commands/models.go - cordctl - Gitiles

 /*
  * Portions copyright 2019-present Open Networking Foundation
  * Original copyright 2019-present Ciena Corporation
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
  *
  * http://www.apache.org/licenses/LICENSE-2.0
  *
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
 package commands

 import (
 	"fmt"
 	flags "github.com/jessevdk/go-flags"
 	"github.com/jhump/protoreflect/dynamic"
 	"strings"
 )

 const (
 	DEFAULT_CREATE_FORMAT = "table{{ .Id }}\t{{ .Message }}"
 	DEFAULT_DELETE_FORMAT = "table{{ .Id }}\t{{ .Message }}"
 	DEFAULT_UPDATE_FORMAT = "table{{ .Id }}\t{{ .Message }}"
 	DEFAULT_SYNC_FORMAT   = "table{{ .Id }}\t{{ .Message }}"
 )

 type ModelNameString string

 type ModelList struct {
 	OutputOptions
 	ShowHidden      bool   `long:"showhidden" description:"Show hidden fields in default output"`
 	ShowFeedback    bool   `long:"showfeedback" description:"Show feedback fields in default output"`
 	ShowBookkeeping bool   `long:"showbookkeeping" description:"Show bookkeeping fields in default output"`
 	Filter          string `short:"f" long:"filter" description:"Comma-separated list of filters"`
 	Args            struct {
 		ModelName ModelNameString
 	} `positional-args:"yes" required:"yes"`
 }

 type ModelUpdate struct {
 	OutputOptions
 	Unbuffered bool   `short:"u" long:"unbuffered" description:"Do not buffer console output and suppress default output processor"`
 	Filter     string `short:"f" long:"filter" description:"Comma-separated list of filters"`
 	SetFields  string `long:"set-field" description:"Comma-separated list of field=value to set"`
 	SetJSON    string `long:"set-json" description:"JSON dictionary to use for settings fields"`
 	Sync       bool   `long:"sync" description:"Synchronize before returning"`
 	Args       struct {
 		ModelName ModelNameString
 	} `positional-args:"yes" required:"yes"`
 	IDArgs struct {
 		ID []int32
 	} `positional-args:"yes" required:"no"`
 }

 type ModelDelete struct {
 	OutputOptions
 	Unbuffered bool   `short:"u" long:"unbuffered" description:"Do not buffer console output and suppress default output processor"`
 	Filter     string `short:"f" long:"filter" description:"Comma-separated list of filters"`
 	Args       struct {
 		ModelName ModelNameString
 	} `positional-args:"yes" required:"yes"`
 	IDArgs struct {
 		ID []int32
 	} `positional-args:"yes" required:"no"`
 }

 type ModelCreate struct {
 	OutputOptions
 	Unbuffered bool   `short:"u" long:"unbuffered" description:"Do not buffer console output"`
 	SetFields  string `long:"set-field" description:"Comma-separated list of field=value to set"`
 	SetJSON    string `long:"set-json" description:"JSON dictionary to use for settings fields"`
 	Sync       bool   `long:"sync" description:"Synchronize before returning"`
 	Args       struct {
 		ModelName ModelNameString
 	} `positional-args:"yes" required:"yes"`
 }

 type ModelSync struct {
 	OutputOptions
 	Unbuffered bool   `short:"u" long:"unbuffered" description:"Do not buffer console output and suppress default output processor"`
 	Filter     string `short:"f" long:"filter" description:"Comma-separated list of filters"`
 	Args       struct {
 		ModelName ModelNameString
 	} `positional-args:"yes" required:"yes"`
 	IDArgs struct {
 		ID []int32
 	} `positional-args:"yes" required:"no"`
 }

 type ModelOpts struct {
 	List   ModelList   `command:"list"`
 	Update ModelUpdate `command:"update"`
 	Delete ModelDelete `command:"delete"`
 	Create ModelCreate `command:"create"`
 	Sync   ModelSync   `command:"sync"`
 }

 type ModelStatusOutputRow struct {
 	Id      interface{} `json:"id"`
 	Message string      `json:"message"`
 }

 type ModelStatusOutput struct {
 	Rows       []ModelStatusOutputRow
 	Unbuffered bool
 }

 var modelOpts = ModelOpts{}

 func RegisterModelCommands(parser *flags.Parser) {
 	parser.AddCommand("model", "model commands", "Commands to query and manipulate XOS models", &modelOpts)
 }

