Stream views allow you to present data from a stream in the form you wish: as a data grid or chart; sorted and ordered as required; showing data from the latest run, or across all time; etc.
The following fields are configured for stream views:
| Field | Description |
|---|---|
| Basic Settings | |
| Name | The name of the stream view. By default, a space will be included before each capital letter. For example, the name CustSpendAverage will be displayed in the column heading as Cust Spend Average. |
| Display Type | A number of chart types are available:
HELPDEVTODO: no file download button on form; is this still correct anyway? If display type is a chart and the user elects to output the chart to HTML (either via a File Exporter or from a chart, PhixFlow will output the chart to HTML as a picture (.PNG). |
| Default Sort Order | If specified, the default order in which data should be displayed. See the Stream View Sort Order form. |
| Default Filter | Any filter on the stream can be selected as the default filter for this view. |
| Background Filter | Any filter on the stream can be selected as the background filter for this view. When the user opens this view the background filter is applied first and any other filter applied to the view (either specifically created/selected by the user or automatically applied as the default filter described above) applied on top of the background filter. |
| Default Action | The action that will be applied when users double-click on a row in a data grid. Often this is an update action - that allows users (if they have permissions to run the action) to update the record. But you can make this open a read-only detailed view of the record if that is more useful for most users. See Action. |
| Form View | Tick this box to make this a form view. This can be used to accepting input from a user, for an insert or update action. |
| View Attributes | |
A list of attributes displayed in the view, or to build a chart. Press For each attribute, the following fields are shown: | |
| Order | The order in which the attributes will appear in the view. For a grid view, this is the order of columns. |
| Name | The display name of the attribute in the view. By default, this is the same as the name of the attribute in the underlying stream. Remember that if you are applying an Aggregate Function to the attribute, it is often useful to reflect that in the display name. For example: you are going to display the average monthly spend for each customer, by applying the aggregate function Average to the attribute |
| Stream Function | You can specify an Aggregate Function on this attribute. As soon as you have specified a single aggregate attribute in your view, any other fields will be either aggregate attributes - if you also specify an aggregate function for them - or used as grouping attributes. |
| Role | This setting only shows if the view is a chart, i.e. not a data grid. This is the role that the field has in generating the chart. You can set the role manually in the stream view attribute editor - but it is generally better to create charts using the visual editor. To do this:
You will see a visual chart editor - you can drag stream attributes onto this editor to create your chart. |
| Decimal Places | This field will only show if the underlying stream attribute has type Float. The number of decimal places to display. |
| Date/Time Format | This field will only show if the underlying stream attribute has type Date or Datetime. See toString for a description of display formats. |
| Hidden | HELPDEVTODO: not shown for charts, should it be? If not, put in Grid Settings section Whether the field is shown on the view. Sometimes you need to include fields in views so that they can be used in filters and Actions, but displaying them would make the view cluttered. Make the field hidden. |
| Stream Attribute Details | |
Name | The name of the underlying stream attribute. |
| Type | The type of the underlying stream attribute. This cannot be edited here. It must be edited in the Stream. |
| Grid Settings | |
| These settings are only available for view attributes for grid views | |
| Grid Default Width (pixels) | Set the default width of the column for this attribute. PhixFlow will create the grid with default column widths - you only need to specify a value in this field if the width you want is different from this default. |
| Label | An optional label for the resulting column header. If left blank, this is the Name of the stream view attribute. The label gives you more options for setting the column header - for example, control over the white space in the column heading - but you can also make this an expression. For example, to that the column contains transactions for the currently logged in user, you could use: "Transactions for " + _user.username For user Transactions for pchevalier To use an expression in this field, tick the box Label is Expression |
| Label is Expression | Tick this box if you want to set the Label using an expression. |
| Changes Row Colour | If ticked, the row colour changes whenever the value in this field changes. |
| Alignment | Set the alignment of values in this column to:
|
| Form Settings | |
| These settings are only available for form views - that is, grid views that have Form View ticked. | |
| Read Only | This makes the field read-only in the form view. |
| Height On Form (pixels) | Sets the height of the form field for this attribute. PhixFlow will create the form field with a default height - you only need to specify a value in this field if the height you want is different from this default. |
| Width On Form (pixels) | Sets the width of the form field for this attribute. PhixFlow will create the form field with a default width - you only need to specify a value in this field if the width you want is different from this default. |
