postgresql-simple-bind (empty) → 0.1.0.0
raw patch · 10 files changed
+1385/−0 lines, 10 filesdep +HUnitdep +attoparsecdep +basesetup-changed
Dependencies added: HUnit, attoparsec, base, bytestring, case-conversion, heredoc, postgresql-simple, postgresql-simple-bind, template-haskell, text, time
Files
- LICENSE +674/−0
- Setup.hs +2/−0
- examples/Main.hs +38/−0
- postgresql-simple-bind.cabal +79/−0
- src/Database/PostgreSQL/Simple/Bind.hs +28/−0
- src/Database/PostgreSQL/Simple/Bind/Implementation.hs +206/−0
- src/Database/PostgreSQL/Simple/Bind/Representation.hs +152/−0
- src/Database/PostgreSQL/Simple/Bind/Types.hs +45/−0
- src/Database/PostgreSQL/Simple/Bind/Util.hs +138/−0
- tests/Main.hs +23/−0
+ LICENSE view
@@ -0,0 +1,674 @@+ GNU GENERAL PUBLIC LICENSE+ Version 3, 29 June 2007++ Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>+ Everyone is permitted to copy and distribute verbatim copies+ of this license document, but changing it is not allowed.++ Preamble++ The GNU General Public License is a free, copyleft license for+software and other kinds of works.++ The licenses for most software and other practical works are designed+to take away your freedom to share and change the works. By contrast,+the GNU General Public License is intended to guarantee your freedom to+share and change all versions of a program--to make sure it remains free+software for all its users. We, the Free Software Foundation, use the+GNU General Public License for most of our software; it applies also to+any other work released this way by its authors. You can apply it to+your programs, too.++ When we speak of free software, we are referring to freedom, not+price. Our General Public Licenses are designed to make sure that you+have the freedom to distribute copies of free software (and charge for+them if you wish), that you receive source code or can get it if you+want it, that you can change the software or use pieces of it in new+free programs, and that you know you can do these things.++ To protect your rights, we need to prevent others from denying you+these rights or asking you to surrender the rights. Therefore, you have+certain responsibilities if you distribute copies of the software, or if+you modify it: responsibilities to respect the freedom of others.++ For example, if you distribute copies of such a program, whether+gratis or for a fee, you must pass on to the recipients the same+freedoms that you received. You must make sure that they, too, receive+or can get the source code. And you must show them these terms so they+know their rights.++ Developers that use the GNU GPL protect your rights with two steps:+(1) assert copyright on the software, and (2) offer you this License+giving you legal permission to copy, distribute and/or modify it.++ For the developers' and authors' protection, the GPL clearly explains+that there is no warranty for this free software. For both users' and+authors' sake, the GPL requires that modified versions be marked as+changed, so that their problems will not be attributed erroneously to+authors of previous versions.++ Some devices are designed to deny users access to install or run+modified versions of the software inside them, although the manufacturer+can do so. This is fundamentally incompatible with the aim of+protecting users' freedom to change the software. The systematic+pattern of such abuse occurs in the area of products for individuals to+use, which is precisely where it is most unacceptable. Therefore, we+have designed this version of the GPL to prohibit the practice for those+products. If such problems arise substantially in other domains, we+stand ready to extend this provision to those domains in future versions+of the GPL, as needed to protect the freedom of users.++ Finally, every program is threatened constantly by software patents.+States should not allow patents to restrict development and use of+software on general-purpose computers, but in those that do, we wish to+avoid the special danger that patents applied to a free program could+make it effectively proprietary. To prevent this, the GPL assures that+patents cannot be used to render the program non-free.++ The precise terms and conditions for copying, distribution and+modification follow.++ TERMS AND CONDITIONS++ 0. Definitions.++ "This License" refers to version 3 of the GNU General Public License.++ "Copyright" also means copyright-like laws that apply to other kinds of+works, such as semiconductor masks.++ "The Program" refers to any copyrightable work licensed under this+License. Each licensee is addressed as "you". "Licensees" and+"recipients" may be individuals or organizations.++ To "modify" a work means to copy from or adapt all or part of the work+in a fashion requiring copyright permission, other than the making of an+exact copy. The resulting work is called a "modified version" of the+earlier work or a work "based on" the earlier work.++ A "covered work" means either the unmodified Program or a work based+on the Program.++ To "propagate" a work means to do anything with it that, without+permission, would make you directly or secondarily liable for+infringement under applicable copyright law, except executing it on a+computer or modifying a private copy. Propagation includes copying,+distribution (with or without modification), making available to the+public, and in some countries other activities as well.++ To "convey" a work means any kind of propagation that enables other+parties to make or receive copies. Mere interaction with a user through+a computer network, with no transfer of a copy, is not conveying.++ An interactive user interface displays "Appropriate Legal Notices"+to the extent that it includes a convenient and prominently visible+feature that (1) displays an appropriate copyright notice, and (2)+tells the user that there is no warranty for the work (except to the+extent that warranties are provided), that licensees may convey the+work under this License, and how to view a copy of this License. If+the interface presents a list of user commands or options, such as a+menu, a prominent item in the list meets this criterion.++ 1. Source Code.++ The "source code" for a work means the preferred form of the work+for making modifications to it. "Object code" means any non-source+form of a work.++ A "Standard Interface" means an interface that either is an official+standard defined by a recognized standards body, or, in the case of+interfaces specified for a particular programming language, one that+is widely used among developers working in that language.++ The "System Libraries" of an executable work include anything, other+than the work as a whole, that (a) is included in the normal form of+packaging a Major Component, but which is not part of that Major+Component, and (b) serves only to enable use of the work with that+Major Component, or to implement a Standard Interface for which an+implementation is available to the public in source code form. A+"Major Component", in this context, means a major essential component+(kernel, window system, and so on) of the specific operating system+(if any) on which the executable work runs, or a compiler used to+produce the work, or an object code interpreter used to run it.++ The "Corresponding Source" for a work in object code form means all+the source code needed to generate, install, and (for an executable+work) run the object code and to modify the work, including scripts to+control those activities. However, it does not include the work's+System Libraries, or general-purpose tools or generally available free+programs which are used unmodified in performing those activities but+which are not part of the work. For example, Corresponding Source+includes interface definition files associated with source files for+the work, and the source code for shared libraries and dynamically+linked subprograms that the work is specifically designed to require,+such as by intimate data communication or control flow between those+subprograms and other parts of the work.++ The Corresponding Source need not include anything that users+can regenerate automatically from other parts of the Corresponding+Source.++ The Corresponding Source for a work in source code form is that+same work.++ 2. Basic Permissions.++ All rights granted under this License are granted for the term of+copyright on the Program, and are irrevocable provided the stated+conditions are met. This License explicitly affirms your unlimited+permission to run the unmodified Program. The output from running a+covered work is covered by this License only if the output, given its+content, constitutes a covered work. This License acknowledges your+rights of fair use or other equivalent, as provided by copyright law.