 // Initialize ModelStatusOutput structure, creating a row for each model that will be output
 func InitModelStatusOutput(unbuffered bool, count int) ModelStatusOutput {
 	return ModelStatusOutput{Rows: make([]ModelStatusOutputRow, count), Unbuffered: unbuffered}
 }

 // Update model status output row for the model
 //    If unbuffered is set then we will output directly to the console. Regardless of the unbuffered
 //    setting, we always update the row, as callers may check that row for status.
 // Args:
 //    output - ModelStatusOutput struct to update
 //    i - index of row to update
 //    id - id of model, <nil> if no model exists
 //    status - status text to set if there is no error
 //    errror - if non-nil, then apply error text instead of status text
 //    final - true if successful status should be reported, false if successful status is yet to come

 func UpdateModelStatusOutput(output *ModelStatusOutput, i int, id interface{}, status string, err error, final bool) {
 	if err != nil {
 		if output.Unbuffered {
 			fmt.Printf("%v: %s\n", id, HumanReadableError(err))
 		}
 		output.Rows[i] = ModelStatusOutputRow{Id: id, Message: HumanReadableError(err)}
 	} else {
 		if output.Unbuffered && final {
 			fmt.Println(id)
 		}
 		output.Rows[i] = ModelStatusOutputRow{Id: id, Message: status}
 	}
 }

 func (options *ModelList) Execute(args []string) error {
 	conn, descriptor, err := InitReflectionClient()
 	if err != nil {
 		return err
 	}

 	defer conn.Close()

 	err = CheckModelName(descriptor, string(options.Args.ModelName))
 	if err != nil {
 		return err
 	}

 	queries, err := CommaSeparatedQueryToMap(options.Filter, true)
 	if err != nil {
 		return err
 	}

 	models, err := ListOrFilterModels(conn, descriptor, string(options.Args.ModelName), queries)
 	if err != nil {
 		return err
 	}

 	field_names := make(map[string]bool)
 	data := make([]map[string]interface{}, len(models))
 	for i, val := range models {
 		data[i] = make(map[string]interface{})
 		for _, field_desc := range val.GetKnownFields() {
 			field_name := field_desc.GetName()

 			isGuiHidden := strings.Contains(field_desc.GetFieldOptions().String(), "1005:1")
 			isFeedback := strings.Contains(field_desc.GetFieldOptions().String(), "1006:1")
 			isBookkeeping := strings.Contains(field_desc.GetFieldOptions().String(), "1007:1")

 			if isGuiHidden && (!options.ShowHidden) {
 				continue
 			}

 			if isFeedback && (!options.ShowFeedback) {
 				continue
 			}

 			if isBookkeeping && (!options.ShowBookkeeping) {
 				continue
 			}

 			if field_desc.IsRepeated() {
 				continue
 			}

 			data[i][field_name] = val.GetFieldByName(field_name)

 			field_names[field_name] = true
 		}
 	}

 	var default_format strings.Builder
 	default_format.WriteString("table")
 	first := true
 	for field_name, _ := range field_names {
 		if first {
 			fmt.Fprintf(&default_format, "{{ .%s }}", field_name)
 			first = false
 		} else {
 			fmt.Fprintf(&default_format, "\t{{ .%s }}", field_name)
 		}
 	}

 	FormatAndGenerateOutput(&options.OutputOptions, default_format.String(), "{{.id}}", data)

 	return nil
 }

 func (options *ModelUpdate) Execute(args []string) error {
 	conn, descriptor, err := InitReflectionClient()
 	if err != nil {
 		return err
 	}

 	defer conn.Close()

 	err = CheckModelName(descriptor, string(options.Args.ModelName))
 	if err != nil {
 		return err
 	}

 	if (len(options.IDArgs.ID) == 0 && len(options.Filter) == 0) ||
 		(len(options.IDArgs.ID) != 0 && len(options.Filter) != 0) {
 		return fmt.Errorf("Use either an ID or a --filter to specify which models to update")
 	}

 	queries, err := CommaSeparatedQueryToMap(options.Filter, true)
 	if err != nil {
 		return err
 	}

 	updates, err := CommaSeparatedQueryToMap(options.SetFields, true)
 	if err != nil {
 		return err
 	}

 	modelName := string(options.Args.ModelName)