| Multiline on Form | If ticked, users can press the Enter key to create multiple lines in this field, or copy multi-line text into this field. |
| Selection View Attribute | This sets the dropdown list from which the user can pick a value. Drag the stream view attribute that you want to use for the dropdown list into this field. The Show the dropdown button option must be ticked to display the drop down. When a user is entering or updating data using a form view, you can use the internal variable _form to use a value already entered in the form in the filter on a selection view. That is, the values that appear in a drop down list will be governed by values they have entered so far in the form. See Configuring Selection View Attributes below for an example of configuring selection view attributes. If another stream view attribute has a Selection View Attribute set and has Show the dropdown button set to yes, then it is possible to set the current stream view attribute from the same selection view without a further dropdown list. Drag the stream view attribute that you want to use to set this stream view attribute into this field Drag the attribute out of the field to delete the contents of the Selection View Attribute. |
| Show the dropdown button | See Selection View Attribute above. |
| Formatting Rules | |
A list of the formatting rules that apply to this field in the view. This section only appears when you are configuring a grid view. All formatting rules whose Rule Expression evaluates to true will be applied to the field in the grid. However, you can tick Stop if True so that, if a rule evaluates to true, no styles that follow this in the list of rules will be applied - regardless of the result of their Rule Expression. For each formatting rule, set the following fields: | |
| Rule Expression | An expression to govern whether this rule will be applied to this field in the grid. If this expression evaluates to true, the rule will be applied. |
| Style | Select a style from the drop-down list, or create a new style. |
| Order | The order in which the formatting rules are applied. |
| Enabled | Whether the rule is currently active. |
| Stop if True | If ticked, if this rule evaluates to true, no styles that follow this will be applies, regardless of the result of their Rule Expression. |
| Description | A description of the formatting rule. |
| Refresh Actions | |
A list of Refresh Actions which are all the actions that, following their execution, will cause this view to be refreshed. To add a Refresh Action go to a Stream's Actions tab and drag actions into this tab. The stream does not have to be the parent of this stream view. | |
| Menu Items | |
A list of the buttons, menus and sub-menus that will be presented on this view - which buttons are available to users depends on whether they have permissions to run these actions. Only actions that belong to the parent stream can be added to a view. There are three ways to add Lists and Buttons:
For each button you set the following fields: | |
| Name | The internal name of the action button. This name will be used to refer to this button in other configuration objects |
| Display Name | The name that will be presented to users when they open the form. |
| Order | The order that the button will be shown in the banner of the form, or, if the button is on a list (a menu or sub-menu), the order the button will appear in that list. |
| Description | A description of the action button. |
| Filters | |
The list of filters which will be available to users in the drop down list of filters on the view. There are two ways to add a filter to this list:
| |
| Access Permissions | |
| All Users Can View Data | If ticked, all users will be able to see data in this view (provided they have the basic privilege to view stream views). If this field is unticked, a list of user groups will appear: |
| User Groups | |
| A list of the user groups whose users can see data in this view. This list only appears if All Users Can View Data is unticked. | |
| Advanced | |
| Selection Attribute | This attribute will be used to determine the record selected. This is important when the data will be refreshed while users are looking at it - for example, if they run actions that run task plans to update the data, and which are set as refresh actions (see above). Setting this using a key field of the data means that after the refresh, the same record will be selected as before. |
HELPDEVTODO: David will probably change the name of this Override Default Row Selection Style | The style that will applied to rows in this view when they are selected. If set, this will override the default selected row style set in the System configuration. |
| Select First Row By Default | If ticked, the first row shown in the view will be selected when the view is opened. |
| Periods | Number of processing periods from the stream to display on the chart. If a full set of data is generated in each period, then this will be 1. If the data is spread across processing periods in the stream - for example, each processing period only contains new data for that day, but we want to plot data across a number of days - then this number must be high enough to include all data of interest to show on a chart. |
| Default Width | The default width of the view. If empty, the view's width will be set to the system default value. |
| Default Height | The default height of the view. If empty, the view's height will be set to the system default value. |
| Allow Multi-Select | If ticked, users will be able to select more than one row in the grid. |
| Excel Template | An excel template can be linked to the view to specify the format the chart data should be exported in. The location that excel templates must be saved to is specified in the System Configuration. |
Values governing the appearance of charts are configured in the Chart Layout tab.
