PremiseHQ Utility

Utility functions to help control PremiseHQ application flow

ServerAPI

import ServerAPI from 'phq-utility/lib/ServerAPI';

APIs / Methods

setVariables?: (variableObj: object) => void

Set AppKey, Key, Host, Premise, $ through variableObj

const Host = 'http://dev-nosql.premisehq.co';
const AppKey = 'cc3fdca374904ae89e3393779805efaf';
const Key = '2017asd0138dqwxiSBuPB/ZeTeWab1WIA==';

ServerAPI.setVariables({
    AppKey,
    Key,
    Host,
    $: window.jQuery // if applicable
})

Set $ when jQuery isn't initialized globally

getVariables?: () => object

Return an object with AppKey, Key, Host, Premise, $ keys.

getModuleData?: (queryObj: object, callBack: (res: object) => void) => object

Calls an API which performs query on a collection (module) based on queryObj.  queryObj accepts the following keys -

• moduleName - The targeted module
• where Check the following link to find out how to apply query on find function  https://docs.mongodb.com/manual/reference/method/db.collection.find/ Extent of implementation is still limited, everything might not work.&nbps; Use $like instead of $regex and send Regex operator or a string when relevant query needs to be constructed
• rowDid Use instead of where when the Did of the relevant row is known
• select - Array of fields that should be fetched
• orderBy - https://docs.mongodb.com/manual/reference/method/cursor.sort/#cursor.sort - Similar to how sort parameter is accepted there
• limit - A number to limit entries
• skip - A number to skip certain amount of initial entries

callBack is called once xhr request is complete.  Returned value is an ajax xhr object.

modifyModuleData?: (queryObj: object, callBack: (res: object) => void) => object

Calls an API which performs query on a collection (module) based on queryObj and update the relevant rows.  queryObj accepts the following keys -

• moduleName - The targeted module
• where Check the following link to find out how to apply query on find function  https://docs.mongodb.com/manual/reference/method/db.collection.find/ Extent of implementation is still limited, everything might not work.&nbps; Use $like instead of $regex and send Regex operator or a string when relevant query needs to be constructed
• rowDid Use instead of where when the Did of the relevant row is known
• data - An object with id-value pairs. id corresponds to field names.
• type - insert | update | delete - based on the operation required

callBack is called once xhr request is complete.  Returned value is an ajax xhr object.

rawAggregate?: (data: object, callBack: (res: object) => void) => object

Calls an API which performs aggregate on a collection (module) based on data  data accepts the following keys -

• from - The targeted module, we can also populate moduleName key instead
• condition Check the following link to find out what can be passed to a mongodb aggregate function  https://docs.mongodb.com/manual/core/aggregation-pipeline/  https://docs.mongodb.com/manual/meta/aggregation-quick-reference/ 
• count - Set true (boolean) if we're only interested in row count

callBack is called once xhr request is complete.  Returned value is an ajax xhr object.

aggregate?: (data: object, callBack: (res: object) => void) => object

Extension on rawAggregate  data accepts the following keys -

• from - The targeted module, we can also populate moduleName key instead
• where Similar to how $match is constructed in an aggregate function  https://docs.mongodb.com/manual/reference/operator/aggregation/match/
• group Similar to how $group is constructed in an aggregate function  https://docs.mongodb.com/manual/reference/operator/aggregation/group/
• orderBy Similar to how $sort is constructed in an aggregate function  https://docs.mongodb.com/manual/reference/operator/aggregation/sort/
• skip Similar to how $skip is constructed in an aggregate function  https://docs.mongodb.com/manual/reference/operator/aggregation/skip/
• limit Similar to how $limit is constructed in an aggregate function  https://docs.mongodb.com/manual/reference/operator/aggregation/limit/
• count - Set true (boolean) if we're only interested in row count
• optimize Set true if we require optimizing the amount of data sent. Should have select initialized and group uninitialized in such cases.  In a regular scenario, callBack sends res where res.Data is stringified JSON array when res.Status == "Success". When optimize is set true, the value of res.Data becomes a regular js Array.
• maintainOrder Function performs where, group, orderBy, skip, limit in the respective order if nothing is set. Set maintainOrder true if order should be maintained.

callBack is called once xhr request is complete.  Returned value is an ajax xhr object.