 	var models []*dynamic.Message

 	if len(options.IDArgs.ID) > 0 {
 		models = make([]*dynamic.Message, len(options.IDArgs.ID))
 		for i, id := range options.IDArgs.ID {
 			models[i], err = GetModel(conn, descriptor, modelName, id)
 			if err != nil {
 				return err
 			}
 		}
 	} else {
 		models, err = ListOrFilterModels(conn, descriptor, modelName, queries)
 		if err != nil {
 			return err
 		}
 	}

 	if len(models) == 0 {
 		return fmt.Errorf("Filter matches no objects")
 	} else if len(models) > 1 {
 		if !Confirmf("Filter matches %d objects. Continue [y/n] ? ", len(models)) {
 			return fmt.Errorf("Aborted by user")
 		}
 	}

 	fields := make(map[string]interface{})

 	if len(options.SetJSON) > 0 {
 		fields["_json"] = []byte(options.SetJSON)
 	}

 	for fieldName, value := range updates {
 		value = value[1:]
 		proto_value, err := TypeConvert(descriptor, modelName, fieldName, value)
 		if err != nil {
 			return err
 		}
 		fields[fieldName] = proto_value
 	}

 	modelStatusOutput := InitModelStatusOutput(options.Unbuffered, len(models))
 	for i, model := range models {
 		id := model.GetFieldByName("id").(int32)
 		fields["id"] = id
 		err := UpdateModel(conn, descriptor, modelName, fields)

 		UpdateModelStatusOutput(&modelStatusOutput, i, id, "Updated", err, !options.Sync)
 	}

 	if options.Sync {
 		for i, model := range models {
 			id := model.GetFieldByName("id").(int32)
 			if modelStatusOutput.Rows[i].Message == "Updated" {
 				conditional_printf(!options.Quiet, "Wait for sync: %d ", id)
 				conn, _, err = GetModelWithRetry(conn, descriptor, modelName, id, GM_UNTIL_ENACTED|Ternary_uint32(options.Quiet, GM_QUIET, 0))
 				conditional_printf(!options.Quiet, "\n")
 				UpdateModelStatusOutput(&modelStatusOutput, i, id, "Enacted", err, true)
 			}
 		}
 	}

 	if !options.Unbuffered {
 		FormatAndGenerateOutput(&options.OutputOptions, DEFAULT_UPDATE_FORMAT, DEFAULT_UPDATE_FORMAT, modelStatusOutput.Rows)
 	}

 	return nil
 }

 func (options *ModelDelete) Execute(args []string) error {
 	conn, descriptor, err := InitReflectionClient()
 	if err != nil {
 		return err
 	}

 	defer conn.Close()

 	err = CheckModelName(descriptor, string(options.Args.ModelName))
 	if err != nil {
 		return err
 	}

 	if (len(options.IDArgs.ID) == 0 && len(options.Filter) == 0) ||
 		(len(options.IDArgs.ID) != 0 && len(options.Filter) != 0) {
 		return fmt.Errorf("Use either an ID or a --filter to specify which models to delete")
 	}

 	queries, err := CommaSeparatedQueryToMap(options.Filter, true)
 	if err != nil {
 		return err
 	}

 	modelName := string(options.Args.ModelName)

 	var ids []int32

 	if len(options.IDArgs.ID) > 0 {
 		ids = options.IDArgs.ID
 	} else {
 		models, err := ListOrFilterModels(conn, descriptor, modelName, queries)
 		if err != nil {
 			return err
 		}
 		ids = make([]int32, len(models))
 		for i, model := range models {
 			ids[i] = model.GetFieldByName("id").(int32)
 		}
 		if len(ids) == 0 {
 			return fmt.Errorf("Filter matches no objects")
 		} else if len(ids) > 1 {
 			if !Confirmf("Filter matches %d objects. Continue [y/n] ? ", len(models)) {
 				return fmt.Errorf("Aborted by user")
 			}
 		}
 	}

 	modelStatusOutput := InitModelStatusOutput(options.Unbuffered, len(ids))
 	for i, id := range ids {
 		err = DeleteModel(conn, descriptor, modelName, id)
 		UpdateModelStatusOutput(&modelStatusOutput, i, id, "Deleted", err, true)
 	}

 	if !options.Unbuffered {
 		FormatAndGenerateOutput(&options.OutputOptions, DEFAULT_DELETE_FORMAT, DEFAULT_DELETE_FORMAT, modelStatusOutput.Rows)
 	}