The following fields apply to Pivot views:
| Field | Description | ||||
|---|---|---|---|---|---|
| Pivot Column Source | The pivot column source determines how the the values that are converted to Pivot Columns are generated:
If no labels are provided, they are derived from the pivot values using the formatting options set on the Column attribute. | ||||
| Pivot Column Expr | If Pivot Column Source == Expression, this expression must return either a list of values or a list of pairs of values (the values and corresponding labels). E.g.
or
The expression can refer to any lookup pipe that is an input to the Stream being viewed. If no labels are provided, they are derived from the pivot values using the formatting options set on the Column attribute. | ||||
| Row Attributes | The row attributes will be displayed on the left of the view. | ||||
| Maximum Pivot Columns | This is the maximum number of pivot columns that can be displayed. If this is blank, the system-wide default in System Configuration is used. | ||||
Column attribute | Values in the Column Attribute are mapped to separate columns in the resulting view. The formatting options on the attribute (decimal places, date/time format) can be used to automatically generate column headers corresponding to Column Attribute values. | ||||
| Value Attribute | When the view is displayed, the value in this Value Attribute will be displayed in the column corresponding to the value in the Column Attribute. A Pivot View is not automatically grouped. To make this a grouped view, you should set the value attribute's aggregate function (e.g. to SUM). | ||||
| Label Attribute | If Pivot Column Source == View Data, this attribute provides the pivot column labels corresponding to the column values. In most cases, the number of values for the label attribute, should be exactly the same as the number of values for the column attribute. |
The following fields apply to all graphs, that is, all display types other than Grid or Pivot:
| Field | Description |
|---|---|
| Default Resolution | Set the default resolution for the generated graph. Larger values will produce a more finely grained image, and equivalently smaller fonts, sometimes useful when using graphs containing a large amount of data. Smaller values will produce a bolder, less finely grained image, sometimes useful for producing a clearer graph when there is not much data to display. |
| Minimum Value | Minimum value along the vertical axis to be displayed. This value will be lowest point on the vertical axis if any value in the data plotted falls below this value. Otherwise, the graph will be automatically sized as normal. |
| Maximum Value | Maximum value along the vertical axis to be displayed. This value will be the highest point on the vertical axis if any value in the data plotted falls above this value. Otherwise, the graph will be automatically sized as normal. |
| Fixed Scale | If fixed scale is turned on, the the maximum value and minimum value defined will always be used as the highest and lowest points on the vertical axis, regardless of the data plotted. |
| Horizontal Axis Title | The label given to the horizontal axis. |
| Vertical Axis Title | The label given to the vertical axis. |
| Include Legend | When a series is used, if this is turned on then a box listing all lines shown, along with the corresponding values, is displayed on the graph. |
| Tick label angle | The orientation of the values displayed along the horizontal axis. Select a value from the drop down menu. |
| Show Horizontal Gridlines | If this is turned on, horizontal gridlines are displayed on the chart. |
| Show Vertical Gridlines | If this is turned on, vertical gridlines are displayed on the chart. |
| Show Values on Charts | If this is turned on, then the y/data attribute values are also displayed on the chart for better clarity. |
The following fields apply only to display type: Line Chart (times series horizontal axis):
| Field | Description |
|---|---|
| Primary Axis Unit | Units for date display along the horizontal axis. Choose a value from the drop down list. Note, however, that only as many values will be displayed as can comfortably be fitted in the space available. |
| Primary Axis Format | Choose a format to display dates along the primary horizontal axis. |