++ You may make, run and propagate covered works that you do not+convey, without conditions so long as your license otherwise remains+in force. You may convey covered works to others for the sole purpose+of having them make modifications exclusively for you, or provide you+with facilities for running those works, provided that you comply with+the terms of this License in conveying all material for which you do+not control copyright. Those thus making or running the covered works+for you must do so exclusively on your behalf, under your direction+and control, on terms that prohibit them from making any copies of+your copyrighted material outside their relationship with you.++ Conveying under any other circumstances is permitted solely under+the conditions stated below. Sublicensing is not allowed; section 10+makes it unnecessary.++ 3. Protecting Users' Legal Rights From Anti-Circumvention Law.++ No covered work shall be deemed part of an effective technological+measure under any applicable law fulfilling obligations under article+11 of the WIPO copyright treaty adopted on 20 December 1996, or+similar laws prohibiting or restricting circumvention of such+measures.++ When you convey a covered work, you waive any legal power to forbid+circumvention of technological measures to the extent such circumvention+is effected by exercising rights under this License with respect to+the covered work, and you disclaim any intention to limit operation or+modification of the work as a means of enforcing, against the work's+users, your or third parties' legal rights to forbid circumvention of+technological measures.++ 4. Conveying Verbatim Copies.++ You may convey verbatim copies of the Program's source code as you+receive it, in any medium, provided that you conspicuously and+appropriately publish on each copy an appropriate copyright notice;+keep intact all notices stating that this License and any+non-permissive terms added in accord with section 7 apply to the code;+keep intact all notices of the absence of any warranty; and give all+recipients a copy of this License along with the Program.++ You may charge any price or no price for each copy that you convey,+and you may offer support or warranty protection for a fee.++ 5. Conveying Modified Source Versions.++ You may convey a work based on the Program, or the modifications to+produce it from the Program, in the form of source code under the+terms of section 4, provided that you also meet all of these conditions:++ a) The work must carry prominent notices stating that you modified+ it, and giving a relevant date.++ b) The work must carry prominent notices stating that it is+ released under this License and any conditions added under section+ 7. This requirement modifies the requirement in section 4 to+ "keep intact all notices".++ c) You must license the entire work, as a whole, under this+ License to anyone who comes into possession of a copy. This+ License will therefore apply, along with any applicable section 7+ additional terms, to the whole of the work, and all its parts,+ regardless of how they are packaged. This License gives no+ permission to license the work in any other way, but it does not+ invalidate such permission if you have separately received it.++ d) If the work has interactive user interfaces, each must display+ Appropriate Legal Notices; however, if the Program has interactive+ interfaces that do not display Appropriate Legal Notices, your+ work need not make them do so.++ A compilation of a covered work with other separate and independent+works, which are not by their nature extensions of the covered work,+and which are not combined with it such as to form a larger program,+in or on a volume of a storage or distribution medium, is called an+"aggregate" if the compilation and its resulting copyright are not+used to limit the access or legal rights of the compilation's users+beyond what the individual works permit. Inclusion of a covered work+in an aggregate does not cause this License to apply to the other+parts of the aggregate.++ 6. Conveying Non-Source Forms.++ You may convey a covered work in object code form under the terms+of sections 4 and 5, provided that you also convey the+machine-readable Corresponding Source under the terms of this License,+in one of these ways:++ a) Convey the object code in, or embodied in, a physical product+ (including a physical distribution medium), accompanied by the+ Corresponding Source fixed on a durable physical medium+ customarily used for software interchange.++ b) Convey the object code in, or embodied in, a physical product+ (including a physical distribution medium), accompanied by a+ written offer, valid for at least three years and valid for as+ long as you offer spare parts or customer support for that product+ model, to give anyone who possesses the object code either (1) a+ copy of the Corresponding Source for all the software in the+ product that is covered by this License, on a durable physical+ medium customarily used for software interchange, for a price no+ more than your reasonable cost of physically performing this+ conveying of source, or (2) access to copy the+ Corresponding Source from a network server at no charge.++ c) Convey individual copies of the object code with a copy of the+ written offer to provide the Corresponding Source. This+ alternative is allowed only occasionally and noncommercially, and+ only if you received the object code with such an offer, in accord+ with subsection 6b.++ d) Convey the object code by offering access from a designated+ place (gratis or for a charge), and offer equivalent access to the+ Corresponding Source in the same way through the same place at no+ further charge. You need not require recipients to copy the+ Corresponding Source along with the object code. If the place to+ copy the object code is a network server, the Corresponding Source+ may be on a different server (operated by you or a third party)+ that supports equivalent copying facilities, provided you maintain+ clear directions next to the object code saying where to find the+ Corresponding Source. Regardless of what server hosts the+ Corresponding Source, you remain obligated to ensure that it is+ available for as long as needed to satisfy these requirements.++ e) Convey the object code using peer-to-peer transmission, provided+ you inform other peers where the object code and Corresponding+ Source of the work are being offered to the general public at no+ charge under subsection 6d.++ A separable portion of the object code, whose source code is excluded+from the Corresponding Source as a System Library, need not be+included in conveying the object code work.++ A "User Product" is either (1) a "consumer product", which means any+tangible personal property which is normally used for personal, family,+or household purposes, or (2) anything designed or sold for incorporation+into a dwelling. In determining whether a product is a consumer product,+doubtful cases shall be resolved in favor of coverage. For a particular+product received by a particular user, "normally used" refers to a+typical or common use of that class of product, regardless of the status+of the particular user or of the way in which the particular user+actually uses, or expects or is expected to use, the product. A product+is a consumer product regardless of whether the product has substantial+commercial, industrial or non-consumer uses, unless such uses represent+the only significant mode of use of the product.++ "Installation Information" for a User Product means any methods,+procedures, authorization keys, or other information required to install+and execute modified versions of a covered work in that User Product from+a modified version of its Corresponding Source. The information must+suffice to ensure that the continued functioning of the modified object+code is in no case prevented or interfered with solely because+modification has been made.++ If you convey an object code work under this section in, or with, or+specifically for use in, a User Product, and the conveying occurs as+part of a transaction in which the right of possession and use of the+User Product is transferred to the recipient in perpetuity or for a+fixed term (regardless of how the transaction is characterized), the+Corresponding Source conveyed under this section must be accompanied+by the Installation Information. But this requirement does not apply+if neither you nor any third party retains the ability to install+modified object code on the User Product (for example, the work has+been installed in ROM).