 	return nil
 }

 func (options *ModelCreate) Execute(args []string) error {
 	conn, descriptor, err := InitReflectionClient()
 	if err != nil {
 		return err
 	}

 	defer conn.Close()

 	err = CheckModelName(descriptor, string(options.Args.ModelName))
 	if err != nil {
 		return err
 	}

 	updates, err := CommaSeparatedQueryToMap(options.SetFields, true)
 	if err != nil {
 		return err
 	}

 	modelName := string(options.Args.ModelName)

 	fields := make(map[string]interface{})

 	if len(options.SetJSON) > 0 {
 		fields["_json"] = []byte(options.SetJSON)
 	}

 	for fieldName, value := range updates {
 		value = value[1:]
 		proto_value, err := TypeConvert(descriptor, modelName, fieldName, value)
 		if err != nil {
 			return err
 		}
 		fields[fieldName] = proto_value
 	}

 	modelStatusOutput := InitModelStatusOutput(options.Unbuffered, 1)

 	err = CreateModel(conn, descriptor, modelName, fields)
 	UpdateModelStatusOutput(&modelStatusOutput, 0, fields["id"], "Created", err, !options.Sync)

 	if options.Sync {
 		if modelStatusOutput.Rows[0].Message == "Created" {
 			id := fields["id"].(int32)
 			conditional_printf(!options.Quiet, "Wait for sync: %d ", id)
 			conn, _, err = GetModelWithRetry(conn, descriptor, modelName, id, GM_UNTIL_ENACTED|Ternary_uint32(options.Quiet, GM_QUIET, 0))
 			conditional_printf(!options.Quiet, "\n")
 			UpdateModelStatusOutput(&modelStatusOutput, 0, id, "Enacted", err, true)
 		}
 	}

 	if !options.Unbuffered {
 		FormatAndGenerateOutput(&options.OutputOptions, DEFAULT_CREATE_FORMAT, DEFAULT_CREATE_FORMAT, modelStatusOutput.Rows)
 	}

 	return nil
 }

 func (options *ModelSync) Execute(args []string) error {
 	conn, descriptor, err := InitReflectionClient()
 	if err != nil {
 		return err
 	}

 	defer conn.Close()

 	err = CheckModelName(descriptor, string(options.Args.ModelName))
 	if err != nil {
 		return err
 	}

 	if (len(options.IDArgs.ID) == 0 && len(options.Filter) == 0) ||
 		(len(options.IDArgs.ID) != 0 && len(options.Filter) != 0) {
 		return fmt.Errorf("Use either an ID or a --filter to specify which models to sync")
 	}

 	queries, err := CommaSeparatedQueryToMap(options.Filter, true)
 	if err != nil {
 		return err
 	}

 	modelName := string(options.Args.ModelName)

 	var ids []int32

 	if len(options.IDArgs.ID) > 0 {
 		ids = options.IDArgs.ID
 	} else {
 		models, err := ListOrFilterModels(conn, descriptor, modelName, queries)
 		if err != nil {
 			return err
 		}
 		ids = make([]int32, len(models))
 		for i, model := range models {
 			ids[i] = model.GetFieldByName("id").(int32)
 		}
 		if len(ids) == 0 {
 			return fmt.Errorf("Filter matches no objects")
 		} else if len(ids) > 1 {
 			if !Confirmf("Filter matches %d objects. Continue [y/n] ? ", len(models)) {
 				return fmt.Errorf("Aborted by user")
 			}
 		}
 	}

 	modelStatusOutput := InitModelStatusOutput(options.Unbuffered, len(ids))
 	for i, id := range ids {
 		conditional_printf(!options.Quiet, "Wait for sync: %d ", id)
 		conn, _, err = GetModelWithRetry(conn, descriptor, modelName, id, GM_UNTIL_ENACTED|Ternary_uint32(options.Quiet, GM_QUIET, 0))
 		conditional_printf(!options.Quiet, "\n")
 		UpdateModelStatusOutput(&modelStatusOutput, i, id, "Enacted", err, true)
 	}

 	if !options.Unbuffered {
 		FormatAndGenerateOutput(&options.OutputOptions, DEFAULT_SYNC_FORMAT, DEFAULT_SYNC_FORMAT, modelStatusOutput.Rows)
 	}

 	return nil
 }

 func (modelName *ModelNameString) Complete(match string) []flags.Completion {
 	conn, descriptor, err := InitReflectionClient()
 	if err != nil {
 		return nil
 	}