| Secondary Axis Unit | Units for an optional, second date display along the horizontal axis. This might be used, for example, to create a graph where the months are shown along the primary horizontal axis (Primary Axis Unit = 'Month', Primary Axis Format = 'Jan, Feb') and the years are shown along a line below this, along the secondary horizontal axis (Secondary Axis Unit = 'Year', Secondary Axis Format = 'Four digit year'). |
| Secondary Axis Format | Choose a format to display dates along the secondary horizontal axis, if this is being used. |
The following fields apply only to dial charts:
| Field | Description |
|---|---|
| Major Tick Increment | The incremental values at which major tick marks should be shown. Do not set too low for the minimum/maximum values specified otherwise there will be too many major ticks. |
| Minor Tick Count | The number of tick marks between each major tick. |
| First Band Colour | The colour of the first segment on the three coloured arc indicating different regions of the dial. |
| Second Band Colour | The colour of the second segment on the three coloured arc indicating different regions of the dial. |
| Third Band Colour | The colour of the third segment on the three coloured arc indicating different regions of the dial. |
| First Threshold Value | The value at which the first band colour changes to the second band colour. |
| Second Threshold Value | The value at which the second band colour changes to the third band colour. |
| Dial Style | Arc or Circular. |
Colouring grid rows
The colours of particular rows can be customized by creating a Stream View Attribute called 'gridRowColour'. The value of this attribute should evaluate to either a hexadecimal value representing a colour or to the lower case name of one of the basic HTML colours. Visit www.w3schools.com/tags/ref_colorpicker.asp to see how hexadecimal values correspond to real colours.
The table below lists the basic HTML colour names:
| Aqua | Black | Blue | Fuchsia |
| Gray | Green | Lime | Maroon |
| Navy | Olive | Purple | Red |
| Silver | Teal | White | Yellow |
It is advised not to use dark colours as they may cause the grid data to be hardly visible.
Configuring Selection View Attributes - setting up "drop down" lists
HELPDEVTODO - update screen shots and instructions as needed
Configuring Selection View Attributes is illustrated with an example:
You have a selection of items for sale, as below:
You also have a form view that allows you to edit these entries - this pops up when the Edit button is clicked:
You need to assign a tax band to each item. You also have a set of tax bands configured:
To help with this task, you will set up a selection list to populate the tax band and tax rate values for the sales items, from the list of tax bands. To do this, open the configuration form for the form view 008 Edit Sales Item, then open the configuration form for the view attribute TaxBand:
Then open the list of attributes for the view that gives the list of tax bands:
From the list of attributes that pop up, drag the attribute BandDescription into the Selection View Attribute field, and tick the Show the dropdown button flag.
Populating further attributes from the same selection view
Repeat the same process for the view attribute TaxRate, dragging the attribute BandRate from the view of tax bands into the Selection View Attribute field. This time, do not tick the Show the dropdown button flag.
The form view will now appear as:
If you press the button next to the TaxBand field the list of tax bands will appear - you can select a row from this list by double-clicking it. This will populate the TaxBand and TaxRate fields for the sales item with the selected tax band details:
Controlling drop-down lists with other form values
You can use values that users have already entered into a form to control the values that appear in a drop down list. This is done by using the internal variable _form. Add a background filter on the view used in the selection view attribute, and include a clause which uses the value _form.formAttributeName to match values in the selection view with the value entered by the user in the attribute formAttributeName.
Model Ref: 008
Form Icons
The form provides the standard form icons.