column

package
v0.0.4 Latest Latest
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 Go to latest Published: Mar 20, 2019 License: MIT Imports: 13 Imported by: 0

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Index

Constants

View Source 
const (
	AllClickAction = iota + 1000
)

Variables

This section is empty.

Functions

func ApplyFormat 

func ApplyFormat(data interface{}, format string, timeFormat string) string

Types

type AliasColumn 

type AliasColumn struct {
	control.ColumnBase
	// contains filtered or unexported fields
}

AliasColumn is a column that uses the AliasGetter interface to get the alias text out of a database object. The data therefore should be a slice of objects that implement the AliasGetter interface. All ORM objects are AliasGetters (or should be).

func NewAliasColumn 

func NewAliasColumn(alias string, format ...string) *AliasColumn

NewAliasColumn creates a new table column that gets its text from an alias attached to an ORM object.

func NewDateAliasColumn 

func NewDateAliasColumn(alias string, timeFormat string, format ...string) *AliasColumn

NewAliasColumn creates a new table column that gets its text from an alias attached to an ORM object. The alias should get a DateTime type of data.

func (*AliasColumn) Init 

func (c *AliasColumn) Init(alias string, format string, timeFormat string)

func (*AliasColumn) SetFormat 

func (c *AliasColumn) SetFormat(format string) *AliasColumn

SetFormat sets the format string of the node column.

func (*AliasColumn) SetTimeFormat 

func (c *AliasColumn) SetTimeFormat(format string) *AliasColumn

SetTimeFormat sets the time format of the string, specifically for a DateTime column.

type AliasGetter 

type AliasGetter interface {
	GetAlias(key string) query.AliasValue
}

type AliasTexter 

type AliasTexter struct {
	// Alias is the alias name in the database object that we are interested in.
	Alias string
	// Format is a format string. It will be applied using fmt.Sprintf. If you don't provide a Format string, standard
	// string conversion operations will be used.
	Format string
	// TimeFormat is applied to the data using time.Format. You can have both a Format and TimeFormat, and the Format
	// will be applied using fmt.Sprintf after the TimeFormat is applied using time.Format.
	TimeFormat string
}

AliasTexter gets text out of an ORM object with an alias. If the alias does not exist, it will panic.

func (AliasTexter) CellText 

func (t AliasTexter) CellText(ctx context.Context, col control.ColumnI, rowNum int, colNum int, data interface{}) string

type CellTexter 

type CellTexter interface {
	control.CellTexter
}

type CheckboxColumn 

type CheckboxColumn struct {
	control.ColumnBase
	// contains filtered or unexported fields
}

CheckboxColumn is a table column that contains a checkbox in each row. You must provide it a CheckboxProvider to connect ids and default data to the checkbox. Use Changes() to get the list of checkbox ids that have changed since the list was initially drawn.

func NewCheckboxColumn 

func NewCheckboxColumn(p CheckboxProvider) *CheckboxColumn

NewChecboxColumn creates a new table column that contains a checkbox. You must provide a CheckboxProvider which will connect checkbox states to data states

The table will keep track of what checkboxes have been clicked and the new values. Call Changes() to get those changes. Or, if you are recording your changes in real time, attach a CheckboxColumnClick event to the table.

func (*CheckboxColumn) Action 

func (col *CheckboxColumn) Action(ctx context.Context, params page.ActionParams)

Action is called by the framework to respond to an event. Here it responds to a click in the CheckAll box.

func (*CheckboxColumn) AddActions 

func (col *CheckboxColumn) AddActions(t page.ControlI)

AddActions adds actions to the table that the column can respond to.

func (*CheckboxColumn) CellText 

func (col *CheckboxColumn) CellText(ctx context.Context, rowNum int, colNum int, data interface{}) string

CellText is called by the Table drawing mechanism to draw the content of a cell, which in this case will be a checkbox.

func (*CheckboxColumn) Changes 

func (col *CheckboxColumn) Changes() map[string]bool

Changes returns a map of ids corresponding to checkboxes that have changed. Both true and false values indicate the current state of that particular checkbox. Note that if a user checks a box, then checks it again, even though it is back to its original value, it will still show up in the changes list.