 	defer conn.Close()

 	models, err := GetModelNames(descriptor)
 	if err != nil {
 		return nil
 	}

 	list := make([]flags.Completion, 0)
 	for k := range models {
 		if strings.HasPrefix(k, match) {
 			list = append(list, flags.Completion{Item: k})
 		}
 	}

 	return list
 }
	/*
	* Portions copyright 2019-present Open Networking Foundation
	* Original copyright 2019-present Ciena Corporation
	*
	* Licensed under the Apache License, Version 2.0 (the "License");
	* you may not use this file except in compliance with the License.
	* You may obtain a copy of the License at
	*
	* http://www.apache.org/licenses/LICENSE-2.0
	*
	* Unless required by applicable law or agreed to in writing, software
	* distributed under the License is distributed on an "AS IS" BASIS,
	* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
	* See the License for the specific language governing permissions and
	* limitations under the License.
	*/
	package commands

	import (
	"fmt"
	flags "github.com/jessevdk/go-flags"
	"github.com/jhump/protoreflect/dynamic"
	"strings"
	)

	const (
	DEFAULT_CREATE_FORMAT = "table{{ .Id }}\t{{ .Message }}"
	DEFAULT_DELETE_FORMAT = "table{{ .Id }}\t{{ .Message }}"
	DEFAULT_UPDATE_FORMAT = "table{{ .Id }}\t{{ .Message }}"
	DEFAULT_SYNC_FORMAT = "table{{ .Id }}\t{{ .Message }}"
	)

	type ModelNameString string

	type ModelList struct {
	OutputOptions
	ShowHidden bool `long:"showhidden" description:"Show hidden fields in default output"`
	ShowFeedback bool `long:"showfeedback" description:"Show feedback fields in default output"`
	ShowBookkeeping bool `long:"showbookkeeping" description:"Show bookkeeping fields in default output"`
	Filter string `short:"f" long:"filter" description:"Comma-separated list of filters"`
	Args struct {
	ModelName ModelNameString
	} `positional-args:"yes" required:"yes"`
	}

	type ModelUpdate struct {
	OutputOptions
	Unbuffered bool `short:"u" long:"unbuffered" description:"Do not buffer console output and suppress default output processor"`
	Filter string `short:"f" long:"filter" description:"Comma-separated list of filters"`
	SetFields string `long:"set-field" description:"Comma-separated list of field=value to set"`
	SetJSON string `long:"set-json" description:"JSON dictionary to use for settings fields"`
	Sync bool `long:"sync" description:"Synchronize before returning"`
	Args struct {
	ModelName ModelNameString
	} `positional-args:"yes" required:"yes"`
	IDArgs struct {
	ID []int32
	} `positional-args:"yes" required:"no"`
	}

	type ModelDelete struct {
	OutputOptions
	Unbuffered bool `short:"u" long:"unbuffered" description:"Do not buffer console output and suppress default output processor"`
	Filter string `short:"f" long:"filter" description:"Comma-separated list of filters"`
	Args struct {
	ModelName ModelNameString
	} `positional-args:"yes" required:"yes"`
	IDArgs struct {
	ID []int32
	} `positional-args:"yes" required:"no"`
	}

	type ModelCreate struct {
	OutputOptions
	Unbuffered bool `short:"u" long:"unbuffered" description:"Do not buffer console output"`
	SetFields string `long:"set-field" description:"Comma-separated list of field=value to set"`
	SetJSON string `long:"set-json" description:"JSON dictionary to use for settings fields"`
	Sync bool `long:"sync" description:"Synchronize before returning"`
	Args struct {
	ModelName ModelNameString
	} `positional-args:"yes" required:"yes"`
	}

	type ModelSync struct {
	OutputOptions
	Unbuffered bool `short:"u" long:"unbuffered" description:"Do not buffer console output and suppress default output processor"`
	Filter string `short:"f" long:"filter" description:"Comma-separated list of filters"`
	Args struct {
	ModelName ModelNameString
	} `positional-args:"yes" required:"yes"`
	IDArgs struct {
	ID []int32
	} `positional-args:"yes" required:"no"`
	}

	type ModelOpts struct {
	List ModelList `command:"list"`
	Update ModelUpdate `command:"update"`
	Delete ModelDelete `command:"delete"`
	Create ModelCreate `command:"create"`
	Sync ModelSync `command:"sync"`
	}

	type ModelStatusOutputRow struct {
	Id interface{} `json:"id"`
	Message string `json:"message"`
	}

	type ModelStatusOutput struct {
	Rows []ModelStatusOutputRow
	Unbuffered bool
	}

	var modelOpts = ModelOpts{}

	func RegisterModelCommands(parser *flags.Parser) {
	parser.AddCommand("model", "model commands", "Commands to query and manipulate XOS models", &modelOpts)
	}