++ The requirement to provide Installation Information does not include a+requirement to continue to provide support service, warranty, or updates+for a work that has been modified or installed by the recipient, or for+the User Product in which it has been modified or installed. Access to a+network may be denied when the modification itself materially and+adversely affects the operation of the network or violates the rules and+protocols for communication across the network.++ Corresponding Source conveyed, and Installation Information provided,+in accord with this section must be in a format that is publicly+documented (and with an implementation available to the public in+source code form), and must require no special password or key for+unpacking, reading or copying.++ 7. Additional Terms.++ "Additional permissions" are terms that supplement the terms of this+License by making exceptions from one or more of its conditions.+Additional permissions that are applicable to the entire Program shall+be treated as though they were included in this License, to the extent+that they are valid under applicable law. If additional permissions+apply only to part of the Program, that part may be used separately+under those permissions, but the entire Program remains governed by+this License without regard to the additional permissions.++ When you convey a copy of a covered work, you may at your option+remove any additional permissions from that copy, or from any part of+it. (Additional permissions may be written to require their own+removal in certain cases when you modify the work.) You may place+additional permissions on material, added by you to a covered work,+for which you have or can give appropriate copyright permission.++ Notwithstanding any other provision of this License, for material you+add to a covered work, you may (if authorized by the copyright holders of+that material) supplement the terms of this License with terms:++ a) Disclaiming warranty or limiting liability differently from the+ terms of sections 15 and 16 of this License; or++ b) Requiring preservation of specified reasonable legal notices or+ author attributions in that material or in the Appropriate Legal+ Notices displayed by works containing it; or++ c) Prohibiting misrepresentation of the origin of that material, or+ requiring that modified versions of such material be marked in+ reasonable ways as different from the original version; or++ d) Limiting the use for publicity purposes of names of licensors or+ authors of the material; or++ e) Declining to grant rights under trademark law for use of some+ trade names, trademarks, or service marks; or++ f) Requiring indemnification of licensors and authors of that+ material by anyone who conveys the material (or modified versions of+ it) with contractual assumptions of liability to the recipient, for+ any liability that these contractual assumptions directly impose on+ those licensors and authors.++ All other non-permissive additional terms are considered "further+restrictions" within the meaning of section 10. If the Program as you+received it, or any part of it, contains a notice stating that it is+governed by this License along with a term that is a further+restriction, you may remove that term. If a license document contains+a further restriction but permits relicensing or conveying under this+License, you may add to a covered work material governed by the terms+of that license document, provided that the further restriction does+not survive such relicensing or conveying.++ If you add terms to a covered work in accord with this section, you+must place, in the relevant source files, a statement of the+additional terms that apply to those files, or a notice indicating+where to find the applicable terms.++ Additional terms, permissive or non-permissive, may be stated in the+form of a separately written license, or stated as exceptions;+the above requirements apply either way.++ 8. Termination.++ You may not propagate or modify a covered work except as expressly+provided under this License. Any attempt otherwise to propagate or+modify it is void, and will automatically terminate your rights under+this License (including any patent licenses granted under the third+paragraph of section 11).++ However, if you cease all violation of this License, then your+license from a particular copyright holder is reinstated (a)+provisionally, unless and until the copyright holder explicitly and+finally terminates your license, and (b) permanently, if the copyright+holder fails to notify you of the violation by some reasonable means+prior to 60 days after the cessation.++ Moreover, your license from a particular copyright holder is+reinstated permanently if the copyright holder notifies you of the+violation by some reasonable means, this is the first time you have+received notice of violation of this License (for any work) from that+copyright holder, and you cure the violation prior to 30 days after+your receipt of the notice.++ Termination of your rights under this section does not terminate the+licenses of parties who have received copies or rights from you under+this License. If your rights have been terminated and not permanently+reinstated, you do not qualify to receive new licenses for the same+material under section 10.++ 9. Acceptance Not Required for Having Copies.++ You are not required to accept this License in order to receive or+run a copy of the Program. Ancillary propagation of a covered work+occurring solely as a consequence of using peer-to-peer transmission+to receive a copy likewise does not require acceptance. However,+nothing other than this License grants you permission to propagate or+modify any covered work. These actions infringe copyright if you do+not accept this License. Therefore, by modifying or propagating a+covered work, you indicate your acceptance of this License to do so.++ 10. Automatic Licensing of Downstream Recipients.++ Each time you convey a covered work, the recipient automatically+receives a license from the original licensors, to run, modify and+propagate that work, subject to this License. You are not responsible+for enforcing compliance by third parties with this License.++ An "entity transaction" is a transaction transferring control of an+organization, or substantially all assets of one, or subdividing an+organization, or merging organizations. If propagation of a covered+work results from an entity transaction, each party to that+transaction who receives a copy of the work also receives whatever+licenses to the work the party's predecessor in interest had or could+give under the previous paragraph, plus a right to possession of the+Corresponding Source of the work from the predecessor in interest, if+the predecessor has it or can get it with reasonable efforts.++ You may not impose any further restrictions on the exercise of the+rights granted or affirmed under this License. For example, you may+not impose a license fee, royalty, or other charge for exercise of+rights granted under this License, and you may not initiate litigation+(including a cross-claim or counterclaim in a lawsuit) alleging that+any patent claim is infringed by making, using, selling, offering for+sale, or importing the Program or any portion of it.++ 11. Patents.++ A "contributor" is a copyright holder who authorizes use under this+License of the Program or a work on which the Program is based. The+work thus licensed is called the contributor's "contributor version".++ A contributor's "essential patent claims" are all patent claims+owned or controlled by the contributor, whether already acquired or+hereafter acquired, that would be infringed by some manner, permitted+by this License, of making, using, or selling its contributor version,+but do not include claims that would be infringed only as a+consequence of further modification of the contributor version. For+purposes of this definition, "control" includes the right to grant+patent sublicenses in a manner consistent with the requirements of+this License.++ Each contributor grants you a non-exclusive, worldwide, royalty-free+patent license under the contributor's essential patent claims, to+make, use, sell, offer for sale, import and otherwise run, modify and+propagate the contents of its contributor version.++ In the following three paragraphs, a "patent license" is any express+agreement or commitment, however denominated, not to enforce a patent+(such as an express permission to practice a patent or covenant not to+sue for patent infringement). To "grant" such a patent license to a+party means to make such an agreement or commitment not to enforce a+patent against the party.