func (*CheckboxColumn) CheckboxAttributes 

func (col *CheckboxColumn) CheckboxAttributes(data interface{}) *html.Attributes

CheckboxAttributes returns the attributes for the input tag that will display the checkbox. If data is nil, it indicates a checkAll box.

func (*CheckboxColumn) HeaderCellHtml 

func (col *CheckboxColumn) HeaderCellHtml(ctx context.Context, rowNum int, colNum int) (h string)

HeaderCellHtml is called by the Table drawing system to draw the HeaderCellHtml.

func (*CheckboxColumn) Init 

func (col *CheckboxColumn) Init()

func (*CheckboxColumn) MarshalState added in v0.0.4 

func (t *CheckboxColumn) MarshalState(m maps.Setter)

MarshalState is an internal function to save the state of the control

func (*CheckboxColumn) PreRender added in v0.0.4 

func (col *CheckboxColumn) PreRender()

PreRender is called by the Table to tell the column that it is about to draw. Here we are resetting the list of currently showing checkboxes so that we can keep track of what is displayed. This is required to keep track of which boxes are checked in the event that Javascript is off.

func (*CheckboxColumn) ResetChanges added in v0.0.4 

func (col *CheckboxColumn) ResetChanges()

ResetChanges resets the column so it is ready to accept new data. You might need to call this if you have previously called SaveState. Or, change DataID in the CheckboxProvider to cause the changes to reset.

func (*CheckboxColumn) SetShowCheckAll 

func (col *CheckboxColumn) SetShowCheckAll(s bool) *CheckboxColumn

SetShowCheckAll will cause the CheckAll checkbox to appear in the header. You must show at least one header row to see the checkboxes too.

func (*CheckboxColumn) UnmarshalState added in v0.0.4 

func (t *CheckboxColumn) UnmarshalState(m maps.Loader)

UnmarshalState is an internal function to restore the state of the control

func (*CheckboxColumn) UpdateFormValues 

func (col *CheckboxColumn) UpdateFormValues(ctx *page.Context)

UpdateFormValues will look for changes to our checkboxes and record those changes.

type CheckboxColumnI 

type CheckboxColumnI interface {
	control.ColumnI
	CheckboxAttributes(data interface{}) *html.Attributes
}

type CheckboxProvider 

type CheckboxProvider interface {
	// RowID should return a unique id corresponding to the given data item. It is used to track the checked state of an individual checkbox.
	RowID(data interface{}) string
	// IsChecked should return true if the checkbox corresponding to the row data should initially be checked. After the
	// initial draw, the table will keep track of the state of the checkbox, meaning you do not need to live update your data.
	// If you are using the table just as a selection of items to act on, just return false here.
	IsChecked(data interface{}) bool
	// Attributes returns the attributes that will be applied to the checkbox corresponding to the data row.
	// Use this primarily for providing custom attributes. Return nil if you have no custom attributes.
	Attributes(data interface{}) *html.Attributes
	// If you enable the checkAll box, you can use this to return a map of all the ids and their initial values here. This is
	// mostly helpful if your table is not showing all the rows at once (i.e. you are using a paginator or scroller and
	// only showing a subset of data at one time). If your table is showing a checkAll box, and you return nil here, the
	// checkAll will only perform a javascript checkAll, and thus only check the visible items.
	All() map[string]bool
	// DataID should return an id that identifies the overall data. This could be a database record id.
	// It is used to determine if the checkboxes in the column should be reset if SaveState is on.
	// If the DataID changes, and SaveState is on, it will reset the changes.
	DataID() string
}

The CheckboxProvider interface defines a set of functions that you implement to provide for the initial display of a checkbox. You can descend your own CheckboxProvider from the DefaultCheckboxProvider to get the default behavior, and then add whatever functions you need to impelment.

type CustomColumn 

type CustomColumn struct {
	control.ColumnBase
}

CustomColumn is a table column that you can customize any way you want. You simply give it a CellTexter, and return the text from the cell texter. One convenient way to use this is to define a CellText function on the parent object and pass it as the CellTexter. If your CellTexter is going to output html instead of raw text, call SetIsHtml() on the column after creating it.

func NewCustomColumn 

func NewCustomColumn(texter CellTexter) *CustomColumn

NewCustomColumn creates a new column with a custom cell texter.