	// Initialize ModelStatusOutput structure, creating a row for each model that will be output
	func InitModelStatusOutput(unbuffered bool, count int) ModelStatusOutput {
	return ModelStatusOutput{Rows: make([]ModelStatusOutputRow, count), Unbuffered: unbuffered}
	}

	// Update model status output row for the model
	// If unbuffered is set then we will output directly to the console. Regardless of the unbuffered
	// setting, we always update the row, as callers may check that row for status.
	// Args:
	// output - ModelStatusOutput struct to update
	// i - index of row to update
	// id - id of model, <nil> if no model exists
	// status - status text to set if there is no error
	// errror - if non-nil, then apply error text instead of status text
	// final - true if successful status should be reported, false if successful status is yet to come

	func UpdateModelStatusOutput(output *ModelStatusOutput, i int, id interface{}, status string, err error, final bool) {
	if err != nil {
	if output.Unbuffered {
	fmt.Printf("%v: %s\n", id, HumanReadableError(err))
	}
	output.Rows[i] = ModelStatusOutputRow{Id: id, Message: HumanReadableError(err)}
	} else {
	if output.Unbuffered && final {
	fmt.Println(id)
	}
	output.Rows[i] = ModelStatusOutputRow{Id: id, Message: status}
	}
	}

	func (options *ModelList) Execute(args []string) error {
	conn, descriptor, err := InitReflectionClient()
	if err != nil {
	return err
	}

	defer conn.Close()

	err = CheckModelName(descriptor, string(options.Args.ModelName))
	if err != nil {
	return err
	}

	queries, err := CommaSeparatedQueryToMap(options.Filter, true)
	if err != nil {
	return err
	}

	models, err := ListOrFilterModels(conn, descriptor, string(options.Args.ModelName), queries)
	if err != nil {
	return err
	}

	field_names := make(map[string]bool)
	data := make([]map[string]interface{}, len(models))
	for i, val := range models {
	data[i] = make(map[string]interface{})
	for _, field_desc := range val.GetKnownFields() {
	field_name := field_desc.GetName()

	isGuiHidden := strings.Contains(field_desc.GetFieldOptions().String(), "1005:1")
	isFeedback := strings.Contains(field_desc.GetFieldOptions().String(), "1006:1")
	isBookkeeping := strings.Contains(field_desc.GetFieldOptions().String(), "1007:1")

	if isGuiHidden && (!options.ShowHidden) {
	continue
	}

	if isFeedback && (!options.ShowFeedback) {
	continue
	}

	if isBookkeeping && (!options.ShowBookkeeping) {
	continue
	}

	if field_desc.IsRepeated() {
	continue
	}

	data[i][field_name] = val.GetFieldByName(field_name)

	field_names[field_name] = true
	}
	}

	var default_format strings.Builder
	default_format.WriteString("table")
	first := true
	for field_name, _ := range field_names {
	if first {
	fmt.Fprintf(&default_format, "{{ .%s }}", field_name)
	first = false
	} else {
	fmt.Fprintf(&default_format, "\t{{ .%s }}", field_name)
	}
	}

	FormatAndGenerateOutput(&options.OutputOptions, default_format.String(), "{{.id}}", data)

	return nil
	}

	func (options *ModelUpdate) Execute(args []string) error {
	conn, descriptor, err := InitReflectionClient()
	if err != nil {
	return err
	}

	defer conn.Close()

	err = CheckModelName(descriptor, string(options.Args.ModelName))
	if err != nil {
	return err
	}

	if (len(options.IDArgs.ID) == 0 && len(options.Filter) == 0) \|\|
	(len(options.IDArgs.ID) != 0 && len(options.Filter) != 0) {
	return fmt.Errorf("Use either an ID or a --filter to specify which models to update")
	}

	queries, err := CommaSeparatedQueryToMap(options.Filter, true)
	if err != nil {
	return err
	}

	updates, err := CommaSeparatedQueryToMap(options.SetFields, true)
	if err != nil {
	return err
	}