++ If you convey a covered work, knowingly relying on a patent license,+and the Corresponding Source of the work is not available for anyone+to copy, free of charge and under the terms of this License, through a+publicly available network server or other readily accessible means,+then you must either (1) cause the Corresponding Source to be so+available, or (2) arrange to deprive yourself of the benefit of the+patent license for this particular work, or (3) arrange, in a manner+consistent with the requirements of this License, to extend the patent+license to downstream recipients. "Knowingly relying" means you have+actual knowledge that, but for the patent license, your conveying the+covered work in a country, or your recipient's use of the covered work+in a country, would infringe one or more identifiable patents in that+country that you have reason to believe are valid.++ If, pursuant to or in connection with a single transaction or+arrangement, you convey, or propagate by procuring conveyance of, a+covered work, and grant a patent license to some of the parties+receiving the covered work authorizing them to use, propagate, modify+or convey a specific copy of the covered work, then the patent license+you grant is automatically extended to all recipients of the covered+work and works based on it.++ A patent license is "discriminatory" if it does not include within+the scope of its coverage, prohibits the exercise of, or is+conditioned on the non-exercise of one or more of the rights that are+specifically granted under this License. You may not convey a covered+work if you are a party to an arrangement with a third party that is+in the business of distributing software, under which you make payment+to the third party based on the extent of your activity of conveying+the work, and under which the third party grants, to any of the+parties who would receive the covered work from you, a discriminatory+patent license (a) in connection with copies of the covered work+conveyed by you (or copies made from those copies), or (b) primarily+for and in connection with specific products or compilations that+contain the covered work, unless you entered into that arrangement,+or that patent license was granted, prior to 28 March 2007.++ Nothing in this License shall be construed as excluding or limiting+any implied license or other defenses to infringement that may+otherwise be available to you under applicable patent law.++ 12. No Surrender of Others' Freedom.++ If conditions are imposed on you (whether by court order, agreement or+otherwise) that contradict the conditions of this License, they do not+excuse you from the conditions of this License. If you cannot convey a+covered work so as to satisfy simultaneously your obligations under this+License and any other pertinent obligations, then as a consequence you may+not convey it at all. For example, if you agree to terms that obligate you+to collect a royalty for further conveying from those to whom you convey+the Program, the only way you could satisfy both those terms and this+License would be to refrain entirely from conveying the Program.++ 13. Use with the GNU Affero General Public License.++ Notwithstanding any other provision of this License, you have+permission to link or combine any covered work with a work licensed+under version 3 of the GNU Affero General Public License into a single+combined work, and to convey the resulting work. The terms of this+License will continue to apply to the part which is the covered work,+but the special requirements of the GNU Affero General Public License,+section 13, concerning interaction through a network will apply to the+combination as such.++ 14. Revised Versions of this License.++ The Free Software Foundation may publish revised and/or new versions of+the GNU General Public License from time to time. Such new versions will+be similar in spirit to the present version, but may differ in detail to+address new problems or concerns.++ Each version is given a distinguishing version number. If the+Program specifies that a certain numbered version of the GNU General+Public License "or any later version" applies to it, you have the+option of following the terms and conditions either of that numbered+version or of any later version published by the Free Software+Foundation. If the Program does not specify a version number of the+GNU General Public License, you may choose any version ever published+by the Free Software Foundation.++ If the Program specifies that a proxy can decide which future+versions of the GNU General Public License can be used, that proxy's+public statement of acceptance of a version permanently authorizes you+to choose that version for the Program.++ Later license versions may give you additional or different+permissions. However, no additional obligations are imposed on any+author or copyright holder as a result of your choosing to follow a+later version.++ 15. Disclaimer of Warranty.++ THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY+APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT+HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY+OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,+THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR+PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM+IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF+ALL NECESSARY SERVICING, REPAIR OR CORRECTION.++ 16. Limitation of Liability.++ IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS+THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY+GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE+USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF+DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD+PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),+EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF+SUCH DAMAGES.++ 17. Interpretation of Sections 15 and 16.++ If the disclaimer of warranty and limitation of liability provided+above cannot be given local legal effect according to their terms,+reviewing courts shall apply local law that most closely approximates+an absolute waiver of all civil liability in connection with the+Program, unless a warranty or assumption of liability accompanies a+copy of the Program in return for a fee.++ END OF TERMS AND CONDITIONS++ How to Apply These Terms to Your New Programs++ If you develop a new program, and you want it to be of the greatest+possible use to the public, the best way to achieve this is to make it+free software which everyone can redistribute and change under these terms.++ To do so, attach the following notices to the program. It is safest+to attach them to the start of each source file to most effectively+state the exclusion of warranty; and each file should have at least+the "copyright" line and a pointer to where the full notice is found.++ <one line to give the program's name and a brief idea of what it does.>+ Copyright (C) <year> <name of author>++ This program is free software: you can redistribute it and/or modify+ it under the terms of the GNU General Public License as published by+ the Free Software Foundation, either version 3 of the License, or+ (at your option) any later version.++ This program is distributed in the hope that it will be useful,+ but WITHOUT ANY WARRANTY; without even the implied warranty of+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the+ GNU General Public License for more details.++ You should have received a copy of the GNU General Public License+ along with this program. If not, see <http://www.gnu.org/licenses/>.++Also add information on how to contact you by electronic and paper mail.++ If the program does terminal interaction, make it output a short+notice like this when it starts in an interactive mode:++ <program> Copyright (C) <year> <name of author>+ This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.+ This is free software, and you are welcome to redistribute it+ under certain conditions; type `show c' for details.++The hypothetical commands `show w' and `show c' should show the appropriate+parts of the General Public License. Of course, your program's commands+might be different; for a GUI interface, you would use an "about box".++ You should also get your employer (if you work as a programmer) or school,+if any, to sign a "copyright disclaimer" for the program, if necessary.+For more information on this, and how to apply and follow the GNU GPL, see+<http://www.gnu.org/licenses/>.++ The GNU General Public License does not permit incorporating your program+into proprietary programs. If your program is a subroutine library, you+may consider it more useful to permit linking proprietary applications with+the library. If this is what you want to do, use the GNU Lesser General+Public License instead of this License. But first, please read+<http://www.gnu.org/philosophy/why-not-lgpl.html>.