func (*CustomColumn) Init 

func (c *CustomColumn) Init(texter CellTexter)

type DefaultCheckboxProvider added in v0.0.4 

type DefaultCheckboxProvider struct{}

The DefaultCheckboxProvider is a mixin you can use to base your CheckboxProvider, and that will provide default functionality for the methods you don't want to implement.

func (DefaultCheckboxProvider) All added in v0.0.4 

func (c DefaultCheckboxProvider) All() map[string]bool

func (DefaultCheckboxProvider) Attributes added in v0.0.4 

func (c DefaultCheckboxProvider) Attributes(data interface{}) *html.Attributes

func (DefaultCheckboxProvider) DataID added in v0.0.4 

func (c DefaultCheckboxProvider) DataID() string

func (DefaultCheckboxProvider) IsChecked added in v0.0.4 

func (c DefaultCheckboxProvider) IsChecked(data interface{}) bool

func (DefaultCheckboxProvider) RowID added in v0.0.4 

func (c DefaultCheckboxProvider) RowID(data interface{}) string

type Getter 

type Getter interface {
	Get(string) interface{}
}

type GetterColumn 

type GetterColumn struct {
	control.ColumnBase
}

GetterColumn is a column that uses the Getter interface to get the text out of columns. The data therefore should be a slice of objects that implement the Getter interface.

func NewDateGetterColumn 

func NewDateGetterColumn(index string, timeFormat string, format ...string) *GetterColumn

func NewGetterColumn 

func NewGetterColumn(index string, format ...string) *GetterColumn

func (*GetterColumn) Init 

func (c *GetterColumn) Init(index string, format string, timeFormat string)

func (*GetterColumn) SetFormat 

func (c *GetterColumn) SetFormat(format string) *GetterColumn

func (*GetterColumn) SetTimeFormat 

func (c *GetterColumn) SetTimeFormat(format string) *GetterColumn

type GetterTexter 

type GetterTexter struct {
	// Key is the key to use when calling the Get function on the object.
	Key string
	// Format is a format string. It will be applied using fmt.Sprintf. If you don't provide a Format string, standard
	// string conversion operations will be used.
	Format string
	// TimeFormat is applied to the data using time.Format. You can have both a Format and TimeFormat, and the Format
	// will be applied using fmt.Sprintf after the TimeFormat is applied using time.Format.
	TimeFormat string
}

GetterTexter lets you get items out of map like objects using the Getter interface.

func (GetterTexter) CellText 

func (t GetterTexter) CellText(ctx context.Context, col control.ColumnI, rowNum int, colNum int, data interface{}) string

type MapColumn 

type MapColumn struct {
	control.ColumnBase
}

MapColumn is a table that works with data that is in the form of a map. The data item itself must be convertible into a string, either by normal string conversion semantics, or using the supplied format string. The format string will be applied to a date if the data is a date, or to the string using fmt.Sprintf

func NewMapColumn 

func NewMapColumn(index interface{}) *MapColumn

func NewTimeMapColumn 

func NewTimeMapColumn(index interface{}, timeFormat string) *MapColumn

func (*MapColumn) Init 

func (c *MapColumn) Init(index interface{}, timeFormat string)

func (*MapColumn) SetFormat 

func (c *MapColumn) SetFormat(format string) *MapColumn

func (*MapColumn) SetTimeFormat 

func (c *MapColumn) SetTimeFormat(format string) *MapColumn

type MapTexter 

type MapTexter struct {
	// Index is the index into the data that corresponds to this table
	Index interface{}
	// Format is a format string. It will be applied using fmt.Sprintf. If you don't provide a Format string, standard
	// string conversion operations will be used.
	Format string
	// TimeFormat is applied to the data using time.Format. You can have both a Format and TimeFormat, and the Format
	// will be applied using fmt.Sprintf after the TimeFormat is applied using time.Format.
	TimeFormat string
}

MapTexter is the default CellTexter for tables. It lets you get items out of maps.

func (MapTexter) CellText 

func (t MapTexter) CellText(ctx context.Context, col control.ColumnI, rowNum int, colNum int, data interface{}) string

type NodeColumn 

type NodeColumn struct {
	control.ColumnBase
	// contains filtered or unexported fields
}

NodeColumn is a column that uses a query.NodeI to get its text out of data that is coming from the ORM.