	modelName := string(options.Args.ModelName)

	var models []*dynamic.Message

	if len(options.IDArgs.ID) > 0 {
	models = make([]*dynamic.Message, len(options.IDArgs.ID))
	for i, id := range options.IDArgs.ID {
	models[i], err = GetModel(conn, descriptor, modelName, id)
	if err != nil {
	return err
	}
	}
	} else {
	models, err = ListOrFilterModels(conn, descriptor, modelName, queries)
	if err != nil {
	return err
	}
	}

	if len(models) == 0 {
	return fmt.Errorf("Filter matches no objects")
	} else if len(models) > 1 {
	if !Confirmf("Filter matches %d objects. Continue [y/n] ? ", len(models)) {
	return fmt.Errorf("Aborted by user")
	}
	}

	fields := make(map[string]interface{})

	if len(options.SetJSON) > 0 {
	fields["_json"] = []byte(options.SetJSON)
	}

	for fieldName, value := range updates {
	value = value[1:]
	proto_value, err := TypeConvert(descriptor, modelName, fieldName, value)
	if err != nil {
	return err
	}
	fields[fieldName] = proto_value
	}

	modelStatusOutput := InitModelStatusOutput(options.Unbuffered, len(models))
	for i, model := range models {
	id := model.GetFieldByName("id").(int32)
	fields["id"] = id
	err := UpdateModel(conn, descriptor, modelName, fields)

	UpdateModelStatusOutput(&modelStatusOutput, i, id, "Updated", err, !options.Sync)
	}

	if options.Sync {
	for i, model := range models {
	id := model.GetFieldByName("id").(int32)
	if modelStatusOutput.Rows[i].Message == "Updated" {
	conditional_printf(!options.Quiet, "Wait for sync: %d ", id)
	conn, _, err = GetModelWithRetry(conn, descriptor, modelName, id, GM_UNTIL_ENACTED\|Ternary_uint32(options.Quiet, GM_QUIET, 0))
	conditional_printf(!options.Quiet, "\n")
	UpdateModelStatusOutput(&modelStatusOutput, i, id, "Enacted", err, true)
	}
	}
	}

	if !options.Unbuffered {
	FormatAndGenerateOutput(&options.OutputOptions, DEFAULT_UPDATE_FORMAT, DEFAULT_UPDATE_FORMAT, modelStatusOutput.Rows)
	}

	return nil
	}

	func (options *ModelDelete) Execute(args []string) error {
	conn, descriptor, err := InitReflectionClient()
	if err != nil {
	return err
	}

	defer conn.Close()

	err = CheckModelName(descriptor, string(options.Args.ModelName))
	if err != nil {
	return err
	}

	if (len(options.IDArgs.ID) == 0 && len(options.Filter) == 0) \|\|
	(len(options.IDArgs.ID) != 0 && len(options.Filter) != 0) {
	return fmt.Errorf("Use either an ID or a --filter to specify which models to delete")
	}

	queries, err := CommaSeparatedQueryToMap(options.Filter, true)
	if err != nil {
	return err
	}

	modelName := string(options.Args.ModelName)

	var ids []int32

	if len(options.IDArgs.ID) > 0 {
	ids = options.IDArgs.ID
	} else {
	models, err := ListOrFilterModels(conn, descriptor, modelName, queries)
	if err != nil {
	return err
	}
	ids = make([]int32, len(models))
	for i, model := range models {
	ids[i] = model.GetFieldByName("id").(int32)
	}
	if len(ids) == 0 {
	return fmt.Errorf("Filter matches no objects")
	} else if len(ids) > 1 {
	if !Confirmf("Filter matches %d objects. Continue [y/n] ? ", len(models)) {
	return fmt.Errorf("Aborted by user")
	}
	}
	}

	modelStatusOutput := InitModelStatusOutput(options.Unbuffered, len(ids))
	for i, id := range ids {
	err = DeleteModel(conn, descriptor, modelName, id)
	UpdateModelStatusOutput(&modelStatusOutput, i, id, "Deleted", err, true)
	}

	if !options.Unbuffered {
	FormatAndGenerateOutput(&options.OutputOptions, DEFAULT_DELETE_FORMAT, DEFAULT_DELETE_FORMAT, modelStatusOutput.Rows)
	}

	return nil
	}

	func (options *ModelCreate) Execute(args []string) error {
	conn, descriptor, err := InitReflectionClient()
	if err != nil {
	return err
	}

