schema

package
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 Go to latest Published: Sep 11, 2018 License: BSD-2-Clause Imports: 8 Imported by: 3

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Index

Constants

View Source 
const (
	SqliteIndex = iota
	MysqlIndex
	PostgresIndex
)

Variables

View Source 
var AllDialects = []Dialect{Sqlite, Mysql, Postgres}

AllDialects lists all currently-supported dialects.

Functions

This section is empty.

Types

type Dialect 

type Dialect interface {
	Index() int
	String() string
	Alias() string

	TableDDL(*TableDescription) string
	FieldDDL(w io.Writer, field *Field, comma string) string
	TruncateDDL(tableName string, force bool) []string
	CreateTableSettings() string
	FieldAsColumn(*Field) string
	InsertHasReturningPhrase() bool

	SplitAndQuote(csv string) string
	Quote(string) string
	QuoteW(w io.Writer, identifier string)
	QuoteWithPlaceholder(w io.Writer, identifier string, j int)
	ReplacePlaceholders(sql string, args []interface{}) string
	Placeholder(name string, j int) string
	Placeholders(n int) string
}
var Mysql Dialect = mysql{}
var Postgres Dialect = postgres{}
var Sqlite Dialect = sqlite{}

func PickDialect 

func PickDialect(name string) Dialect

PickDialect finds a dialect that matches by name, ignoring letter case. It returns nil if not found.

type Field 

type Field struct {
	Node
	SqlName string
	Encode  SqlEncode
	Tags    Tag
}

func (*Field) IsExported 

func (f *Field) IsExported() bool

type FieldList 

type FieldList []*Field

func (FieldList) DistinctTypes 

func (list FieldList) DistinctTypes() []Type

func (FieldList) FilterNot 

func (list FieldList) FilterNot(predicate func(*Field) bool) FieldList

func (FieldList) FormalParams 

func (list FieldList) FormalParams() Identifiers

func (FieldList) Names 

func (list FieldList) Names() Identifiers

func (FieldList) NoSkipOrPrimary 

func (list FieldList) NoSkipOrPrimary() FieldList

func (FieldList) NoSkips 

func (list FieldList) NoSkips() FieldList

func (FieldList) NonAuto 

func (list FieldList) NonAuto() FieldList

func (FieldList) Pointers 

func (list FieldList) Pointers() FieldList

func (FieldList) SqlNames 

func (list FieldList) SqlNames() Identifiers

func (FieldList) WhereClauses 

func (list FieldList) WhereClauses() Identifiers

type Identifiers 

type Identifiers []string

func (Identifiers) MkString 

func (ids Identifiers) MkString(sep string) string

func (Identifiers) MkString3 

func (ids Identifiers) MkString3(before, separator, after string) string

func (Identifiers) MkString3W 

func (ids Identifiers) MkString3W(w io.Writer, before, separator, after string)

func (Identifiers) Quoted 

func (ids Identifiers) Quoted(w io.Writer, quoter func(string) string)

type Index 

type Index struct {
	Name   string
	Unique bool

	Fields FieldList
}

func (*Index) Columns 

func (i *Index) Columns() string

func (*Index) JoinedNames 

func (i *Index) JoinedNames(sep string) string

func (*Index) Single 

func (i *Index) Single() bool

func (*Index) UniqueStr 

func (i *Index) UniqueStr() string

type Node 

type Node struct {
	Name   string
	Type   Type
	Parent *Node
}

func (*Node) JoinParts 

func (node *Node) JoinParts(delta int, sep string) string

func (*Node) Parts 

func (node *Node) Parts() []string

Parts gets the node containment chain as a sequence of names of parts.

type SqlEncode 

type SqlEncode int
const (
	ENCNONE SqlEncode = iota
	ENCJSON
	ENCTEXT
	ENCDRIVER // SQL driver uses Scan() & Value() to encode & decode
)

List of vendor-specific keywords

type SqlToken 

type SqlToken int
const (
	AUTO_INCREMENT SqlToken = iota
	PRIMARY_KEY
)

