| 1 | | = !MapGuide RFC 50 - Enhance expression engine concat function = |
| 2 | | |
| 3 | | This page contains a change request (RFC) for the !MapGuide Open Source project. |
| 4 | | More !MapGuide RFCs can be found on the [wiki:MapGuideRfcs RFCs] page. |
| 5 | | |
| 6 | | |
| 7 | | == Status == |
| 8 | | |
| 9 | | ||RFC Template Version||(1.0)|| |
| 10 | | ||Submission Date|| June 25, 2008 || |
| 11 | | ||Last Modified|| Bruce Dechant [[Timestamp]]|| |
| 12 | | ||Author||Bruce Dechant|| |
| 13 | | ||RFC Status||draft|| |
| 14 | | ||Implementation Status||draft|| |
| 15 | | ||Proposed Milestone||2.1|| |
| 16 | | ||Assigned PSC guide(s)||Bruce Dechant|| |
| 17 | | ||'''Voting History'''|| || |
| 18 | | ||+1|| || |
| 19 | | ||+0|| || |
| 20 | | ||-0|| || |
| 21 | | ||-1|| || |
| 22 | | |
| 23 | | == Overview == |
| 24 | | |
| 25 | | This RFC is for adding an additional syntax to the concat function of the expression engine. |
| 26 | | |
| 27 | | == Motivation == |
| 28 | | |
| 29 | | The existing concat function syntax is difficult to work with when multiple concatenations need to be done. It requires the concat functions be nested whenever a new item needs to be concatenated. |
| 30 | | |
| 31 | | == Proposed Solution == |
| 32 | | |
| 33 | | The proposed solution is to add support for an additional syntax to the concat function. |
| 34 | | |
| 35 | | Old syntax: |
| 36 | | {{{ |
| 37 | | concat('Parcel ID: ', concat( PID , concat('\nOwner Name: ', concat( OWNER_NAME , concat('\nAddress: ', SITE_ADDR ))))) |
| 38 | | |
| 39 | | }}} |
| 40 | | |
| 41 | | New syntax: |
| 42 | | {{{ |
| 43 | | concat('Parcel ID: ', PID , '\nOwner Name: ', OWNER_NAME, '\nAddress: ', SITE_ADDR ) |
| 44 | | |
| 45 | | }}} |
| 46 | | |
| 47 | | The new syntax will consist of a comma delimited list of concatenation items. |
| 48 | | |
| 49 | | == Implications == |
| 50 | | |
| 51 | | The existing concat function syntax will continue to be supported in addition to the new syntax. |
| 52 | | |
| 53 | | == Test Plan == |
| 54 | | |
| 55 | | Test that the existing and new concat function syntax work. |
| 56 | | |
| 57 | | == Funding/Resources == |
| 58 | | |
| 59 | | None at this time. |
| | 1 | Empty |