+ Setup.hs view
@@ -0,0 +1,2 @@+import Distribution.Simple+main = defaultMain
+ examples/Main.hs view
@@ -0,0 +1,38 @@+{-# LANGUAGE NamedFieldPuns #-}++import Test.HUnit+import Control.Monad+import System.IO+import System.Exit+import Database.PostgreSQL.Simple++import Common (TestEnv(..), connectInfo)+import ExNumDumpster+import ExUsers+import ExMessages++testEnv :: TestEnv+testEnv = TestEnv {+ connectInfo = ConnectInfo {+ connectHost = "localhost"+ , connectPort = 5432+ , connectDatabase = "test"+ , connectUser = "test"+ , connectPassword = "TEST"+ }+ }++tests :: [TestEnv -> Test]+tests = [+ TestLabel "NumDumpster" . numDumpster+ , TestLabel "Users" . users+ , TestLabel "Messages" . messages+ ]++main :: IO ()+main = do+ mapM_ (`hSetBuffering` LineBuffering) [stdout, stderr]+ + Counts {cases, tried, errors, failures} <- runTestTT $ TestList $ map ($ testEnv) tests+ when (cases /= tried || errors /= 0 || failures /= 0) $ exitFailure+
+ postgresql-simple-bind.cabal view
@@ -0,0 +1,79 @@+name: postgresql-simple-bind+version: 0.1.0.0+synopsis: A FFI-like bindings for PostgreSQL stored functions+description: For tutorial see here: https:\/\/github.com\/zohl\/postgresql-simple-bind\/blob\/master\/README.md +license: GPL-3+license-file: LICENSE+author: Al Zohali+maintainer: Al Zohali <zohl@fmap.me>+-- copyright: +category: Database+build-type: Simple+-- extra-source-files: +cabal-version: >=1.10++source-repository head+ type: git+ location: https://github.com/zohl/postgresql-simple-bind.git++library+ build-depends: base >=4.8 && <4.9+ , attoparsec+ , bytestring+ , heredoc+ , postgresql-simple+ , template-haskell+ , text+ , time+ + hs-source-dirs: src+ exposed-modules:+ Database.PostgreSQL.Simple.Bind+ Database.PostgreSQL.Simple.Bind.Types+ Database.PostgreSQL.Simple.Bind.Util+ Database.PostgreSQL.Simple.Bind.Representation++ other-modules:+ Database.PostgreSQL.Simple.Bind.Implementation+ + default-language: Haskell2010++++test-suite tests+ type: exitcode-stdio-1.0++ hs-source-dirs: tests+ main-is: Main.hs++ ghc-options: -Wall++ build-depends: base+ , bytestring+ , HUnit+ , postgresql-simple+ , postgresql-simple-bind+ , text++ default-language: Haskell2010+++ +test-suite examples+ type: exitcode-stdio-1.0++ hs-source-dirs: examples+ main-is: Main.hs++ ghc-options: -Wall++ build-depends: attoparsec+ , base+ , bytestring+ , case-conversion+ , HUnit+ , postgresql-simple+ , postgresql-simple-bind+ , text++ default-language: Haskell2010
+ src/Database/PostgreSQL/Simple/Bind.hs view
@@ -0,0 +1,28 @@+{-|+ Module: Database.PostgreSQL.Simple.Bind+ Copyright: (c) 2016 Al Zohali+ License: GPL3+ Maintainer: Al Zohali <zohl@fmap.me>+ Stability: experimental+++ = Description++ postgresql-simple-bind is an extension for postgresql-simple library that+ faciliates and automates bindings creation. This is especially useful in a+ design pattern where an application communicates with a database via API hiding+ the internal structure of the latter.+ +-}++module Database.PostgreSQL.Simple.Bind (+ bindFunction+ , Options(..)+ , defaultOptions+ , PostgresType+ ) where+++import Database.PostgreSQL.Simple.Bind.Implementation+import Database.PostgreSQL.Simple.Bind.Util (Options (..), defaultOptions)+
+ src/Database/PostgreSQL/Simple/Bind/Implementation.hs view
@@ -0,0 +1,206 @@+{-# LANGUAGE DataKinds #-}+{-# LANGUAGE DeriveGeneric #-}+{-# LANGUAGE EmptyDataDecls #-}+{-# LANGUAGE FlexibleContexts #-}+{-# LANGUAGE GADTs #-}+{-# LANGUAGE GeneralizedNewtypeDeriving #-}+{-# LANGUAGE MultiParamTypeClasses #-}+{-# LANGUAGE OverloadedStrings #-}+{-# LANGUAGE QuasiQuotes #-}+{-# LANGUAGE TemplateHaskell #-}+{-# LANGUAGE TypeFamilies #-}+{-# LANGUAGE TypeOperators #-}+{-# LANGUAGE ScopedTypeVariables #-}+{-# LANGUAGE FlexibleInstances #-} ++{-|+ Module: Database.PostgreSQL.Simple.Bind.Implementation+ Copyright: (c) 2016 Al Zohali+ License: GPL3+ Maintainer: Al Zohali <zohl@fmap.me>+ Stability: experimental+-}+++module Database.PostgreSQL.Simple.Bind.Implementation (+ bindFunction+ , PostgresType+ ) where++import Control.Applicative+import Data.List+import Data.Text (Text, toLower, pack, unpack)+import Data.Time+import Data.Maybe+import Database.PostgreSQL.Simple+import Database.PostgreSQL.Simple.FromField+import Database.PostgreSQL.Simple.ToField+import Database.PostgreSQL.Simple.Types+import GHC.TypeLits+import Language.Haskell.TH.Syntax+import qualified Data.ByteString.Char8 as BS+import Database.PostgreSQL.Simple.Bind.Util (unwrapRow, unwrapColumn, mkFunctionName, Options(..))+import Database.PostgreSQL.Simple.Bind.Representation+++-- | Mapping from PostgreSQL types to Haskell types.+type family PostgresType (a :: Symbol)+++-- | Function that constructs binding for PostgreSQL stored function by it's signature.