Limitations / Gotchas

// TODO

SnackBar

Built on top of node-snackbar.

import SnackBar from 'phq-utility/lib/ServerAPI';

APIs / Methods / Attributes

show?: (options: object) => string

See snackbar to find out the available configurations for options object.  Returns a token which can be used to close that specific token.

notify?: (textOrOptions: string | object, duration: number = 0) => string

It uses the show function under the hood, but provides a shortcut access if only text and duration of a snackbar need configuration. In such case first send text in the first parameter, and duration in second. Instead of text, the options (which show function accepts in the first parameter) can also be used in the first parameter  Has a default duration of 0 Returns a token which can be used to close that specific token.

warn?: (textOrOptions: string | object, duration: number = 8000) => string

Similar to notify except it has a default duration period of 8000ms.

close?: (token: string) => boolean

Closes the snackbar having the provided token. Dont send any arguments at all, if all existing snackbars are intended to be closed.

current?: object

Returns the current HTML DOM element containing the snackbar. null if no snackbar is present.

Premise

import Premise, { PurePremise } from 'phq-utility/lib/ServerAPI';

class Test extends Premise {
    ...

    componentDidMount () {
        this._requestHandler('aggregate', { from: 'Test', where: { TestField: '1' } }, res => {

        })
    }

    ...
}

APIs

_requestHandler?: (fn: string | Function, data: object, callBack: Function, config: object) => string | boolean

• fn  expects a function, we can also provide a string, in which case fn would be equal to ServerAPI[fn]. Here ServerAPI is the primary object exported by phq-utility. To fit regular structure, the function should have two parameters, one to receive some data, and another - a callback function, which should be invoked after request has been processed.  

  close can be sent as the value of fn, to abort a request with certain token.

• data - data is sent as the first parameter of that function, or send token value in case fn is equal to close

• callBack - callBack is sent as the second parameter of that function

• config 

  • onStart => called immediately after passing the initial requisites, before any delay are applied
  • delay => request is invoked delay ms later
  • beforeRequest => called immediately before invoking the request function. Returning 'false' from this function prevents further execution
  • forceCall => request called even if the component is unmounted
  • forceCallBack => callBack (received from parameter) invoked even if the component is unmounted
  • stayAlive => the request isn't aborted even if the component is unmounted
  • params => in case we wish to avoid the data and callBack parameter and send parameters differently, remember that last element of this array value will be considered a callBack
  • onEnd => called when request proceeding reaches its end

Returns a token which can be used to close the request. Returns true when close is used as fn and component was able to find the token and abort the request, else returns false.

_snackBarHandler?: (fnStr: string, fnConfig: object, config: object, alternateConfig: object) => string | undefined

• fnStr  expects a string, would call SnackBar's fnStr function afterwards   close is a reserved value, providing close as fnStr, closes relevant SnackBar instance having a specific token. Token is provided through the following parameter fnConfig.

• fnConfig - Sent as the first argument of the invoked SnackBar function.

• config  usually expects an object, possible attributes -

  • forceCall => SnackBar function called even if the component is unmounted
  • stayAlive => SnackBar instance isn't closed even if the component is unmounted

  In case value is not of type object, this is passed as the second argument of the invoked SnackBar function. Use alternativeConfig to pass configuration data then.

• alternateConfig  in case config is not of type object, this becomes an acting config

Returns a token which can be used to close the SnackBar. Returns result of SnackBar.close() close is used as fnStr.

_stackRequestExecutor?: (requests: Array, shouldReject: Function, callBack: Function) => void

// TODO

_clear?: () => void

Clears all requests and snackbar instances connected to Component

docCookies

import docCookies from 'phq-utility/lib/docCookies';

Exports the following framework  docCookies

Loader

A simple react component to render loading interface

import Loader from 'phq-utility/lib/Loader';

Props

style?: object

Adds style to the container

className?: string

Adds className to the container

dotSize?: string | number

Size of the dots rendered inside (e.g. 10, '10px', '2em' etc)

dotColor?: string

Color of the dots

Modal

import Modal from 'phq-utility/lib/Modal';

Props

open?: boolean

Show / hide modal

onHideRequest?: Function

Called when a request is made to hide the modal. At the moment, clicking on the overlay and pressing the Esc key trigger the function.

rootStyle?: object

Attaches style to root container

innerContainerStyle?: object

Attaches style to inner container

style?: object

Attaches style to immediate parent of Modals children

id?: string

Attaches id to immediate parent of Modals children

portal?: boolean

If reacts createPortal should be used to render the modal in a different place

transitOnUnmount?: boolean

If hiding transition should be applied even if the component is unmounted instead of setting open false. Might not have expected behavior if modal contains images with remote URL.