List of vendor-specific keywords

type TableDescription 

type TableDescription struct {
	Type string
	Name string

	Fields  FieldList
	Index   []*Index
	Primary *Field // compound primaries are not supported
}

func (*TableDescription) ColumnNames 

func (table *TableDescription) ColumnNames(withAuto bool) Identifiers

func (*TableDescription) HasLastInsertId 

func (t *TableDescription) HasLastInsertId() bool

func (*TableDescription) HasPrimaryKey 

func (t *TableDescription) HasPrimaryKey() bool

func (*TableDescription) NumColumnNames 

func (t *TableDescription) NumColumnNames(withAuto bool) int

func (*TableDescription) SafePrimary 

func (t *TableDescription) SafePrimary() Field

func (*TableDescription) SimpleFields 

func (t *TableDescription) SimpleFields() FieldList

type Type 

type Type struct {
	PkgPath   string // package name (full path)
	PkgName   string // package name (short name)
	Name      string // name of source code type.
	IsPtr     bool
	IsScanner bool
	IsValuer  bool
	Base      Kind // underlying source code kind.
}

func (Type) NullableValue 

func (t Type) NullableValue() string

func (Type) Star 

func (t Type) Star() string

func (Type) String 

func (t Type) String() string

func (Type) Tag 

func (t Type) Tag() string

func (Type) Type 

func (t Type) Type() string

type TypeSet 

type TypeSet map[Type]struct{}

TypeSet is the primary type that represents a set

func BuildTypeSetFromChan 

func BuildTypeSetFromChan(source <-chan Type) TypeSet

BuildTypeSetFromChan constructs a new TypeSet from a channel that supplies a sequence of values until it is closed. The function doesn't return until then.

func ConvertTypeSet 

func ConvertTypeSet(values ...interface{}) (TypeSet, bool)

ConvertTypeSet constructs a new set containing the supplied values, if any. The returned boolean will be false if any of the values could not be converted correctly.

func NewTypeSet 

func NewTypeSet(values ...Type) TypeSet

NewTypeSet creates and returns a reference to an empty set.

func (TypeSet) Add 

func (set TypeSet) Add(i ...Type) TypeSet

Add adds items to the current set, returning the modified set.

func (TypeSet) Append 

func (set TypeSet) Append(more ...Type) TypeSet

Union returns a new set with all items in both sets.

func (TypeSet) Cardinality 

func (set TypeSet) Cardinality() int

Cardinality returns how many items are currently in the set. This is a synonym for Size.

func (*TypeSet) Clear 

func (set *TypeSet) Clear()

Clear clears the entire set to be the empty set.

func (TypeSet) Clone 

func (set TypeSet) Clone() TypeSet

Clone returns a shallow copy of the map. It does not clone the underlying elements.

func (TypeSet) Contains 

func (set TypeSet) Contains(i Type) bool

Contains determines if a given item is already in the set.

func (TypeSet) ContainsAll 

func (set TypeSet) ContainsAll(i ...Type) bool

ContainsAll determines if the given items are all in the set

func (TypeSet) CountBy 

func (set TypeSet) CountBy(predicate func(Type) bool) (result int)

CountBy gives the number elements of TypeSet that return true for the passed predicate.

func (TypeSet) Difference 

func (set TypeSet) Difference(other TypeSet) TypeSet

Difference returns a new set with items in the current set but not in the other set

func (TypeSet) Equals 

func (set TypeSet) Equals(other TypeSet) bool

Equals determines if two sets are equal to each other. If they both are the same size and have the same items they are considered equal. Order of items is not relevent for sets to be equal.

func (TypeSet) Exists 

func (set TypeSet) Exists(fn func(Type) bool) bool

Exists applies a predicate function to every element in the set. If the function returns true, the iteration terminates early. The returned value is true if an early return occurred. or false if all elements were visited without finding a match.

func (TypeSet) Filter 

func (set TypeSet) Filter(fn func(Type) bool) TypeSet

Filter returns a new TypeSet whose elements return true for func. The original set is not modified

func (TypeSet) FlatMap 

func (set TypeSet) FlatMap(fn func(Type) []Type) TypeSet

FlatMap returns a new TypeSet by transforming every element with a function fn that returns zero or more items in a slice. The resulting list may have a different size to the original list. The original list is not modified.