+bindFunction :: Options -> Text -> Q [Dec]+bindFunction opt = (mkFunction opt) . parsePGFunction ++++data Argument = forall a . (ToField a) => MandatoryArg String a+ | forall a . (ToField a) => OptionalArg String (Maybe a)++instance ToField Argument where+ toField (MandatoryArg _ x) = toField x+ toField (OptionalArg _ (Just x)) = toField x+ toField (OptionalArg _ Nothing) = error "OptionalArg::toField: encountered Nothing"+++formatArgument :: Argument -> String+formatArgument (MandatoryArg name _) = "?"+formatArgument (OptionalArg name (Just _)) = name ++ " => ?"++formatArguments :: [Argument] -> String+formatArguments = concat . (intersperse ",") . (map formatArgument)++ +isActual :: Argument -> Bool+isActual (OptionalArg _ Nothing) = False+isActual _ = True++filterArguments :: [Argument] -> [Argument]+filterArguments = filter isActual+++++mkFunction :: Options -> PGFunction -> Q [Dec]+mkFunction opt f = sequence $ (($ f) . ($ opt)) <$> [mkFunctionT, mkFunctionE]++postgresT t = AppT (ConT ''PostgresType) (LitT (StrTyLit t))++mkContextT :: Name -> String -> Name -> [Type]+mkContextT c t n = [+ EqualityT `AppT` (postgresT t) `AppT` (VarT n)+ , (ConT c) `AppT` (VarT n)] where+ ++mkResultT :: PGResult -> Q ([Name], [Type], Type)++mkResultT (PGSingle t) = do+ name <- newName "y"+ return ([name], mkContextT ''FromField t name, VarT name)++mkResultT (PGSetOf t) = do+ (names, context, clause) <- mkResultT (PGSingle t)+ return (names, context, AppT ListT clause)++mkResultT (PGTable cs) = do+ names <- sequence $ replicate (length cs) (newName "y")+ let context = concat $ zipWith (\(PGColumn _ t) n -> mkContextT ''FromField t n) cs names+ let clause = AppT ListT $ foldl AppT (TupleT (length cs)) $ map VarT names+ return (names, context, clause)+++mkArgsT :: [PGArgument] -> Q ([Name], [Type], [Type])+mkArgsT cs = do+ names <- sequence $ replicate (length cs) (newName "x")+ let context = concat $ zipWith (\(PGArgument _ t _) n -> mkContextT ''ToField t n) cs names++ let defWrap d = case d of+ True -> AppT (ConT ''Maybe)+ False -> id+ + let clause = zipWith (\(PGArgument _ _ d) -> (defWrap d) . VarT) cs names + return (names, context, clause)+++mkFunctionT :: Options -> PGFunction -> Q Dec+mkFunctionT opt f@(PGFunction schema name args ret) = do+ (argNames, argContext, argClause) <- mkArgsT args+ (retNames, retContext, retClause) <- mkResultT ret++ let vars = map PlainTV (argNames ++ retNames)+ let context = argContext ++ retContext++ let chain x = AppT (AppT ArrowT x)+ let clause = foldr1 chain $ (ConT ''Connection):(argClause ++ [AppT (ConT ''IO) retClause])++ return $ SigD (mkName (mkFunctionName opt f)) $ ForallT vars context clause+++ +mkSqlQuery :: PGFunction -> Name -> Exp+mkSqlQuery (PGFunction schema name args ret) argsName = toQuery $ foldr1 AppE [+ (AppE (VarE '(++)) (mkStrLit $ concat [prefix, " ", functionName, "("]))+ , (AppE (VarE '(++)) ((VarE 'formatArguments) `AppE` (VarE argsName)))+ , (mkStrLit ")")] where+ + prefix = case ret of+ PGTable _ -> "select * from"+ _ -> "select"++ functionName = case schema of+ "" -> name+ _ -> schema ++ "." ++ name+ + mkStrLit s = LitE (StringL s)++ toQuery = AppE (ConE 'Query) . AppE (VarE 'BS.pack)++ + +unwrapE :: PGResult -> Exp -> Exp+unwrapE (PGSingle _) q = (VarE 'fmap) `AppE` (VarE 'unwrapRow) `AppE` q+unwrapE (PGSetOf _) q = (VarE 'fmap) `AppE` (VarE 'unwrapColumn) `AppE` q+unwrapE (PGTable _) q = q+++mkFunctionE :: Options -> PGFunction -> Q Dec+mkFunctionE opt f@(PGFunction schema name args ret) = do+ names <- sequence $ replicate (length args) (newName "x")++ connName <- newName "conn"+ argsName <- newName "args"++ let funcName = mkName $ mkFunctionName opt f++ let funcArgs = (VarP connName):(map VarP names)++ let funcBody = NormalB $ unwrapE ret $ foldl1 AppE [+ (VarE 'query)+ , (VarE connName)+ , (mkSqlQuery f argsName)+ , (VarE argsName)]++ let wrapArg (PGArgument n _ d) argName = foldl1 AppE $ case d of+ False -> [(ConE 'MandatoryArg), (LitE (StringL n)), (VarE argName)]+ True -> [(ConE 'OptionalArg), (LitE (StringL n)), (VarE argName)]+ --True -> [(ConE 'OptionalArg), (LitE (StringL n)), ((ConE 'Just) `AppE` (VarE argName))]++ let argsBody = NormalB $ (VarE 'filterArguments) `AppE` (ListE $ zipWith wrapArg args names)++ return $ FunD funcName [Clause funcArgs funcBody [ValD (VarP argsName) argsBody []]]+ ++++-- sqlGetVal :: forall x_acMJ y_acMK.+-- (PostgresType "bigint" ~ x_acMJ, ToField x_acMJ,+-- PostgresType "bigint" ~ y_acMK, FromField y_acMK)+-- => Connection -> Maybe x_acMJ -> IO y_acMK+-- +-- sqlGetVal conn_acMM x_acML =+-- fmap unwrapRow+-- (query+-- conn_acMM+-- (Query (pack ((++) "select get_val(" ((++) (formatArguments args_acMN) ")")))) args_acMN)+-- where+-- args_acMN = filterArguments [OptionalArg "p_number" (Just x_acML)]+
+ src/Database/PostgreSQL/Simple/Bind/Representation.hs view
