terraform state on success.
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func (r *userResource) Update(_ context.Context, _ resource.UpdateRequest, resp *resource.UpdateResponse) { // nolint:gocritic // function signature required by Terraform
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// Update shouldn't be called
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resp.Diagnostics.AddError("Error updating user", "user can't be updated")
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}
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// Delete deletes the resource and removes the Terraform state on success.
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func (r *userResource) Delete(ctx context.Context, req resource.DeleteRequest, resp *resource.DeleteResponse) { // nolint:gocritic // function signature required by Terraform
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// Retrieve values from plan
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var model Model
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diags := req.State.Get(ctx, &model)
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resp.Diagnostics.Append(diags...)
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if resp.Diagnostics.HasError() {
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return
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}
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projectId := model.ProjectId.ValueString()
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instanceId := model.InstanceId.ValueString()
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userId := model.UserId.ValueString()
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ctx = tflog.SetField(ctx, "project_id", projectId)
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ctx = tflog.SetField(ctx, "instance_id", instanceId)
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ctx = tflog.SetField(ctx, "user_id", userId)
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// Delete existing record set
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err := r.client.DeleteUser(ctx, projectId, instanceId, userId).Execute()
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if err != nil {
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core.LogAndAddError(ctx, &resp.Diagnostics, "Error deleting user", err.Error())
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}
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_, err = postgresflex.DeleteUserWaitHandler(ctx, r.client, projectId, instanceId, userId).SetTimeout(1 * time.Minute).WaitWithContext(ctx)
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if err != nil {
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core.LogAndAddError(ctx, &resp.Diagnostics, "Error deleting user", fmt.Sprintf("Instance deletion waiting: %v", err))
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return
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}
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tflog.Info(ctx, "Postgresflex user deleted")
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}
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// ImportState imports a resource into the Terraform state on success.
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// The expected format of the resource import identifier is: project_id,zone_id,record_set_id
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func (r *userResource) ImportState(ctx context.Context, req resource.ImportStateRequest, resp *resource.ImportStateResponse) {
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idParts := strings.Split(req.ID, core.Separator)
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if len(idParts) != 3 || idParts[0] == "" || idParts[1] == "" || idParts[2] == "" {
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core.LogAndAddError(ctx, &resp.Diagnostics,
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"Unexpected Import Identifier",
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fmt.Sprintf("Expected import identifier with format [project_id],[instance_id],[user_id], got %q", req.ID),
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)
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return
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}
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resp.Diagnostics.Append(resp.State.SetAttribute(ctx, path.Root("project_id"), idParts[0])...)
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resp.Diagnostics.Append(resp.State.SetAttribute(ctx, path.Root("instance_id"), idParts[1])...)
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resp.Diagnostics.Append(resp.State.SetAttribute(ctx, path.Root("user_id"), idParts[2])...)
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tflog.Info(ctx, "Postgresflex user state imported")
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}
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func mapFieldsCreate(userResp *postgresflex.CreateUserResponse, model *Model) error {
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if userResp == nil || userResp.Item == nil {
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return fmt.Errorf("response is nil")
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}
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if model == nil {
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return fmt.Errorf("model input is nil")
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}
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user := userResp.Item
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if user.Id == nil {
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return fmt.Errorf("user id not present")
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}
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userId := *user.Id
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idParts := []string{
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model.ProjectId.ValueString(),
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model.InstanceId.ValueString(),
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userId,
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}
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model.Id = types.StringValue(
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strings.Join(idParts, core.Separator),
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)
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model.UserId = types.StringValue(userId)
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model.Username = types.StringPointerValue(user.Username)
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if user.Password == nil {
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return fmt.Errorf("user password not present")
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}
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model.Password = types.StringValue(*user.Password)
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if user.Roles == nil {
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model.Roles = types.SetNull(types.StringType)
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} else {
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roles := []attr.Value{}
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for _, role := range *user.Roles {
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roles = append(roles, types.StringValue(role))
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}
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rolesSet, diags := types.SetValue(types.StringType, roles)
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if diags.HasError() {
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return fmt.Errorf("failed to map roles: %w", core.DiagsToError(diags))
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}
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model.Roles = rolesSet
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}
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model.Host = types.StringPointerValue(user.Host)
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model.Port = conversion.ToTypeInt64(user.Port)
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return nil
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}
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func mapFields(userResp *postgresflex.UserResponse, model *Model) error {
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if userResp == nil || userResp.Item == nil {
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return fmt.Errorf("response is nil")
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}
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if model == nil {
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return fmt.Errorf("model input is nil")
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}
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user := userResp.Item
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var userId string
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if model.UserId.ValueString() != "" {
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userId = model.UserId.ValueString()
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} else if user.Id != nil {
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userId = *user.Id
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} else {
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return fmt.Errorf("user id not present")
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}
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idParts := []string{
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model.ProjectId.ValueString(),
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model.InstanceId.ValueString(),
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userId,
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}
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model.Id = types.StringValue(
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strings.Join(idParts, core.Separator),
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)
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model.UserId = types.StringValue(userId)
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model.Username = types.StringPointerValue(user.Username)
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if user.Roles == nil {
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model.Roles = types.SetNull(types.StringType)
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} else {
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roles := []attr.Value{}
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for _, role := range *user.Roles {
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roles = append(roles, types.StringValue(role))
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}
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rolesSet, diags := types.SetValue(types.StringType, roles)
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if diags.HasError() {
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return fmt.Errorf("failed to map roles: %w", core.DiagsToError(diags))
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}
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model.Roles = rolesSet
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}
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model.Host = types.StringPointerValue(user.Host)
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model.Port = conversion.ToTypeInt64(user.Port)
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return nil
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}
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func toCreatePayload(model *Model, roles []string) (*postgresflex.CreateUserPayload, error) {
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if model == nil {
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return nil, fmt.Errorf("nil model")
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}
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if roles == nil {
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return nil, fmt.Errorf("nil roles")
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}
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return &postgresflex.CreateUserPayload{
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Roles: &roles,
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Username: model.Username.ValueStringPointer(),
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}, nil
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}
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