	defer conn.Close()

	err = CheckModelName(descriptor, string(options.Args.ModelName))
	if err != nil {
	return err
	}

	updates, err := CommaSeparatedQueryToMap(options.SetFields, true)
	if err != nil {
	return err
	}

	modelName := string(options.Args.ModelName)

	fields := make(map[string]interface{})

	if len(options.SetJSON) > 0 {
	fields["_json"] = []byte(options.SetJSON)
	}

	for fieldName, value := range updates {
	value = value[1:]
	proto_value, err := TypeConvert(descriptor, modelName, fieldName, value)
	if err != nil {
	return err
	}
	fields[fieldName] = proto_value
	}

	modelStatusOutput := InitModelStatusOutput(options.Unbuffered, 1)

	err = CreateModel(conn, descriptor, modelName, fields)
	UpdateModelStatusOutput(&modelStatusOutput, 0, fields["id"], "Created", err, !options.Sync)

	if options.Sync {
	if modelStatusOutput.Rows[0].Message == "Created" {
	id := fields["id"].(int32)
	conditional_printf(!options.Quiet, "Wait for sync: %d ", id)
	conn, _, err = GetModelWithRetry(conn, descriptor, modelName, id, GM_UNTIL_ENACTED\|Ternary_uint32(options.Quiet, GM_QUIET, 0))
	conditional_printf(!options.Quiet, "\n")
	UpdateModelStatusOutput(&modelStatusOutput, 0, id, "Enacted", err, true)
	}
	}

	if !options.Unbuffered {
	FormatAndGenerateOutput(&options.OutputOptions, DEFAULT_CREATE_FORMAT, DEFAULT_CREATE_FORMAT, modelStatusOutput.Rows)
	}

	return nil
	}

	func (options *ModelSync) Execute(args []string) error {
	conn, descriptor, err := InitReflectionClient()
	if err != nil {
	return err
	}

	defer conn.Close()

	err = CheckModelName(descriptor, string(options.Args.ModelName))
	if err != nil {
	return err
	}

	if (len(options.IDArgs.ID) == 0 && len(options.Filter) == 0) \|\|
	(len(options.IDArgs.ID) != 0 && len(options.Filter) != 0) {
	return fmt.Errorf("Use either an ID or a --filter to specify which models to sync")
	}

	queries, err := CommaSeparatedQueryToMap(options.Filter, true)
	if err != nil {
	return err
	}

	modelName := string(options.Args.ModelName)

	var ids []int32

	if len(options.IDArgs.ID) > 0 {
	ids = options.IDArgs.ID
	} else {
	models, err := ListOrFilterModels(conn, descriptor, modelName, queries)
	if err != nil {
	return err
	}
	ids = make([]int32, len(models))
	for i, model := range models {
	ids[i] = model.GetFieldByName("id").(int32)
	}
	if len(ids) == 0 {
	return fmt.Errorf("Filter matches no objects")
	} else if len(ids) > 1 {
	if !Confirmf("Filter matches %d objects. Continue [y/n] ? ", len(models)) {
	return fmt.Errorf("Aborted by user")
	}
	}
	}

	modelStatusOutput := InitModelStatusOutput(options.Unbuffered, len(ids))
	for i, id := range ids {
	conditional_printf(!options.Quiet, "Wait for sync: %d ", id)
	conn, _, err = GetModelWithRetry(conn, descriptor, modelName, id, GM_UNTIL_ENACTED\|Ternary_uint32(options.Quiet, GM_QUIET, 0))
	conditional_printf(!options.Quiet, "\n")
	UpdateModelStatusOutput(&modelStatusOutput, i, id, "Enacted", err, true)
	}

	if !options.Unbuffered {
	FormatAndGenerateOutput(&options.OutputOptions, DEFAULT_SYNC_FORMAT, DEFAULT_SYNC_FORMAT, modelStatusOutput.Rows)
	}

	return nil
	}

	func (modelName *ModelNameString) Complete(match string) []flags.Completion {
	conn, descriptor, err := InitReflectionClient()
	if err != nil {
	return nil
	}

	defer conn.Close()

	models, err := GetModelNames(descriptor)
	if err != nil {
	return nil
	}

	list := make([]flags.Completion, 0)
	for k := range models {
	if strings.HasPrefix(k, match) {
	list = append(list, flags.Completion{Item: k})
	}
	}

	return list
	}