@@ -0,0 +1,152 @@+{-# LANGUAGE DataKinds #-}+{-# LANGUAGE DeriveGeneric #-}+{-# LANGUAGE EmptyDataDecls #-}+{-# LANGUAGE FlexibleContexts #-}+{-# LANGUAGE GADTs #-}+{-# LANGUAGE GeneralizedNewtypeDeriving #-}+{-# LANGUAGE MultiParamTypeClasses #-}+{-# LANGUAGE OverloadedStrings #-}+{-# LANGUAGE QuasiQuotes #-}+{-# LANGUAGE TemplateHaskell #-}+{-# LANGUAGE TypeFamilies #-}+{-# LANGUAGE TypeOperators #-}+{-# LANGUAGE ScopedTypeVariables #-}+{-# LANGUAGE FlexibleInstances #-} ++{-|+ Module: Database.PostgreSQL.Simple.Bind.Representation+ Copyright: (c) 2016 Al Zohali+ License: GPL3+ Maintainer: Al Zohali <zohl@fmap.me>+ Stability: experimental+ + An algebraic data type that (partially) represents function declaration based on+ <http://www.postgresql.org/docs/9.5/static/sql-createfunction.html PostgreSQL documentation>.+-}++module Database.PostgreSQL.Simple.Bind.Representation (+ PGFunction(..)+ , PGArgument(..)+ , PGColumn(..)+ , PGResult(..)+ , parsePGFunction+ ) where+++import Prelude hiding (takeWhile, length)+import Control.Applicative+import Data.Attoparsec.Text+import Data.Text (Text, toLower, pack, unpack, append, length)++++-- | Representation of a function's argument (name, type, is optional).+data PGArgument = PGArgument String String Bool deriving (Show, Eq)++-- | Representation of a PostrgeSQL function signature (schema, name, arguments, result).+data PGFunction = PGFunction String String [PGArgument] PGResult deriving (Show, Eq)++-- | Representation of a resultant's column (name, type). +data PGColumn = PGColumn String String deriving (Show, Eq)++-- | Representation of a function's return value.+data PGResult = PGSingle String+ | PGSetOf String+ | PGTable [PGColumn] deriving (Show, Eq)+++-- | Takes PostgreSQL function signature and represent it as an algebraic data type.+parsePGFunction :: Text -> PGFunction+parsePGFunction s = result where+ result = case (parseOnly parseFunction s) of+ Right x -> x++ ss = skipSpace++ parseFunction = do+ ss *> asciiCI "function" + schema <- ss *> ((parseIdentifier <* (char '.')) <|> (string ""))+ name <- ss *> parseIdentifier+ args <- ss *> char '(' *> (parseArgs `sepBy` (char ','))+ ret <- ss *> char ')' *> parseReturn+ return $ PGFunction (unpack schema) (unpack name) args ret++ parseArgs = do+ name <- ss *> parseIdentifier+ datatype <- ss *> parseType+ def <- ss *> ((asciiCI "default" <|> string "=") *> (takeTill (inClass ",)")) <|> (string ""))+ -- WARNING: parsing default values requires ability to parse almost arbitraty expressions.+ -- Here is a quick and dirty implementation of the parser.++ return $ PGArgument (unpack name) (unpack datatype) ((length def) > 0)+ + parseCols = do+ name <- ss *> parseIdentifier+ datatype <- ss *> parseType <* ss+ return $ PGColumn (unpack name) (unpack datatype)++ parseReturn = do+ ret <- ss *> asciiCI "returns" *> ss *> (+ asciiCI "setof"+ <|> asciiCI "table"+ <|> parseType)++ case toLower(ret) of+ "setof" -> (PGSetOf . unpack) <$> (ss *> parseType)+ "table" -> PGTable <$> (ss *> char '(' *> parseCols `sepBy` (char ',') <* ss <* char ')')+ t -> return $ PGSingle (unpack t)++ parseIdentifier = do+ s1 <- takeWhile1 (inClass "a-zA-Z_")+ s2 <- takeWhile (inClass "a-zA-Z_0-9$")+ return $ toLower $ s1 `append` s2++ parseType = toLower <$> (foldr1 (<|>) $+ (map asciiCI [ "double precision" ])+ ++ (map (\s -> (asciiCI s <* ss <* (parseModifiers 1))) ["bit", "character varying"])+ ++ (map (\s -> (asciiCI s <* ss <* (parseModifiers 2))) ["numeric", "decimal"])+ ++ (map parseTime ["timestamp", "time"])+ ++ [parseInterval, parseIdentifier <* (parseModifiers 4)])+ -- WARNING: user defined types can have more complex modifiers.+ -- The argument of parseModifiers might be a subject to change.++ parseTime s = do+ base <- asciiCI s <* ss <* (parseModifiers 1)+ tz <- ss *> ((asciiCI "with time zone") <|> (asciiCI "without time zone") <|> (string ""))+ return $ case tz of+ "" -> base+ _ -> base `append` " " `append` tz+ + parseInterval = do+ base <- (asciiCI "interval") <* ss+ fields <- foldr1 (<|>) $ map asciiCI [+ "year to month"+ , "day to hour"+ , "day to minute"+ , "day to second"+ , "hour to minute"+ , "hour to second"+ , "minute to second"+ , "year"+ , "month"+ , "day"+ , "hour"+ , "minute"+ , "second"+ , ""]+ ss *> (parseModifiers 1)++ return $ case fields of+ "" -> base+ _ -> base `append` " " `append` fields+ ++ parseModifiers n = ((char '(') *>(foldl (*>)+ (ss *> decimal *> ss)+ (replicate (n - 1) (char ',' *> ss *> decimal *> ss)))+ *> (char ')') *> (string ""))+ <|> (case n of+ 1 -> (string "")+ _ -> (parseModifiers (n - 1)))+ +
+ src/Database/PostgreSQL/Simple/Bind/Types.hs view