This is a domain-to-range mapping function. For bespoke transformations to other types, copy and modify this method appropriately.

func (TypeSet) Forall 

func (set TypeSet) Forall(fn func(Type) bool) bool

Forall applies a predicate function to every element in the set. If the function returns false, the iteration terminates early. The returned value is true if all elements were visited, or false if an early return occurred.

Note that this method can also be used simply as a way to visit every element using a function with some side-effects; such a function must always return true.

func (TypeSet) Foreach 

func (set TypeSet) Foreach(fn func(Type))

Foreach iterates over TypeSet and executes the passed func against each element.

func (TypeSet) Intersect 

func (set TypeSet) Intersect(other TypeSet) TypeSet

Intersect returns a new set with items that exist only in both sets.

func (TypeSet) IsEmpty 

func (set TypeSet) IsEmpty() bool

IsEmpty returns true if the set is empty.

func (TypeSet) IsSequence 

func (set TypeSet) IsSequence() bool

IsSequence returns true for lists.

func (TypeSet) IsSet 

func (set TypeSet) IsSet() bool

IsSet returns false for lists.

func (TypeSet) IsSubset 

func (set TypeSet) IsSubset(other TypeSet) bool

IsSubset determines if every item in the other set is in this set.

func (TypeSet) IsSuperset 

func (set TypeSet) IsSuperset(other TypeSet) bool

IsSuperset determines if every item of this set is in the other set.

func (TypeSet) Map 

func (set TypeSet) Map(fn func(Type) Type) TypeSet

Map returns a new TypeSet by transforming every element with a function fn. The original set is not modified.

This is a domain-to-range mapping function. For bespoke transformations to other types, copy and modify this method appropriately.

func (TypeSet) MaxBy 

func (set TypeSet) MaxBy(less func(Type, Type) bool) Type

MaxBy returns an element of TypeSet containing the maximum value, when compared to other elements using a passed func defining ‘less’. In the case of multiple items being equally maximal, the first such element is returned. Panics if there are no elements.

func (TypeSet) MinBy 

func (set TypeSet) MinBy(less func(Type, Type) bool) Type

MinBy returns an element of TypeSet containing the minimum value, when compared to other elements using a passed func defining ‘less’. In the case of multiple items being equally minimal, the first such element is returned. Panics if there are no elements.

func (TypeSet) NonEmpty 

func (set TypeSet) NonEmpty() bool

NonEmpty returns true if the set is not empty.

func (TypeSet) Partition 

func (set TypeSet) Partition(p func(Type) bool) (TypeSet, TypeSet)

Partition returns two new TypeSets whose elements return true or false for the predicate, p. The first result consists of all elements that satisfy the predicate and the second result consists of all elements that don't. The relative order of the elements in the results is the same as in the original list. The original set is not modified

func (TypeSet) Remove 

func (set TypeSet) Remove(i Type)

Remove allows the removal of a single item from the set.

func (TypeSet) Send 

func (set TypeSet) Send() <-chan Type

Send returns a channel that will send all the elements in order. A goroutine is created to send the elements; this only terminates when all the elements have been consumed

func (TypeSet) Size 

func (set TypeSet) Size() int

Size returns how many items are currently in the set. This is a synonym for Cardinality.

func (TypeSet) SymmetricDifference 

func (set TypeSet) SymmetricDifference(other TypeSet) TypeSet

SymmetricDifference returns a new set with items in the current set or the other set but not in both.

func (TypeSet) ToInterfaceSlice 

func (set TypeSet) ToInterfaceSlice() []interface{}

ToInterfaceSlice returns the elements of the current set as a slice of arbitrary type.

func (TypeSet) ToSlice 

func (set TypeSet) ToSlice() []Type

ToSlice returns the elements of the current set as a slice.

func (TypeSet) Union 

func (set TypeSet) Union(other TypeSet) TypeSet

Union returns a new set with all items in both sets.

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