func NewDateNodeColumn 

func NewDateNodeColumn(node query.NodeI, timeFormat string, format ...string) *NodeColumn

NewDateNodeColumn creates a table column that uses a query.NodeI object to get a date out of an ORM object. node should point to data that is preloaded in the ORM object. timeFormat is a time format string for formatting the date. format is optional and if specified, should be a format string suitable for the fmt package.

func NewNodeColumn 

func NewNodeColumn(node query.NodeI, format ...string) *NodeColumn

NewNodeColumn creates a table column that uses a query.NodeI object to get its text out of an ORM object. node should point to data that is preloaded in the ORM object. format is optional and if specified, should be a format string suitable for the fmt package.

func (*NodeColumn) Init 

func (c *NodeColumn) Init(node query.NodeI, format string, timeFormat string)

func (*NodeColumn) SetFormat 

func (c *NodeColumn) SetFormat(format string) *NodeColumn

SetFormat sets the format string of the node column.

func (*NodeColumn) SetTimeFormat 

func (c *NodeColumn) SetTimeFormat(format string) *NodeColumn

SetTimeFormat sets the time format of the string, specifically for a DateTime column.

type NodeTexter 

type NodeTexter struct {
	// Key is the key to use when calling the Get function on the object.
	Node query.NodeI
	// Format is a format string. It will be applied using fmt.Sprintf. If you don't provide a Format string, standard
	// string conversion operations will be used.
	Format string
	// TimeFormat is applied to the data using time.Format. You can have both a Format and TimeFormat, and the Format
	// will be applied using fmt.Sprintf after the TimeFormat is applied using time.Format.
	TimeFormat string
}

NodeTexter is used by the NodeColumn to get text out of a database column.

func (NodeTexter) CellText 

func (t NodeTexter) CellText(ctx context.Context, col control.ColumnI, rowNum int, colNum int, data interface{}) string

type ProxyCellTexter 

type ProxyCellTexter interface {
	control.ProxyI
	CellTexter
}

type ProxyColumn 

type ProxyColumn struct {
	control.ColumnBase
	Proxy ProxyCellTexter
}

ProxyColumn is a table column that prints the output of a Proxy control. To use it, you must define your own proxy control that also has a CellText method attached to it, so that it satisfies the ProxyCellTexter interface above

func NewProxyColumn 

func NewProxyColumn(proxy ProxyCellTexter) *ProxyColumn

NewProxyColumn creates a new column with a custom cell texter.

Set isHtml to true to indicate that the cell texter is returning html and not plain text.

func (*ProxyColumn) Init 

func (c *ProxyColumn) Init(proxy ProxyCellTexter)

type SliceColumn 

type SliceColumn struct {
	control.ColumnBase
}

SliceColumn is a table that works with data that is in the form of a slice. The data item itself must be convertible into a string, either by normal string conversion semantics, or using the supplied format string.

func NewSliceColumn 

func NewSliceColumn(index int, format ...string) *SliceColumn

func NewTimeSliceColumn 

func NewTimeSliceColumn(index int, timeFormat string, format ...string) *SliceColumn

func (*SliceColumn) Init 

func (c *SliceColumn) Init(index int, format string, timeFormat string)

func (*SliceColumn) SetFormat 

func (c *SliceColumn) SetFormat(format string) *SliceColumn

func (*SliceColumn) SetTimeFormat 

func (c *SliceColumn) SetTimeFormat(format string) *SliceColumn

type SliceTexter 

type SliceTexter struct {
	// Index is the index into the data that corresponds to this table
	Index int
	// Format is a format string. It will be applied using fmt.Sprintf. If you don't provide a Format string, standard
	// string conversion operations will be used.
	Format string
	// TimeFormat is applied to the data using time.Format. You can have both a Format and TimeFormat, and the Format
	// will be applied using fmt.Sprintf after the TimeFormat is applied using time.Format.
	TimeFormat string
}

SliceTexter is the default CellTexter for tables. It lets you get items out of slices.

func (SliceTexter) CellText 

func (t SliceTexter) CellText(ctx context.Context, col control.ColumnI, rowNum int, colNum int, data interface{}) string

type StringGetter 

type StringGetter interface {
	Get(string) string
}

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