@@ -0,0 +1,45 @@+{-# LANGUAGE DataKinds #-}+{-# LANGUAGE DeriveGeneric #-}+{-# LANGUAGE EmptyDataDecls #-}+{-# LANGUAGE FlexibleContexts #-}+{-# LANGUAGE GADTs #-}+{-# LANGUAGE GeneralizedNewtypeDeriving #-}+{-# LANGUAGE MultiParamTypeClasses #-}+{-# LANGUAGE OverloadedStrings #-}+{-# LANGUAGE QuasiQuotes #-}+{-# LANGUAGE TemplateHaskell #-}+{-# LANGUAGE TypeFamilies #-}+{-# LANGUAGE TypeOperators #-}+{-# LANGUAGE ScopedTypeVariables #-}+{-# LANGUAGE FlexibleInstances #-} ++{-|+ Module: Database.PostgreSQL.Simple.Bind.Types+ Copyright: (c) 2016 Al Zohali+ License: GPL3+ Maintainer: Al Zohali <zohl@fmap.me>+ Stability: experimental++ Default instances for PostgresType family.+-}+++module Database.PostgreSQL.Simple.Bind.Types (+ PostgresType+ ) where++import Data.Text+import Data.Time+import Database.PostgreSQL.Simple.Bind.Implementation (PostgresType)+++type instance PostgresType "character varying" = Text+type instance PostgresType "varchar" = Text++type instance PostgresType "bigint" = Int ++type instance PostgresType "void" = ()++type instance PostgresType "timestamp with time zone" = UTCTime+type instance PostgresType "timestamptz" = UTCTime+
+ src/Database/PostgreSQL/Simple/Bind/Util.hs view
@@ -0,0 +1,138 @@+{-# LANGUAGE DataKinds #-}+{-# LANGUAGE DeriveGeneric #-}+{-# LANGUAGE EmptyDataDecls #-}+{-# LANGUAGE FlexibleContexts #-}+{-# LANGUAGE GADTs #-}+{-# LANGUAGE GeneralizedNewtypeDeriving #-}+{-# LANGUAGE MultiParamTypeClasses #-}+{-# LANGUAGE OverloadedStrings #-}+{-# LANGUAGE QuasiQuotes #-}+{-# LANGUAGE TemplateHaskell #-}+{-# LANGUAGE TypeFamilies #-}+{-# LANGUAGE TypeOperators #-}+{-# LANGUAGE ScopedTypeVariables #-}+{-# LANGUAGE FlexibleInstances #-} ++{-|+ Module: Database.PostgreSQL.Simple.Bind.Util+ Copyright: (c) 2016 Al Zohali+ License: GPL3+ Maintainer: Al Zohali <zohl@fmap.me>+ Stability: experimental+ + Misc auxiliary functions.+-}+++module Database.PostgreSQL.Simple.Bind.Util (+ unwrapRow+ , unwrapColumn+ , Options(..)+ , defaultOptions+ , getFunctionDeclaration + , generateBindingsModule+ , mkFunctionName+ ) where+++import Data.Text (Text, append, pack, breakOnEnd, dropEnd)+import Data.List+import Data.Maybe (isNothing)+import Database.PostgreSQL.Simple+import Database.PostgreSQL.Simple.Types+import Database.PostgreSQL.Simple.Bind.Representation+import Text.Heredoc+import qualified Data.ByteString.Char8 as BS+++-- | Options that specify how to construct the function binding.+data Options = Options {+ nameModifier :: String -> String+ -- ^ Function applied to the function's name.++ , schemaModifier :: String -> String+ -- ^ Function applied to the function's schema name.+ }+{-|+ Default 'Options':+ + @+ 'Options' {+ 'nameModifier' = id+ 'schemaModifier' = ""+ }+ @+-}+defaultOptions = Options {+ nameModifier = id+ , schemaModifier = (\_ -> "")+ }++-- | Given 'Options' and PostgreSQL function representation construct the name of the corresponding haskell function.+mkFunctionName :: Options -> PGFunction -> String+mkFunctionName opt (PGFunction schema name _ _) = concat $ [+ (schemaModifier opt) schema+ , (nameModifier opt) name+ ]+++-- | Remove 'Only' constructor.+unwrapColumn :: [Only a] -> [a]+unwrapColumn = map (\(Only x) -> x)++-- | Remove list and 'Only' constructors.+unwrapRow :: [Only a] -> a+unwrapRow = head . unwrapColumn+++-- | Fetch function declaration that can be passed to 'bindFunction'.+getFunctionDeclaration :: Connection -> Text -> IO Text+getFunctionDeclaration conn name = unwrapRow <$> query conn sql (Only name) where+ sql = Query $ BS.pack $ [str| + | select 'function '+ | || p.proname+ | || '('||pg_catalog.pg_get_function_arguments(p.oid)||')'+ | || ' returns '||pg_catalog.pg_get_function_result(p.oid)+ | from pg_catalog.pg_proc p+ | left join pg_catalog.pg_namespace n on n.oid = p.pronamespace+ | where p.proname ~ ('^('|| ? ||')$')+ | and not p.proisagg+ | and not p.proiswindow+ | and p.prorettype != ('pg_catalog.trigger'::pg_catalog.regtype)+ | limit 1;+ |]+++-- | Given full path to options, module name and functions' names generate complete module.+generateBindingsModule :: Connection -> Text -> Text -> [Text] -> IO Text+generateBindingsModule conn opt name ns = do+ ds <- mapM (getFunctionDeclaration conn) ns+ let fs = parsePGFunction <$> ds++ let (optPath', optName) = breakOnEnd "." opt+ let optPath = dropEnd 1 optPath'++ let mkList xs = foldl1' append $ (" " :) $ intersperse "\n , " xs++ return $ foldl1' append $ [ + [str| -- This module was automatically generated. Do not edit it.+ |+ |{-# LANGUAGE DataKinds #-}+ |{-# LANGUAGE OverloadedStrings #-}+ |{-# LANGUAGE TemplateHaskell #-}+ |{-# LANGUAGE TypeFamilies #-}+ |+ |]+ , "module ", name, " where "+ , [str|+ |+ |import Database.PostgreSQL.Simple.Bind (bindFunction)+ |]+ , "import ", optPath, " (", optName, ")"+ , [str|+ |import Database.PostgreSQL.Simple.Bind.Types()+ |+ |concat <$> mapM (bindFunction |], optName, [str|) [+ |]+ , (mkList $ map (("\"" `append`) . (`append` "\"")) ds)+ , "\n ]"]
+ tests/Main.hs view
@@ -0,0 +1,23 @@+{-# LANGUAGE OverloadedStrings #-}+{-# LANGUAGE NamedFieldPuns #-}++import Test.HUnit+import Control.Monad+import System.IO+import System.Exit++import TestRepresentation+++tests :: [Test]+tests = [+ TestLabel "Representation" testRepresentation+ ]++main :: IO ()+main = do+ mapM_ (`hSetBuffering` LineBuffering) [stdout, stderr]++ Counts {cases, tried, errors, failures} <- runTestTT $ TestList tests+ when (cases /= tried || errors /= 0 || failures /= 0) $ exitFailure+