Combo

A select component built on top of react-select having bootstrap (.form-control) like styles out of the box.  Additional functions to support populating options on the fly as user searches providing an input.  Doesn't cover all react-selectprops,react-select should be used directly if complete control is expected.

import Combo from 'phq-utility/lib/Combo';

Props

remote?: boolean

If the options of the component should be fetched from a remote resource. By default its true.

options?: Array

Array of objects({ label, value }) to render possible options to select from. Is ignored when remote is set true.

value?: object | Array

Value of the component.

placeholder?: string

Placeholder of the component.

onChange?: (value? object | Array, info: object) => void

Triggered when value of the component changes.

isLoading?: boolean

Renders a loading UI.

isMulti?: boolean

If the user can select more than one option.

isDisabled?: boolean

Renders component is disabled mode.

isCreatable?: boolean

If creating new option not included in the options, supported.

isClearable?: boolean

If user can remove the selected value. By default set true if remote value is true.

menuPortalTarget?: [object HTMLElement]

In case component should be rendered through portal inside another HTML Element.

allowCreateWhileLoading?: boolean

See react-select. Available when isCreatable is true.

createOptionPosition?: boolean

See react-select. Available when isCreatable is true.

formatCreateLabel?: boolean

See react-select. Available when isCreatable is true.

isValidNewOption?: boolean

See react-select. Available when isCreatable is true.

getNewOptionData?: boolean

See react-select. Available when isCreatable is true.

onCreateOption?: boolean

See react-select. Available when isCreatable is true.

collectorKey?: string | Symbol

No-op if remote props is false. Use unique value for each type of combos where the components of that certain type fetch the same type of data as user continues search providing input. Reduces remote calls.  Should be provided at the time of mounting and shouldn't be altered throughout its life cycle.

expiryPeriod?: number

No-op if remote props is false. Amount of period in mili-seconds till component ignores searching remote options for the same input if options was already fetched before. By default its two minutes.  Should be provided at the time of mounting and shouldn't be altered throughout its life cycle.

SelectStyles?: object

See react-select styles.  Should be provided at the time of mounting and shouldn't be altered throughout its life cycle.

fn?: (data: any, callBack: Function) => object

No-op if remote props is false. The function that should be called when user searches for available options through input. Function should have a structure where the first parameter receives data and second parameter is used as a callback after request has been served. Combo expects this function to return an xhr-like object. 

import React, { Component, createElement as e } from 'react';
import Combo from 'phq-utility/lib/Combo';
import ServerAPI from 'phq-utility/lib/ServerAPI';

export default class SelectField extends Component {
    _onChange () {
        var { props } = this;
        var { onChange } = props;
        onChange && onChange.apply(null, [props].concat(Array.from(arguments)));
    }
    _onChange = this._onChange.bind(this);

    getRequestData (d) {
        const { props } = this;
        var { module, name, where } = props;
        return {
            from: module,
            where: Object.assign({
                [name]: {
                    $regex: d.text,
                    $options: 'i'
                }
            }, where || null),
            group: {
                _id: '$' + name,
                '0': {
                    $first: '$' + name
                },
            },
            skip: d.skip,
            limit: d.limit,
        }
    }
    getRequestData = this.getRequestData.bind(this);

    processResponse (r) {
        var res = r.response;
        if (res.Status == 'Success') {
            let options = [];
            JSON.parse(res.Data).forEach(i => {
                let v = i['0'];
                options.push({ label: v, value: v });
            })
            return { options };
        } else {
            // TODO
            // Handle exception
        }
    }
    processResponse = this.processResponse.bind(this);


    render () {
        const { props } = this;
        var { name, value, options, multiple, menuPortalTarget, style, className } = props;

        var comboProps = {
            ref: 'input',
            name,
            value,
            onChange: this._onChange,
            isMulti: multiple === true,
            isClearable: true,
            remote: options ? false : true,
            menuPortalTarget
        }

        if (options) {
            comboProps.options = options;
        } else {
            comboProps.getRequestData = this.getRequestData;
            comboProps.processResponse = this.processResponse;
            comboProps.fn = ServerAPI.aggregate;
        }

        if ('placeholder' in props) comboProps.placeholder = props.placeholder;

        return (
            <div style={style} className={className}>
                {e(Combo, comboProps)}
            </div>

        );
    }
}

getRequestData?: (data: object) => any

No-op if remote props is false. The function that is fed current props, text, skip & limit to receive returned result which will be used as the first argument of fn props function. 

Check out the above example how getRequestData gets incorporated.

processResponse?: (data: object) => object<{ options }>

No-op if remote props is false. After receiving the response from xhr, an object is sent in the first parameter, having current props with an added key response - where the response received from the xhr is set. Expects an object to be returned where the options key is set as an Array, to be rendered as the current options of the component. 

Check out the above example to find out how processResponse can be integrated.

License

ISC