wire

import "github.com/coralproject/shelf/internal/wire"

• Overview
• Index
• Subdirectories

Overview

Package wire provides support for generating views.

Index

• Variables
• func AddToGraph(context interface{}, db *db.DB, store *cayley.Handle, item map[string]interface{}) error
• func RemoveFromGraph(context interface{}, db *db.DB, store *cayley.Handle, item map[string]interface{}) error
• type QuadParam
  • func (q *QuadParam) Validate() error
• type Result
  • func Execute(context interface{}, mgoDB *db.DB, graphDB *cayley.Handle, viewParams *ViewParams) (*Result, error)
• type ViewParams

Package files

relationships.go wire.go

Variables

var (

    // ErrItemType is used in item parsing.
    ErrItemType = errors.New("Could not parse item type")

    // ErrItemData is used in item parsing.
    ErrItemData = errors.New("Could not parse item data")

    // ErrItemID is used in item parsing.
    ErrItemID = errors.New("Could not parse item ID")
)

var (
    // ErrNotFound is an error variable thrown when no results are returned from a Mongo query.
    ErrNotFound = errors.New("View items Not found")
)

func AddToGraph

func AddToGraph(context interface{}, db *db.DB, store *cayley.Handle, item map[string]interface{}) error

AddToGraph adds relationships as quads into the cayley graph.

func RemoveFromGraph

func RemoveFromGraph(context interface{}, db *db.DB, store *cayley.Handle, item map[string]interface{}) error

RemoveFromGraph removes relationship quads from the cayley graph.

type QuadParam

type QuadParam struct {
    Subject   string `validate:"required,min=2"`
    Predicate string `validate:"required,min=2"`
    Object    string `validate:"required,min=2"`
}

QuadParam contains information needed to add/remove relationships to/from the cayley graph.

func (*QuadParam) Validate

func (q *QuadParam) Validate() error

Validate checks the QuadParams value for consistency.

type Result

type Result struct {
    Results interface{} `json:"results"`
}

Result represents what a user will receive after generating a view.

func Execute

func Execute(context interface{}, mgoDB *db.DB, graphDB *cayley.Handle, viewParams *ViewParams) (*Result, error)

Execute executes a graph query to generate the specified view.

type ViewParams

type ViewParams struct {
    ViewName          string `json:"view_name"`
    ItemKey           string `json:"item_key"`
    ResultsCollection string `json:"results_collection"`
    BufferLimit       int    `json:"buffer_limit"`
}

ViewParams represents how the View will be generated and persisted.

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